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Puccinia rust Black & White Stock Photos

. Elementary botany. Botany. CHAPTER XXL FUNGI CONTINUED (RUSTS AND SAC FUNGI). "Rusts" (Uredineae. 288. The fungi known as "rusts" are very important ones to study, since all the species are parasitic, and many produce serious injuries to crops. 289. Wheat rust (Puccinia graminis).—The wheat rust is one of the best known of these fungi, since a great deal of study has been given to it. One form of the plant occurs in long. Fig. 145. Fig. 14G. Fig. 147. Fig. 148. Fig. 149. Wheat leaf with red Portion of leaf Natural size. Enlarged. Single St, natural size. enlarged to show Stock Photo
RMRE0P80–. Elementary botany. Botany. CHAPTER XXL FUNGI CONTINUED (RUSTS AND SAC FUNGI). "Rusts" (Uredineae. 288. The fungi known as "rusts" are very important ones to study, since all the species are parasitic, and many produce serious injuries to crops. 289. Wheat rust (Puccinia graminis).—The wheat rust is one of the best known of these fungi, since a great deal of study has been given to it. One form of the plant occurs in long. Fig. 145. Fig. 14G. Fig. 147. Fig. 148. Fig. 149. Wheat leaf with red Portion of leaf Natural size. Enlarged. Single St, natural size. enlarged to show
. Diseases of truck crops and their control . Vegetables. 'tx^ >. Pig. 52. Asparagus Diseases. a. Asparagus rust on stems, showing sori with winter spores, 6. cluster cup stage of Puccinia asparagi, c. Uredo or summer spores of P. asparagi. d. Teleuto or winter spores of P. asparagi (6. to d. after R. E. Smith).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton Stock Photo
RMRDE0C4–. Diseases of truck crops and their control . Vegetables. 'tx^ >. Pig. 52. Asparagus Diseases. a. Asparagus rust on stems, showing sori with winter spores, 6. cluster cup stage of Puccinia asparagi, c. Uredo or summer spores of P. asparagi. d. Teleuto or winter spores of P. asparagi (6. to d. after R. E. Smith).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 206 PUCCINIA oblong to clavate, rounded above and not thickened, evidently constricted, usually attenuated below, smooth, brown, 55—90 x 20—36 /u. (or even 100 jjl long); pedicels hyaline, per- sistent, very long, (reaching 160 /i). On Buxus sempervirens. Rather common. September, October, lasting through the winter and following spring. (Fig. 153.) The spores of this species easily fall apart into their component cells. Ed. Fischer proved that it has only the one spore-form : he gives (I.e.) figures showing th Stock Photo
RMRE37DG–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 206 PUCCINIA oblong to clavate, rounded above and not thickened, evidently constricted, usually attenuated below, smooth, brown, 55—90 x 20—36 /u. (or even 100 jjl long); pedicels hyaline, per- sistent, very long, (reaching 160 /i). On Buxus sempervirens. Rather common. September, October, lasting through the winter and following spring. (Fig. 153.) The spores of this species easily fall apart into their component cells. Ed. Fischer proved that it has only the one spore-form : he gives (I.e.) figures showing th
. Practical botany. Botany. 246 PEACTICAL BOTANY distributed over asparagus beds.^ The hollyhock and many other members of the mallow family (itfateaceo?), to which the hollyhock belongs, are often all but destroyed by the holly- hock rust (^Puccinia Malvacearum). JScidial stages of other rusts appear upon many common plants, as the May apple, jack-in-the-pulpit, burdock, sunflower, and blackberry. Apple rust and " cedar apples," produced by the rust G-ymnospo- rangium macro- pus, offer a strik- ing life cycle. Upon red cedar trees in the late autumn, winter, and early spring branche Stock Photo
RMRE1XA0–. Practical botany. Botany. 246 PEACTICAL BOTANY distributed over asparagus beds.^ The hollyhock and many other members of the mallow family (itfateaceo?), to which the hollyhock belongs, are often all but destroyed by the holly- hock rust (^Puccinia Malvacearum). JScidial stages of other rusts appear upon many common plants, as the May apple, jack-in-the-pulpit, burdock, sunflower, and blackberry. Apple rust and " cedar apples," produced by the rust G-ymnospo- rangium macro- pus, offer a strik- ing life cycle. Upon red cedar trees in the late autumn, winter, and early spring branche
. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. c^^'WjiB'ftp.pii iiur Fig. 452. — Uredo spores of wheat rust (Puccinia graminis), magnified. {From Coulter's "Plant Structures.") stage in the life cycle of the plant, and to this stage the old name uredo is applied, the spores being called uredo-spores. 360. Black rust. — Teleuto stage. Next examine with a lens a part of the plant attacked by black rust. Do you observe any difference ex- cept in the color? Do the two kinds of rust attack all parts of the plant e Stock Photo
RMRE2J5P–. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. c^^'WjiB'ftp.pii iiur Fig. 452. — Uredo spores of wheat rust (Puccinia graminis), magnified. {From Coulter's "Plant Structures.") stage in the life cycle of the plant, and to this stage the old name uredo is applied, the spores being called uredo-spores. 360. Black rust. — Teleuto stage. Next examine with a lens a part of the plant attacked by black rust. Do you observe any difference ex- cept in the color? Do the two kinds of rust attack all parts of the plant e
. Minnesota plant diseases. Plant diseases. Minnesota Plant Diseases. 159 Rusts (UredinecB). The rust fungi constitute a larger group of plants than the smuts and exhibit more variety of structure and habit. They may be considered as relatives of the smuts in that the winter spores of the latter may be compared with. Fig. 73.—Spores of rust fungi. 1. A cluster of winter spores of wheat rust (Puccinia graminis) on wheat plant. 2. A winter spore germinating to a thread of four cells (promycelium—basidium), each of which bears a small spore (sporidium) on a stalk. The winter spore germinates in t Stock Photo
RMRDEXK0–. Minnesota plant diseases. Plant diseases. Minnesota Plant Diseases. 159 Rusts (UredinecB). The rust fungi constitute a larger group of plants than the smuts and exhibit more variety of structure and habit. They may be considered as relatives of the smuts in that the winter spores of the latter may be compared with. Fig. 73.—Spores of rust fungi. 1. A cluster of winter spores of wheat rust (Puccinia graminis) on wheat plant. 2. A winter spore germinating to a thread of four cells (promycelium—basidium), each of which bears a small spore (sporidium) on a stalk. The winter spore germinates in t
. Minnesota plant diseases. Plant diseases. 2 86 Minnesota Plant Diseases.. Fig. 142.—Spores of the common "black rust" (Puccinia graminis) of wheat. 1. Cluster-cup spores from the barberry plant. 2. Summer spores from the wheat plant. 3. Winter spores from the wheat plant. Highly magnified. After Arthur and Holway. aggerated because the smaller losses due to the presence of the rust in very slight and therefore unheeded quantities may never be computed. These are, nevertheless, a' certain loss. There is only a difference in degree. The en- tire eHmination of /^^^^^ rust would theref Stock Photo
RMRDE3F5–. Minnesota plant diseases. Plant diseases. 2 86 Minnesota Plant Diseases.. Fig. 142.—Spores of the common "black rust" (Puccinia graminis) of wheat. 1. Cluster-cup spores from the barberry plant. 2. Summer spores from the wheat plant. 3. Winter spores from the wheat plant. Highly magnified. After Arthur and Holway. aggerated because the smaller losses due to the presence of the rust in very slight and therefore unheeded quantities may never be computed. These are, nevertheless, a' certain loss. There is only a difference in degree. The en- tire eHmination of /^^^^^ rust would theref
. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. 246 RUSTS (UREDINE./E) appropriate Grass, whereupon hyphse grow out through special thin areas of the wall (Fig. 131, /), to start a fresh generation of the Rust. In this way the disease rapidly spreads during the summer months. In rare cases the Fungus may persist through the winter by. Fig. 131.—Rust of Wheat (Puccinia graminis). a, small part of leaf of Barberry, showing a group of iccidia ; b, group of uredospores (».) and one teleutospore [t.) ; c, germinating teleutospore (only the hypha growing from on Stock Photo
RMRDWPKG–. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. 246 RUSTS (UREDINE./E) appropriate Grass, whereupon hyphse grow out through special thin areas of the wall (Fig. 131, /), to start a fresh generation of the Rust. In this way the disease rapidly spreads during the summer months. In rare cases the Fungus may persist through the winter by. Fig. 131.—Rust of Wheat (Puccinia graminis). a, small part of leaf of Barberry, showing a group of iccidia ; b, group of uredospores (».) and one teleutospore [t.) ; c, germinating teleutospore (only the hypha growing from on
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 160 PUCCINIA Teleutospores. Sori hypophyllous, rarely epiphyllous, often on the petioles and stems, scattered or circi- nate, minute, sometimes (especially on the stems) confluent and larger, long covered by the epidermis, then surrounded by it, round- ish or irregular, ferruginous-brown; spores ellipsoid or oblong, rounded and not thick- Fig. 111. P Gam- gng(j above, but with a pale papilla to each panulae. Teleuto- ' . jr jr r spores, on C. ro- germ-pore, constricted, rounded or somewhat tun ijo la. attenuate Stock Photo
RMRE37RE–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 160 PUCCINIA Teleutospores. Sori hypophyllous, rarely epiphyllous, often on the petioles and stems, scattered or circi- nate, minute, sometimes (especially on the stems) confluent and larger, long covered by the epidermis, then surrounded by it, round- ish or irregular, ferruginous-brown; spores ellipsoid or oblong, rounded and not thick- Fig. 111. P Gam- gng(j above, but with a pale papilla to each panulae. Teleuto- ' . jr jr r spores, on C. ro- germ-pore, constricted, rounded or somewhat tun ijo la. attenuate
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 224 pucciNiA Distribution : Central and Northern Europe, Siberia, North America. 94. Puccinia Oxyriae Fckl. Puccinia Oxyriae Fckl. Symb. Nacht. iii. 14. Oooke, Grevillea, xi. 15. Plowr. Ured. p. 194. Sacc. Syll. vii. 642. Sydow, Monogr. i. 567. Fischer, Ured. Schweiz, p. 135, f. 102. JJredospores. Sori amphigenous, generally hypophyllous, on minute purplish spots, scattered or aggregated, rounded, sometimes confluent, surrounded by the cleft epidermis, cinna- mon; spores globose to ovate, delicately echinulate, Stock Photo
RMRE379Y–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 224 pucciNiA Distribution : Central and Northern Europe, Siberia, North America. 94. Puccinia Oxyriae Fckl. Puccinia Oxyriae Fckl. Symb. Nacht. iii. 14. Oooke, Grevillea, xi. 15. Plowr. Ured. p. 194. Sacc. Syll. vii. 642. Sydow, Monogr. i. 567. Fischer, Ured. Schweiz, p. 135, f. 102. JJredospores. Sori amphigenous, generally hypophyllous, on minute purplish spots, scattered or aggregated, rounded, sometimes confluent, surrounded by the cleft epidermis, cinna- mon; spores globose to ovate, delicately echinulate,
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON COMPOSITE 131 the epidermis and resemble rather a Dothidea or Asteroina than a Fuccinia. The spores bear a slight resemblance to those of P. Poarum, but are more fusiform, and much more thickened at the apex. Mixed with them are sometimes a number of mesospores. Distribution : Europe, except the southern parts. 3. Puccinia Millefolii Fckl. Pucdnia MUlefolii Fckl. Symb. Myc. p. 55. Cooke, Micr. Fung. p. 207. Plowr. Ured. p. 215. Sydow, Monogr. i. 2. Fischer, Ured. Sohweiz, p. 296, f. 216. indistinct spots,. F Stock Photo
RMRE380X–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON COMPOSITE 131 the epidermis and resemble rather a Dothidea or Asteroina than a Fuccinia. The spores bear a slight resemblance to those of P. Poarum, but are more fusiform, and much more thickened at the apex. Mixed with them are sometimes a number of mesospores. Distribution : Europe, except the southern parts. 3. Puccinia Millefolii Fckl. Pucdnia MUlefolii Fckl. Symb. Myc. p. 55. Cooke, Micr. Fung. p. 207. Plowr. Ured. p. 215. Sydow, Monogr. i. 2. Fischer, Ured. Sohweiz, p. 296, f. 216. indistinct spots,. F
. Essentials of botany. Botany; Botany. 256 ESSENTIALS OF BOTANY one is known as the cluster-cup stage and the others as red . rust and llach rust, according to the usual approximate color of the spores. The rust called Puccinia graminis, growing on wheat, has its cluster-cup stage on the leaves of barberry in June. The spores from the cluster-cups are carried by the wind to the wheat, where they germi- nate and in a few days produce the red rust. A little later the black spores appear, produced by the same myce- lium. This growth is chiefly upon the stems and sheaths.. Fig. 181. A Cluster-Cup Stock Photo
RMRDG524–. Essentials of botany. Botany; Botany. 256 ESSENTIALS OF BOTANY one is known as the cluster-cup stage and the others as red . rust and llach rust, according to the usual approximate color of the spores. The rust called Puccinia graminis, growing on wheat, has its cluster-cup stage on the leaves of barberry in June. The spores from the cluster-cups are carried by the wind to the wheat, where they germi- nate and in a few days produce the red rust. A little later the black spores appear, produced by the same myce- lium. This growth is chiefly upon the stems and sheaths.. Fig. 181. A Cluster-Cup
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON UMBELLIFERjE 195 67. Puccinia Chaerophylli Purt. Puccinia Ch(xerophylli Purton, Midi. Flor. iii. 303. i. 367. Fischer, Ured. Schweiz, p. 129, f. 98. P. Pimpinellae Str. ; Plowr. Ured. p. 155 p.p. Sydow, Monogr. Spermogones. Pale-yellow, roundish. JEcidiospores. -^cidia on the leaves and petioles, on the leaves scattered or circinate, on the petioles and nerves in dense elongated clusters and causing a slight hypertrophy, between cup-shaped and pustulate, yellowish; peridium poorly developed ; spores verrucul Stock Photo
RMRE37F4–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON UMBELLIFERjE 195 67. Puccinia Chaerophylli Purt. Puccinia Ch(xerophylli Purton, Midi. Flor. iii. 303. i. 367. Fischer, Ured. Schweiz, p. 129, f. 98. P. Pimpinellae Str. ; Plowr. Ured. p. 155 p.p. Sydow, Monogr. Spermogones. Pale-yellow, roundish. JEcidiospores. -^cidia on the leaves and petioles, on the leaves scattered or circinate, on the petioles and nerves in dense elongated clusters and causing a slight hypertrophy, between cup-shaped and pustulate, yellowish; peridium poorly developed ; spores verrucul
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 272 PUCCINIA uEcidiospores. J^cidia hypophyllous in small clusters on yellowish spots, or on the petioles or stems forming elongated groups, cup-shaped, with a cut white margin; spores densely and finely verruculose, yellowish, 15—25/i. Uredospores. Sori amphigenous, scattered, rarely confluent, elliptical or oblong, 1—2 mm. long, pulverulent, pale yellowish- brown ; spores mostly ovate or ellipsoid, delicately echinulate, pale brownish-yellow, 20—35 x 12—20/x; germ-pores indis- tinct ; paraphyses numerous, cla Stock Photo
RMRE1WNP–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 272 PUCCINIA uEcidiospores. J^cidia hypophyllous in small clusters on yellowish spots, or on the petioles or stems forming elongated groups, cup-shaped, with a cut white margin; spores densely and finely verruculose, yellowish, 15—25/i. Uredospores. Sori amphigenous, scattered, rarely confluent, elliptical or oblong, 1—2 mm. long, pulverulent, pale yellowish- brown ; spores mostly ovate or ellipsoid, delicately echinulate, pale brownish-yellow, 20—35 x 12—20/x; germ-pores indis- tinct ; paraphyses numerous, cla
. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 2o6 MYCOLOGY Rust of Stone Fruits, Puccinia pruni-spinoscE, occurs on various species of the genus Prunus in the southern and central United States.. Fig 76—Fully expanded cedar apple on red cedar. Long yellow teliosori as bnger-hke projections are seen. {After Jones and Bartholomew, Bull. 2S7. Agric Exper. Stat., Vmv. Wise, July, 1915.) The aecial stage occurs on Anemone and Hepatica, and is known as jEcidium punctatum. Hollyhock Rust, Puccinia malmcearum (Fig. 72), is found over the w Stock Photo
RMRDE2BA–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 2o6 MYCOLOGY Rust of Stone Fruits, Puccinia pruni-spinoscE, occurs on various species of the genus Prunus in the southern and central United States.. Fig 76—Fully expanded cedar apple on red cedar. Long yellow teliosori as bnger-hke projections are seen. {After Jones and Bartholomew, Bull. 2S7. Agric Exper. Stat., Vmv. Wise, July, 1915.) The aecial stage occurs on Anemone and Hepatica, and is known as jEcidium punctatum. Hollyhock Rust, Puccinia malmcearum (Fig. 72), is found over the w
. Elementary botany. Botany. Fig. 159. Fig. 160. Germ tube entering the Germinating uredospore of wheat rust. (After Marshall- leaf through a stoma Ward.). Fig. 101. Teleutospore germi nating, forming promy- cerium. Fig. 162. Proinycelium of ger- minating teleutospore, forming sporidia. Fig. 163. Germinating sporidia entering leaf of barberry by mycelium. uiiiiiug piuiny- iiiiiiaiuig Liiicim p>|ii m 1:, ui uai uei ry uy mycelium, forming sporidia. Figs. 161-163.—Puccinia graminis (wheat rust). (After Marshall-Ward.). Please note that these images are extracted from scanned page images that Stock Photo
RMRDWG66–. Elementary botany. Botany. Fig. 159. Fig. 160. Germ tube entering the Germinating uredospore of wheat rust. (After Marshall- leaf through a stoma Ward.). Fig. 101. Teleutospore germi nating, forming promy- cerium. Fig. 162. Proinycelium of ger- minating teleutospore, forming sporidia. Fig. 163. Germinating sporidia entering leaf of barberry by mycelium. uiiiiiug piuiny- iiiiiiaiuig Liiicim p>|ii m 1:, ui uai uei ry uy mycelium, forming sporidia. Figs. 161-163.—Puccinia graminis (wheat rust). (After Marshall-Ward.). Please note that these images are extracted from scanned page images that
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 212 PUCCINIA 82. Puccinia Ribis DC. Puccinia Ribis DC. Flor. fr. ii. 221. Gard. Chron. 1894, xvi. 136. Trans. Brit. Myo. Soc. i. 57. Saoc. Syll. vii. 679. Sydow, Mbnogr. i. 496. Teleutospores.. Fig. 159. P. Ribis. Teleutospores and mesospore. Sori epiphyllous, orbicular, surrounded by a discoloured yellow zone, circinate and often confluent, pulverulent, rich chestnut-brown; spores oval or oblong, rounded above and be- low, apex thickened slightly and hooded, hardly constricted, verru- culose or rather punctate Stock Photo
RMRE37C7–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 212 PUCCINIA 82. Puccinia Ribis DC. Puccinia Ribis DC. Flor. fr. ii. 221. Gard. Chron. 1894, xvi. 136. Trans. Brit. Myo. Soc. i. 57. Saoc. Syll. vii. 679. Sydow, Mbnogr. i. 496. Teleutospores.. Fig. 159. P. Ribis. Teleutospores and mesospore. Sori epiphyllous, orbicular, surrounded by a discoloured yellow zone, circinate and often confluent, pulverulent, rich chestnut-brown; spores oval or oblong, rounded above and be- low, apex thickened slightly and hooded, hardly constricted, verru- culose or rather punctate
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 194 pucciNiA 66. Puccinia Heraclei Grev. Trichobasis Heraclei Berk. ; Cooke, Micr. Fung. p. 225. Puccinia Heraclei Grev. Scot. Cr. Flor. pi. 42. Cooke, Handb. p. 502 ; Micr. Fung. p. 208. Sydow, Monogr. i. 387. Fischer, Ured. Sohweiz, p. 132. P. Pimpinellae Strauss ; Plowr. Ured. p. 155 p.p. Spermogones. Amphigenous, scattered amongst the secidia, pale-yellowish. JEcidiospores. .^cidia hypophyllous, frequently on the petioles and especially on the nerves of the leaves, on thickened yellowish spots, densely crow Stock Photo
RMRE37FC–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 194 pucciNiA 66. Puccinia Heraclei Grev. Trichobasis Heraclei Berk. ; Cooke, Micr. Fung. p. 225. Puccinia Heraclei Grev. Scot. Cr. Flor. pi. 42. Cooke, Handb. p. 502 ; Micr. Fung. p. 208. Sydow, Monogr. i. 387. Fischer, Ured. Sohweiz, p. 132. P. Pimpinellae Strauss ; Plowr. Ured. p. 155 p.p. Spermogones. Amphigenous, scattered amongst the secidia, pale-yellowish. JEcidiospores. .^cidia hypophyllous, frequently on the petioles and especially on the nerves of the leaves, on thickened yellowish spots, densely crow
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 166 PUCCINIA on that plant. I am not certain that P. punctata lives on O. Cruciata, though I think I have seen it on that host; the two usual species on that Qaliwrn are P. Celakovskyana and P. Valantiae (q.v.). The seoidium seems to be less common than the other spore-forms : I have seen it on O. Mollugo, Q. verum and O. uliginosum. Mesospores have heen observed on O. palustre, G. saxatile and O. verum. On O. saxatile the teleutospores were slightly larger than in the normal form, but otherwise identical; P. V Stock Photo
RMRE37PG–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 166 PUCCINIA on that plant. I am not certain that P. punctata lives on O. Cruciata, though I think I have seen it on that host; the two usual species on that Qaliwrn are P. Celakovskyana and P. Valantiae (q.v.). The seoidium seems to be less common than the other spore-forms : I have seen it on O. Mollugo, Q. verum and O. uliginosum. Mesospores have heen observed on O. palustre, G. saxatile and O. verum. On O. saxatile the teleutospores were slightly larger than in the normal form, but otherwise identical; P. V
. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 204 MYCOLOGY Dandelion Rust, Puccinia iaraxaci, on the dandelion Taraxacum officinale, rather common in Europe, North America, Japan and the East Indies. Reed Grass Rust, Puccinia phragmitis, with aecia on Rumex crispus, R. obtusifolius and urediniospores and teliospores on reed grass Phrag- mites communis.. Fig. 73.—Roeslclia auranliaca on fruit oi Amelanchicr intermedia corresponding to Gymnosporangium clavipes on red cedar. (Shelter Island, New York, July 16, 19.15) Ash Rust, Puccini Stock Photo
RMRDE2C0–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 204 MYCOLOGY Dandelion Rust, Puccinia iaraxaci, on the dandelion Taraxacum officinale, rather common in Europe, North America, Japan and the East Indies. Reed Grass Rust, Puccinia phragmitis, with aecia on Rumex crispus, R. obtusifolius and urediniospores and teliospores on reed grass Phrag- mites communis.. Fig. 73.—Roeslclia auranliaca on fruit oi Amelanchicr intermedia corresponding to Gymnosporangium clavipes on red cedar. (Shelter Island, New York, July 16, 19.15) Ash Rust, Puccini
. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. 318 PRACTICAL COURSE IN BOTANY. c^^'WjiB'ftp.pii iiur Fig. 452. — Uredo spores of wheat rust (Puccinia graminis), magnified. {From Coulter's "Plant Structures.") stage in the life cycle of the plant, and to this stage the old name uredo is applied, the spores being called uredo-spores. 360. Black rust. — Teleuto stage. Next examine with a lens a part of the plant attacked by black rust. Do you observe any difference ex- cept in the color? Do the two kinds of rust Stock Photo
RMRE2J62–. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. 318 PRACTICAL COURSE IN BOTANY. c^^'WjiB'ftp.pii iiur Fig. 452. — Uredo spores of wheat rust (Puccinia graminis), magnified. {From Coulter's "Plant Structures.") stage in the life cycle of the plant, and to this stage the old name uredo is applied, the spores being called uredo-spores. 360. Black rust. — Teleuto stage. Next examine with a lens a part of the plant attacked by black rust. Do you observe any difference ex- cept in the color? Do the two kinds of rust
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON GEAMINE^ 269 I have found that in many cases only one cluster is formed (or at most two small ones) on a leaf; this probably indicates a scarcity of active basidiospores. In other localities, however, eight or ten clusters may be found on a single leaf. This secidium must not be confounded with Caeoma AlUorum, which belongs to the Melampsoriie. (4) PucciNiA Phalaeidis Plowr. jEcidium Ari Desm. Cat. Plant, omis. p. 26. Cooke, Handb. p. 545 ; ilicr. Fung. p. 199. Piiccinia Phalaridis Plowr. Jouru. Linn. Soc. 1 Stock Photo
RMRE1WP4–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON GEAMINE^ 269 I have found that in many cases only one cluster is formed (or at most two small ones) on a leaf; this probably indicates a scarcity of active basidiospores. In other localities, however, eight or ten clusters may be found on a single leaf. This secidium must not be confounded with Caeoma AlUorum, which belongs to the Melampsoriie. (4) PucciNiA Phalaeidis Plowr. jEcidium Ari Desm. Cat. Plant, omis. p. 26. Cooke, Handb. p. 545 ; ilicr. Fung. p. 199. Piiccinia Phalaridis Plowr. Jouru. Linn. Soc. 1
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 286 PUCCINIA. but I have found on Arrhenatherum on many occasions teleutospores and uredospores whicli seem to be identical with those of this species, though the former are, in my specimens, often irregularly three- or four-celled. Distribution : Central and Northern Europe, Turkestan. 137. Puccinia paliformis Fckl. Puccinia paliformis Fckl. Symb. Myc. p. 59, pi. ii. f. 17. Plowr. Ured. p. 203. Sacc. Syll. vii. 731. Sydow, Monogr. i. 759, f. 534. Fischer, Ured. Schweiz, p. 264, f. 200. Teleutospores. Sori on t Stock Photo
RMRE372F–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 286 PUCCINIA. but I have found on Arrhenatherum on many occasions teleutospores and uredospores whicli seem to be identical with those of this species, though the former are, in my specimens, often irregularly three- or four-celled. Distribution : Central and Northern Europe, Turkestan. 137. Puccinia paliformis Fckl. Puccinia paliformis Fckl. Symb. Myc. p. 59, pi. ii. f. 17. Plowr. Ured. p. 203. Sacc. Syll. vii. 731. Sydow, Monogr. i. 759, f. 534. Fischer, Ured. Schweiz, p. 264, f. 200. Teleutospores. Sori on t
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 158 PUCCINIA. Pig. 109. P. major. Te leutospore, on G. palu Uredospores. Sori amphigenous, solitary, minute, cinnamon; spores subglobose to ovoid, distinctly echinulate, brownish, 24—30 x 21— 26/x. Teleutospores. Sori chiefly hypo- phyllous, similar, but blackish-brown, standing singly, scattered over nearly the whole leaf-surface; spores ellipsoid to ovoid, rounded at both ends, not thickened above, hardly constricted, very delicately verruculose, chestnut- (Zosa; a, seeidia on leaf of r, oo ao v, oo oa . '' s Stock Photo
RMRE37RW–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 158 PUCCINIA. Pig. 109. P. major. Te leutospore, on G. palu Uredospores. Sori amphigenous, solitary, minute, cinnamon; spores subglobose to ovoid, distinctly echinulate, brownish, 24—30 x 21— 26/x. Teleutospores. Sori chiefly hypo- phyllous, similar, but blackish-brown, standing singly, scattered over nearly the whole leaf-surface; spores ellipsoid to ovoid, rounded at both ends, not thickened above, hardly constricted, very delicately verruculose, chestnut- (Zosa; a, seeidia on leaf of r, oo ao v, oo oa . '' s
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. PHRAGMIDIUM 297 7. Phragmidium Rubi Wint. Puccinia mucronata var. Rubi Pers. Disp. Meth. p. 38. Phragmidiv.m Rubi Wint. Pilze, p. 230. Plowr. Ured. p. 224. Fischer, Ured. Schweiz, p. 418, f. 290. Saco. Syll. vii. 745 p.p. Sydow, Monogr. iii. 141. Spermogones. Epiphyllous, in minute clusters. JEcidiospores. CEBomata hypophyllous, roundish, or on the nerves elongated, often in little groups,surrounded byclavate para- physes; spores resembling those of P violaceum. Sori hypophyl- spores smaller violaceum. Sori sma Stock Photo
RMRE371C–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. PHRAGMIDIUM 297 7. Phragmidium Rubi Wint. Puccinia mucronata var. Rubi Pers. Disp. Meth. p. 38. Phragmidiv.m Rubi Wint. Pilze, p. 230. Plowr. Ured. p. 224. Fischer, Ured. Schweiz, p. 418, f. 290. Saco. Syll. vii. 745 p.p. Sydow, Monogr. iii. 141. Spermogones. Epiphyllous, in minute clusters. JEcidiospores. CEBomata hypophyllous, roundish, or on the nerves elongated, often in little groups,surrounded byclavate para- physes; spores resembling those of P violaceum. Sori hypophyl- spores smaller violaceum. Sori sma
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON POLYGONACEjE 227 seen no British specimens but those collected at Mar Lodge and Braemar, which are described above ; the spores of these agree with those of a specimen on Pol. viviparum issued by Fuckel (see Symb. Myc. p. 57). It is a purely Alpine species. 97. Puccinia Polygoni-amphibii Pers. JScidium Oeranii DC. ; Oooke, Handb. p. 543 ; Micr. Fung. p. 199 p.p.(?). jE. sanguinolentum Lindr. Myk. Notiz. in Bot. Notis. 1900, p. 241. Uredo Polygonorum DC. ; Grev. Sc. Cr. Fl. pi. 80. Trichobasis Polygonorum Ber Stock Photo
RMRE379J–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON POLYGONACEjE 227 seen no British specimens but those collected at Mar Lodge and Braemar, which are described above ; the spores of these agree with those of a specimen on Pol. viviparum issued by Fuckel (see Symb. Myc. p. 57). It is a purely Alpine species. 97. Puccinia Polygoni-amphibii Pers. JScidium Oeranii DC. ; Oooke, Handb. p. 543 ; Micr. Fung. p. 199 p.p.(?). jE. sanguinolentum Lindr. Myk. Notiz. in Bot. Notis. 1900, p. 241. Uredo Polygonorum DC. ; Grev. Sc. Cr. Fl. pi. 80. Trichobasis Polygonorum Ber
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 90 UROMYCES have occurred for many years consecutively on Thrift in my garden, I have never noticed the gecidia ; the uredospores last through the winter on the evergreen loaves, and reproduce the fungus about June ; teleuto- spores are rather scarce. Distribution : Central and North-Western Europe. 5. Uromyces Trifolii Lev. Puccinia Trifolii Hedw. f. in DC. Flor. fr. ii. 225. Oromyces Trifolii Lev. Ann. Sci. Nat. ser. 3, viii. 371. Plowr. Ured. p. 124 p.p. Sacc. Syll. vii. 534 p.p. Sydow, Monogr. ii. 132. Fisc Stock Photo
RMRE3873–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 90 UROMYCES have occurred for many years consecutively on Thrift in my garden, I have never noticed the gecidia ; the uredospores last through the winter on the evergreen loaves, and reproduce the fungus about June ; teleuto- spores are rather scarce. Distribution : Central and North-Western Europe. 5. Uromyces Trifolii Lev. Puccinia Trifolii Hedw. f. in DC. Flor. fr. ii. 225. Oromyces Trifolii Lev. Ann. Sci. Nat. ser. 3, viii. 371. Plowr. Ured. p. 124 p.p. Sacc. Syll. vii. 534 p.p. Sydow, Monogr. ii. 132. Fisc
. Elementary botany. Botany. Germinating uredospnre ' wheat rust. (After Warshal Ward.l V^. 22 1. Gerrn tube entering the :af tliruugh a stoma.. Fii^j. 222. rcluutiispoiii g i: r m i Ihi^, Ini riling promy- F igb. !-'4. FiK'. 2 3,. Protiiyceliiim of p;er- niinatiiig tLlcvitosp .le forming sporidia. Puccinia gramini> w ! i-1 -' Germinating sporidia entering leal Lil barberiy by myccliiini. 1 Ater Marshall-Ward.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may no Stock Photo
RMRE2N39–. Elementary botany. Botany. Germinating uredospnre ' wheat rust. (After Warshal Ward.l V^. 22 1. Gerrn tube entering the :af tliruugh a stoma.. Fii^j. 222. rcluutiispoiii g i: r m i Ihi^, Ini riling promy- F igb. !-'4. FiK'. 2 3,. Protiiyceliiim of p;er- niinatiiig tLlcvitosp .le forming sporidia. Puccinia gramini> w ! i-1 -' Germinating sporidia entering leal Lil barberiy by myccliiini. 1 Ater Marshall-Ward.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may no
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 154 PUCCINIA 28. Puccinia Taraxaci P],owr. Puccinia Phaseoli var. Taraxaci Eebent. Fl. Neomaroh. p. 356. P. variabilis Grev. ; Cooke, Handb. p. 500; Micr. Fung. p. 207 p.p. P. Taraxaci Plowr. Ured. p. 186. Sacc. Syll. ix. 305. Sydow, Monogr. i. 164. Fischer, Ured. Schweiz, p. 226, f. 178. Spermogones. In little yellow roundish clusters. Vredospores. Sori amphigenous, with or without spots, scattered, minute, sometimes confluent and larger, roundish or oblong, pulverulent, brown; spores glo- bose to ovate, echin Stock Photo
RMRE37TW–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 154 PUCCINIA 28. Puccinia Taraxaci P],owr. Puccinia Phaseoli var. Taraxaci Eebent. Fl. Neomaroh. p. 356. P. variabilis Grev. ; Cooke, Handb. p. 500; Micr. Fung. p. 207 p.p. P. Taraxaci Plowr. Ured. p. 186. Sacc. Syll. ix. 305. Sydow, Monogr. i. 164. Fischer, Ured. Schweiz, p. 226, f. 178. Spermogones. In little yellow roundish clusters. Vredospores. Sori amphigenous, with or without spots, scattered, minute, sometimes confluent and larger, roundish or oblong, pulverulent, brown; spores glo- bose to ovate, echin
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 196 PUCCINIA Semadeni showed that the spores from A. silvestris infected M. odorata readily (Centralbl. f. Bakt. pt. 2, xiii. 217â9), but whether the form on G. temvlum belongs to the same species (or is a biological race of it) seems at present to be undetermined. Distribution : Central and Northern Europe, Siberia. 68. Puccinia Conii Fckl. Uredo Conii Strauss in Wetter. Ann. ii. 96. Trichohasis Conii Cooke, Micr. Fung. p. 225. T. Umhellatarum L^v. ; Cooke, Micr. Fung. p. 225 p.p. Puccinia Conii Fckl. Symb. My Stock Photo
RMRE37EX–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 196 PUCCINIA Semadeni showed that the spores from A. silvestris infected M. odorata readily (Centralbl. f. Bakt. pt. 2, xiii. 217â9), but whether the form on G. temvlum belongs to the same species (or is a biological race of it) seems at present to be undetermined. Distribution : Central and Northern Europe, Siberia. 68. Puccinia Conii Fckl. Uredo Conii Strauss in Wetter. Ann. ii. 96. Trichohasis Conii Cooke, Micr. Fung. p. 225. T. Umhellatarum L^v. ; Cooke, Micr. Fung. p. 225 p.p. Puccinia Conii Fckl. Symb. My
. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 377. Fio. »73> -Cross-section of aecia of P. asparagi. After Smith. P. bullata (Pers.) Schr. is a brachy-puccinia which is autoecious on celery, parsley, dill and other Timbellifers. P. apn (Wallr.) Gda. abo occurs in its uredinial and telial stages on celery .- P. castagnei Thiim is recorded for celery in France. P. allii (D. C.) Rud. is a hemi-type on cultivated onions. P. porri Sow. is an autoecious rust which is sometimes- de- structive to onions in Europe. P. endiviae Pass.^^^ occurs on- Stock Photo
RMRDE60M–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 377. Fio. »73> -Cross-section of aecia of P. asparagi. After Smith. P. bullata (Pers.) Schr. is a brachy-puccinia which is autoecious on celery, parsley, dill and other Timbellifers. P. apn (Wallr.) Gda. abo occurs in its uredinial and telial stages on celery .- P. castagnei Thiim is recorded for celery in France. P. allii (D. C.) Rud. is a hemi-type on cultivated onions. P. porri Sow. is an autoecious rust which is sometimes- de- structive to onions in Europe. P. endiviae Pass.^^^ occurs on-
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 144 PUCCINIA 18. Puccinia Cnici-oleracei Pers. Puccinia Cniei-oleraoei Pers. in Desm. Cat. des PI. omis., p. 24. Sydow, Monogr. i. 58, pi. 3, f. 47. Fischer, Ured. Schweiz, p. 292, 594, f. 213. P. Cardui Plowr. Ured. p. 216. Teleutospores. Sori hypophyllous, on discoloured roundish spots, minute, circinate, but mostly confluent in large patches as much as 5 mm. diam. which remain for a long time covered by the epidermis, compact, blackish-brown; spores clavate or subfusiform, rounded or rarely somewhat conical Stock Photo
RMRE37XE–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 144 PUCCINIA 18. Puccinia Cnici-oleracei Pers. Puccinia Cniei-oleraoei Pers. in Desm. Cat. des PI. omis., p. 24. Sydow, Monogr. i. 58, pi. 3, f. 47. Fischer, Ured. Schweiz, p. 292, 594, f. 213. P. Cardui Plowr. Ured. p. 216. Teleutospores. Sori hypophyllous, on discoloured roundish spots, minute, circinate, but mostly confluent in large patches as much as 5 mm. diam. which remain for a long time covered by the epidermis, compact, blackish-brown; spores clavate or subfusiform, rounded or rarely somewhat conical
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 214 PUCCINIA towards the tip of each aifeoted leaf, on the upper side, Fischer records it on ;S'. aizoon and S. elatior. Distribution : Switzerland, Austria. 85. Puccinia Chrysosplenii Grev. Piicoinia Chrysosplenii Grev. in Engl. Flora, v. 367. Cooke, Handb. p. 506; Micr. Fnng. p. 210. Plowr. Ured. p. 211. Sacc. Syll. vii, 685. Sydow, Monogr. i. 493. Fischer, Ured. Sohweiz, p. 318, f. 231. Teleutospores. Sori. Fig. 162. P. Chrysosplenii. Teleutospores; a, the form fragilipes. amphigenous, but generally hypo- ph Stock Photo
RMRE37BR–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 214 PUCCINIA towards the tip of each aifeoted leaf, on the upper side, Fischer records it on ;S'. aizoon and S. elatior. Distribution : Switzerland, Austria. 85. Puccinia Chrysosplenii Grev. Piicoinia Chrysosplenii Grev. in Engl. Flora, v. 367. Cooke, Handb. p. 506; Micr. Fnng. p. 210. Plowr. Ured. p. 211. Sacc. Syll. vii, 685. Sydow, Monogr. i. 493. Fischer, Ured. Sohweiz, p. 318, f. 231. Teleutospores. Sori. Fig. 162. P. Chrysosplenii. Teleutospores; a, the form fragilipes. amphigenous, but generally hypo- ph
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. Pig. 122. P. caulincola. Teleutospores and mesospore. 45. Puccinia Glechomatis DC. F. Glechomatis DO. Encycl. viii. 245. Cooke, Handb. p. 496 ; Mior. Fung. p. 204, pi. 4, f. 73—4. Plowr. Ured. p. 214. Sacc. Syll. vii. 688. Sydow, Monogr. i. 277. Fischer, Ured. Schweiz, p. 327, f. 239. Teleutospores. Sori hypophyllous or on the petioles, on brownish spots or sometimes none, -^—1 mm. diam., roundish, solitary and scattered, or more often subcon- fluent into rounded clusters as much as 4 mm. diam., on the stem and Stock Photo
RMRE37MW–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. Pig. 122. P. caulincola. Teleutospores and mesospore. 45. Puccinia Glechomatis DC. F. Glechomatis DO. Encycl. viii. 245. Cooke, Handb. p. 496 ; Mior. Fung. p. 204, pi. 4, f. 73—4. Plowr. Ured. p. 214. Sacc. Syll. vii. 688. Sydow, Monogr. i. 277. Fischer, Ured. Schweiz, p. 327, f. 239. Teleutospores. Sori hypophyllous or on the petioles, on brownish spots or sometimes none, -^—1 mm. diam., roundish, solitary and scattered, or more often subcon- fluent into rounded clusters as much as 4 mm. diam., on the stem and
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON LABIATiE 175 met with, viz. spores with three or more cells variously arranged. See Grove, Gardener's Chronicle, xxiv (1885), p. 180, f. 38. The mycelium is probably perennial. Distribution : Central and Western Europe. 47. Puccinia annularis Schlecht. Uredo annularis Strauss in "Wetter. Ann. ii. 106. Puccinia annularis Schlecht. Flor. Berol. ii. 132 (1824). Plowr. Ured. p. 217. Saoc. Syll. vii. 689. Sydow, Monogr. i. 300. Fischer, Ured. Schweiz, p. 329, f. 240. P. Scorodoniae Link. Spec. ii. 72 (1825). Stock Photo
RMRE37M0–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON LABIATiE 175 met with, viz. spores with three or more cells variously arranged. See Grove, Gardener's Chronicle, xxiv (1885), p. 180, f. 38. The mycelium is probably perennial. Distribution : Central and Western Europe. 47. Puccinia annularis Schlecht. Uredo annularis Strauss in "Wetter. Ann. ii. 106. Puccinia annularis Schlecht. Flor. Berol. ii. 132 (1824). Plowr. Ured. p. 217. Saoc. Syll. vii. 689. Sydow, Monogr. i. 300. Fischer, Ured. Schweiz, p. 329, f. 240. P. Scorodoniae Link. Spec. ii. 72 (1825).
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 134 PUCCINIA 6. Puccinia Absinthii DC. Trichohads Artemisiae Berk. ; Cooke, Micr. Fung. p. 223. Puccinia Discoidearum Link ; Cooke, Micr. Fung. p. 206. P. TaTiaceti Plowr. Ured. p. 189 p.p. Saoc. Syll. vii. 637 p.p. P. Absinthii DC. Flor. fr. vi. 56. Sydow, Monogr. i. 11. Fischer, Ured. Schweiz, p. 188, f. 148. Uredospores. Sori generally hypophyllous, on yellowish- brown or indeterminate spots, scattered or aggregated, not confluent, minute, roundish, pulverulent, pale-brown; spores globose to ovoid, echinulat Stock Photo
RMRE380B–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 134 PUCCINIA 6. Puccinia Absinthii DC. Trichohads Artemisiae Berk. ; Cooke, Micr. Fung. p. 223. Puccinia Discoidearum Link ; Cooke, Micr. Fung. p. 206. P. TaTiaceti Plowr. Ured. p. 189 p.p. Saoc. Syll. vii. 637 p.p. P. Absinthii DC. Flor. fr. vi. 56. Sydow, Monogr. i. 11. Fischer, Ured. Schweiz, p. 188, f. 148. Uredospores. Sori generally hypophyllous, on yellowish- brown or indeterminate spots, scattered or aggregated, not confluent, minute, roundish, pulverulent, pale-brown; spores globose to ovoid, echinulat
. The essentials of botany. Botany. 170 BOTANY. parasite, and at length burst through the epidermis (Fig. 94, A and I). The conidia quickly drop out and are car-. FiG. 94.—Wheat-rust (Puccinia graminis). f, a cross-section of a Barberry- leaf through a mass of Cluster-cups; a, o, a, cups opened and shedding their conidia; p, and A, above, cups not yet opened; so, ap, spermogones which pro- duce spermatia, whose function is not known. U, three Red-rust spores, ur, on stalks; f, a Black-rust spore. ///, a mass of Bla<!k-rust spores bursting through the epidermis, e, of a leaf. All highly magn Stock Photo
RMRDWBP6–. The essentials of botany. Botany. 170 BOTANY. parasite, and at length burst through the epidermis (Fig. 94, A and I). The conidia quickly drop out and are car-. FiG. 94.—Wheat-rust (Puccinia graminis). f, a cross-section of a Barberry- leaf through a mass of Cluster-cups; a, o, a, cups opened and shedding their conidia; p, and A, above, cups not yet opened; so, ap, spermogones which pro- duce spermatia, whose function is not known. U, three Red-rust spores, ur, on stalks; f, a Black-rust spore. ///, a mass of Bla<!k-rust spores bursting through the epidermis, e, of a leaf. All highly magn
. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 5i8 SPECIAL PLANT PATHOLOGY. Fig. 187.—Hollyhock rust, Puccinia malvacearum. i, Typic mature telio- spore; 2-6, different stages in growth of promycelium (basidium); 7, forked promy- celium; 8, basidium dividing into 4 cells; 9, basidium resembling a germ tube; 10—12, cells breaking apart; 13-16, germination of promycelial cells; 17, empty cell; 18, mature basidiospores; 19, 20, same in germination; 25, 26, formation of chlamydo- spore-like bodies in old promycelia. {After Taubenhaus, J Stock Photo
RMRDE1DY–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 5i8 SPECIAL PLANT PATHOLOGY. Fig. 187.—Hollyhock rust, Puccinia malvacearum. i, Typic mature telio- spore; 2-6, different stages in growth of promycelium (basidium); 7, forked promy- celium; 8, basidium dividing into 4 cells; 9, basidium resembling a germ tube; 10—12, cells breaking apart; 13-16, germination of promycelial cells; 17, empty cell; 18, mature basidiospores; 19, 20, same in germination; 25, 26, formation of chlamydo- spore-like bodies in old promycelia. {After Taubenhaus, J
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON CYPERACE^ 245 111. Puccinia silvatica Schrot. ^ddium Taraxaci K. et S. Myk. Heft. i. 80. Puccinia silvatica Schrot. in Cohn, Beitr. iii. 68. Plowr. Ured. p. 172. Sacc. Syll. vii. 627. Sydow, Monogr. i. 656. Fischer, Ured. Schweiz, p. 289, f. 211. Spermogones. In little clusters, yellowish. ^cidiospores. vEcidia hypophyllous or amphigenous, on roundish yellow or brown spots, in crowded clusters 2—5 mm. wide, rarely solitary, occa- sionally on the peduncle which they distort, cup-shaped, with torn whitish revo Stock Photo
RMRE377W–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON CYPERACE^ 245 111. Puccinia silvatica Schrot. ^ddium Taraxaci K. et S. Myk. Heft. i. 80. Puccinia silvatica Schrot. in Cohn, Beitr. iii. 68. Plowr. Ured. p. 172. Sacc. Syll. vii. 627. Sydow, Monogr. i. 656. Fischer, Ured. Schweiz, p. 289, f. 211. Spermogones. In little clusters, yellowish. ^cidiospores. vEcidia hypophyllous or amphigenous, on roundish yellow or brown spots, in crowded clusters 2—5 mm. wide, rarely solitary, occa- sionally on the peduncle which they distort, cup-shaped, with torn whitish revo
. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 202 MYCOLOGY repens, Elymus arenarius, Bromus secalinus and others; (3) f. sp. avenm on oats and Avena elatior, Dactylis glomerata, Alopecurus praten- sis, Milium efusum, etc.; (4) f. sp. pocB on Poa compressa and P. praten- sis; (s) f. sp. airce on Aira cmspitosa and A. hottnica; (6) f. sp. agrosHs on Agrostis canina and A. stolonifera. Brown Rust of Rye, Puccinia dispersa, with its cluster cups on Anchusa arvensis and A. officinalis. Crown Rust of Oats, Puccinia coronifera, with its a Stock Photo
RMRDE2CK–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 202 MYCOLOGY repens, Elymus arenarius, Bromus secalinus and others; (3) f. sp. avenm on oats and Avena elatior, Dactylis glomerata, Alopecurus praten- sis, Milium efusum, etc.; (4) f. sp. pocB on Poa compressa and P. praten- sis; (s) f. sp. airce on Aira cmspitosa and A. hottnica; (6) f. sp. agrosHs on Agrostis canina and A. stolonifera. Brown Rust of Rye, Puccinia dispersa, with its cluster cups on Anchusa arvensis and A. officinalis. Crown Rust of Oats, Puccinia coronifera, with its a
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 290 PHEAGMIDIUM character, as well as the rigid middle lamina and the position of the germ-pores, distinguishes the genus from all the neigh- bouring ones. 1. Phragmidium Frag^ariastri Schrot. Puccinia Fragariastri DC. Flor. fr. vi. 55. Phragmidium, ohtusum Link, Sp. PL ii. 84 p.p. Cooke, Handb. p. 491 ; Micr. Fung. p. 201 (as ohtusatum). P. Fragariastri Schrot. Flor. Schles. iii. 351. Plowr. Ured. p. 220. Fischer, Ured. Sohweiz, p. 412, f. 287. • Sacc. Syll. vii. 742. Sydow, Monogr. iii. 101, f. 45. Spermogone Stock Photo
RMRE3728–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 290 PHEAGMIDIUM character, as well as the rigid middle lamina and the position of the germ-pores, distinguishes the genus from all the neigh- bouring ones. 1. Phragmidium Frag^ariastri Schrot. Puccinia Fragariastri DC. Flor. fr. vi. 55. Phragmidium, ohtusum Link, Sp. PL ii. 84 p.p. Cooke, Handb. p. 491 ; Micr. Fung. p. 201 (as ohtusatum). P. Fragariastri Schrot. Flor. Schles. iii. 351. Plowr. Ured. p. 220. Fischer, Ured. Sohweiz, p. 412, f. 287. • Sacc. Syll. vii. 742. Sydow, Monogr. iii. 101, f. 45. Spermogone
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON COMPOSITE 139 12. Puccinia tinctorise Magn. Puccinia Compositarmn var. Serrattdae Cooke, Exsicc. no. 33. P. tinctoriae Magn. in Abhand. Nat. Qesell. Nurnberg, 1900, xiii. 37 ; Ber. deutsch. Bet. Gesell. 1893, pi. 21, f. 27—8. Sydow, Monogr. i. 150, f. 127. Uredospores. Sori amphigenous, on inconspicuous pallid spots, scattered, minute, roundish, pulverulent, dark-cinnamon; spores globose to ellipsoid, echinulate, brown, 24—40 x 19—26/j.; epispore with two germ-pores towards the summit.. Fig. 91. P. tinctoria Stock Photo
RMRE37YC–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON COMPOSITE 139 12. Puccinia tinctorise Magn. Puccinia Compositarmn var. Serrattdae Cooke, Exsicc. no. 33. P. tinctoriae Magn. in Abhand. Nat. Qesell. Nurnberg, 1900, xiii. 37 ; Ber. deutsch. Bet. Gesell. 1893, pi. 21, f. 27—8. Sydow, Monogr. i. 150, f. 127. Uredospores. Sori amphigenous, on inconspicuous pallid spots, scattered, minute, roundish, pulverulent, dark-cinnamon; spores globose to ellipsoid, echinulate, brown, 24—40 x 19—26/j.; epispore with two germ-pores towards the summit.. Fig. 91. P. tinctoria
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 208 PUCCINIA P. Pruni DC. Flor. fr. ii. 222 (1805). Plowr. Ured. p. 192. Sacc. Syll. vii. 648. P. Prunorum Link, Sp. PI. ii. 82 (1825). Cooke, Handb. p. 507 ; Micr. Fung. p. 211 ; Grevillea, iii. pi. 49, f. 11. Tranzschelia punctata Arthur, North Amerio. Fl. vii. 151. Spermogones. Amphigenous, scattered, brown or blackish, very shallow, punctiform. JEcidiospores. ^cidia hypophyllous, scattered over the whole surface, flat, with a broad revolute margin which is torn into few (3—5) lobes ; spores roundish, pale y Stock Photo
RMRE37CT–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 208 PUCCINIA P. Pruni DC. Flor. fr. ii. 222 (1805). Plowr. Ured. p. 192. Sacc. Syll. vii. 648. P. Prunorum Link, Sp. PI. ii. 82 (1825). Cooke, Handb. p. 507 ; Micr. Fung. p. 211 ; Grevillea, iii. pi. 49, f. 11. Tranzschelia punctata Arthur, North Amerio. Fl. vii. 151. Spermogones. Amphigenous, scattered, brown or blackish, very shallow, punctiform. JEcidiospores. ^cidia hypophyllous, scattered over the whole surface, flat, with a broad revolute margin which is torn into few (3—5) lobes ; spores roundish, pale y
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 186 PUCCINIA I find the septum of the teleutospores almost always comparatively broad and dark, far more so than in the majority of Puccinias. Distribution : Europe generally. 58. Puccinia Bulbocastani Fckl. JEoidium Btdhocastani Cumino, Fung. Vail. Pis. 1804—5. JE. Bunii DC. Syn. p. 51. Cooke, Handb. p. 540 p.p. ; Micr. Pung. p. 196. Plowr. Ured. p. 270 (?). Puccinia Bulbocastani Fckl. Symb. Myc. p. 52. Cooke, Micr. Fung. p. 209. Sydow, Monogr. i. 363. Fischer, Ured. Schweiz, p. 133, f. 100. Spermogones. Few, Stock Photo
RMRE37HH–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 186 PUCCINIA I find the septum of the teleutospores almost always comparatively broad and dark, far more so than in the majority of Puccinias. Distribution : Europe generally. 58. Puccinia Bulbocastani Fckl. JEoidium Btdhocastani Cumino, Fung. Vail. Pis. 1804—5. JE. Bunii DC. Syn. p. 51. Cooke, Handb. p. 540 p.p. ; Micr. Pung. p. 196. Plowr. Ured. p. 270 (?). Puccinia Bulbocastani Fckl. Symb. Myc. p. 52. Cooke, Micr. Fung. p. 209. Sydow, Monogr. i. 363. Fischer, Ured. Schweiz, p. 133, f. 100. Spermogones. Few,
. The essentials of botany. Botany. 170 BOTANY. parasite, and at length burst through the epidermis (Fig. 94, A and I). The oonidia quickly drop out and are car-. FiG. 94.—Wheat-nist (Puccinia graminis). I, a cross-section of a Barberry- leaf through a mass of Cluster-cups; a, a, a, cups opened and slieddingr their conidia; p, and A, above, cu^s not yet opened; sp, sp, spermogones which pro- duce spermatia, whose function is not Icnown. ii, three Red-rust spores, ttr, on stalks: t, a Black-rust spore. 7/J, a mass of Black-rust spores bursting through the epidermis, e, of a leaf. All highly mag Stock Photo
RMRDJGWJ–. The essentials of botany. Botany. 170 BOTANY. parasite, and at length burst through the epidermis (Fig. 94, A and I). The oonidia quickly drop out and are car-. FiG. 94.—Wheat-nist (Puccinia graminis). I, a cross-section of a Barberry- leaf through a mass of Cluster-cups; a, a, a, cups opened and slieddingr their conidia; p, and A, above, cu^s not yet opened; sp, sp, spermogones which pro- duce spermatia, whose function is not Icnown. ii, three Red-rust spores, ttr, on stalks: t, a Black-rust spore. 7/J, a mass of Black-rust spores bursting through the epidermis, e, of a leaf. All highly mag
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. Fig. 164. F. fusca. Teleutospores. Puccinia Calthae Link. JScidium Calthae Grev. Flor. Edin. p. 446. Cooke, Handb. p. 539 ; Micr. Fung. p. 196. Puccinia Calthae Link, Sp. Plant, ii. 79. Cooke, Handb. p. 504 ; Micr. Fung. p. 210. Plowr. Ured. p. 145. Sacc. Syll. vii. 602. Sydow, Monogr. i. 540. Fischer, Ured. Sohweiz, p. 310, f. 225. 8permogones. In little clusters, honey-coloured. jEcidiospores. ^cidia hypophyllous, in little clusters on roundish yellowish spots, or on the stems in elongated swellings, cup- sha Stock Photo
RMRE37B4–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. Fig. 164. F. fusca. Teleutospores. Puccinia Calthae Link. JScidium Calthae Grev. Flor. Edin. p. 446. Cooke, Handb. p. 539 ; Micr. Fung. p. 196. Puccinia Calthae Link, Sp. Plant, ii. 79. Cooke, Handb. p. 504 ; Micr. Fung. p. 210. Plowr. Ured. p. 145. Sacc. Syll. vii. 602. Sydow, Monogr. i. 540. Fischer, Ured. Sohweiz, p. 310, f. 225. 8permogones. In little clusters, honey-coloured. jEcidiospores. ^cidia hypophyllous, in little clusters on roundish yellowish spots, or on the stems in elongated swellings, cup- sha
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 232 pucciNiA 101. Puccinia Schroeteri Pass. Pucdnia Schroeteri- Pass. Nuov. Giorn. Bot. Ital. vii. 255. W. G. Smith, Gard. Chron. 1889, v. 725, f. 118. WoUey-Dod, Journ. Roy. Hort. Soo. xii. p. liii.. Plowr. Trans. Brit. Myc. Soc. i. 57. Sacc. Syll. vii. 732. Sydow, Monogr. i. 608. Fischer, Ured. Sohweiz, p. Vs, f. 59. Teleutospores. Sori ampliigenous, chiefly epiphyllous, large, oblong or elliptic, surrounded by a brownish-violet discoloration, 1—3 mm. long, solitary or in small clusters, long covered or half Stock Photo
RMRE3796–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 232 pucciNiA 101. Puccinia Schroeteri Pass. Pucdnia Schroeteri- Pass. Nuov. Giorn. Bot. Ital. vii. 255. W. G. Smith, Gard. Chron. 1889, v. 725, f. 118. WoUey-Dod, Journ. Roy. Hort. Soo. xii. p. liii.. Plowr. Trans. Brit. Myc. Soc. i. 57. Sacc. Syll. vii. 732. Sydow, Monogr. i. 608. Fischer, Ured. Sohweiz, p. Vs, f. 59. Teleutospores. Sori ampliigenous, chiefly epiphyllous, large, oblong or elliptic, surrounded by a brownish-violet discoloration, 1—3 mm. long, solitary or in small clusters, long covered or half
. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. PROTOBASIDIOMYCETES 403 X. ASPARAGUS RUST Puccinia Asparagi De C. Halsted, B. D. The Asparagus Rust; Its Treatment and Natural Enemies. N. J. Agl. Exp. Sta. Built. 129: 1-20. pi. 1-2. 1898. Halsted, B. D. Experiments with Asparagus Rust. N. J. Agl. Exp. Sta. Rept. 11: 343-347. 1898. Sirrine, F. A. Spraying for Asparagus Rust. N. Y. Agl. Exp. Sta. Built. 188: 122-166. 1900. Smith, Ralph E. The Water-Relation of Puccinia Asparagi. Bot. Gaz. 38: 19-43- fig*- 1-21- I9°4- Smith, Ralph E Stock Photo
RMRDJ5XX–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. PROTOBASIDIOMYCETES 403 X. ASPARAGUS RUST Puccinia Asparagi De C. Halsted, B. D. The Asparagus Rust; Its Treatment and Natural Enemies. N. J. Agl. Exp. Sta. Built. 129: 1-20. pi. 1-2. 1898. Halsted, B. D. Experiments with Asparagus Rust. N. J. Agl. Exp. Sta. Rept. 11: 343-347. 1898. Sirrine, F. A. Spraying for Asparagus Rust. N. Y. Agl. Exp. Sta. Built. 188: 122-166. 1900. Smith, Ralph E. The Water-Relation of Puccinia Asparagi. Bot. Gaz. 38: 19-43- fig*- 1-21- I9°4- Smith, Ralph E
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON GRAMINEiE 257 120. Puccinia Festucs Plowr. ^cidium Periclymeni Schum. Enum. PI. Sail. ii. 22.'3. Cooke, Micr. Fung. p. 196. Plowr. Ured. p. 264. ^S. orassum. var. Periclymeni Cooke, Handb. p. 539. Puccinia Festiccae Plowr. Gard. Chron. 1890, ii. 42, 139, and 1891, i. 460 ; Grevillea, xxi. 109. Sacc. Syll. xi. 194. Sydow, Monogr. i. 752. Fischer, Ured. Schweiz, p. 377, f. 272. MeAlpine, Rusts of Australia, p. 119, f. 13. Spermogones. In'small clusters, honey-coloured. ^cidiospores. ^cidia hypophyllous, on rou Stock Photo
RMRE1WR3–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON GRAMINEiE 257 120. Puccinia Festucs Plowr. ^cidium Periclymeni Schum. Enum. PI. Sail. ii. 22.'3. Cooke, Micr. Fung. p. 196. Plowr. Ured. p. 264. ^S. orassum. var. Periclymeni Cooke, Handb. p. 539. Puccinia Festiccae Plowr. Gard. Chron. 1890, ii. 42, 139, and 1891, i. 460 ; Grevillea, xxi. 109. Sacc. Syll. xi. 194. Sydow, Monogr. i. 752. Fischer, Ured. Schweiz, p. 377, f. 272. MeAlpine, Rusts of Australia, p. 119, f. 13. Spermogones. In'small clusters, honey-coloured. ^cidiospores. ^cidia hypophyllous, on rou
. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. RUST FUNGI 203 Phalaris arnudituicea; (3) f. sp. agroslis on Agrostis mdgaris and A, stolonifera. Yellow Rust of Wheat, Puccinia glumarum, without any known aecial stage. It has according to Eriksson the following specialized forms: (1) f. sp. tritici on wheat; (2) f. sp. secalis on rye; (3) f. sp. hordei on barley; (4) f. sp. Elymi on dymus arenarius; (5) f. sp. agropyri on couch grass, Agropyron repens.. Fig. 72.—Hollyhock rust. Puccinia mals/acearum. {Nantucket, August 19, 1915.) Bro Stock Photo
RMRDE2C8–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. RUST FUNGI 203 Phalaris arnudituicea; (3) f. sp. agroslis on Agrostis mdgaris and A, stolonifera. Yellow Rust of Wheat, Puccinia glumarum, without any known aecial stage. It has according to Eriksson the following specialized forms: (1) f. sp. tritici on wheat; (2) f. sp. secalis on rye; (3) f. sp. hordei on barley; (4) f. sp. Elymi on dymus arenarius; (5) f. sp. agropyri on couch grass, Agropyron repens.. Fig. 72.—Hollyhock rust. Puccinia mals/acearum. {Nantucket, August 19, 1915.) Bro
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON COMPOSITE 135 7. Puccinia Tanaceti DC. Pucoinia. Tanaceti DC. Flor. fr. ii. 222. Cooke, Micr. Fung. p. 207. Plowr. Ured. p. 189 p.p. Sacc. Syll. vii. 657. Sydow, Monogr. i. 161. Fischer, Ured. Schweiz, p. 185, f. 146. P. Diacoidearum Link ; Cooke, Handb. p. 499 p.p. Ui-edospores. Sori amphigenous, scattered, minute, not confluent, orbicular, pallid-brown; spores subglobose or broadly ellipsoid, echinulate, yellow-brown, 25—32 x 16—25 fi, with three germ-pores, each covered by a convex colourless cap. Teleuto Stock Photo
RMRE3808–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON COMPOSITE 135 7. Puccinia Tanaceti DC. Pucoinia. Tanaceti DC. Flor. fr. ii. 222. Cooke, Micr. Fung. p. 207. Plowr. Ured. p. 189 p.p. Sacc. Syll. vii. 657. Sydow, Monogr. i. 161. Fischer, Ured. Schweiz, p. 185, f. 146. P. Diacoidearum Link ; Cooke, Handb. p. 499 p.p. Ui-edospores. Sori amphigenous, scattered, minute, not confluent, orbicular, pallid-brown; spores subglobose or broadly ellipsoid, echinulate, yellow-brown, 25—32 x 16—25 fi, with three germ-pores, each covered by a convex colourless cap. Teleuto
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON COMPOSITjE 155 29. Puccinia Sonchi Bob. Mcidiitm Sonchi Johnst. ; Plowr. Ured. p. 266. Puccinia Sonchi Rob. iu Desm. Ann. Sci. Nat. ser. 3, xi. 274. Grove, Sci. Gossip, 1885, p. 9, f. 6—9. Plowr. Ured. p. 196. Sacc. Syll. vii. 638. Sydow, Monogr. i. 1.54. [Spermogones. Obtained artificially on S. arvensis by Tranz- schel.] Uredospores. Sori generally hypophyllous, on the stem collected in small oblong patches 4—5 mm. long, on yellowish spots, scattered or gregarious, minute, at first covered by the epidermis Stock Photo
RMRE37TT–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON COMPOSITjE 155 29. Puccinia Sonchi Bob. Mcidiitm Sonchi Johnst. ; Plowr. Ured. p. 266. Puccinia Sonchi Rob. iu Desm. Ann. Sci. Nat. ser. 3, xi. 274. Grove, Sci. Gossip, 1885, p. 9, f. 6—9. Plowr. Ured. p. 196. Sacc. Syll. vii. 638. Sydow, Monogr. i. 1.54. [Spermogones. Obtained artificially on S. arvensis by Tranz- schel.] Uredospores. Sori generally hypophyllous, on the stem collected in small oblong patches 4—5 mm. long, on yellowish spots, scattered or gregarious, minute, at first covered by the epidermis
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON COMPOSITE 145 19. Puccinia obtegens Tul. Caeoma obtegens Link, Obs. ii. 27. Triohobasis suaveolens L^v.; Cooke, Handb. p. 530; Micr. Fung. p. 226, pi. vii. figs. 151—3. Puccinia obtegens Tul. Ann. Sci. Nat. ser. 4, ii. 87 (1854). Sydow, Monogr. i. 53. P. suaveolens Rost. Bot. Zeit. 1874, p. 556. Plowr. Ured. p. 182 p.p. Saco. Syll. vii. 633 p.p. Fischer, Ured. Schweiz, p. 219, f. 172. Spermogones. Chiefly hypophyllous, a few epiphyllous, crowded, covering the whole surface of the leaf, of a bright honey-yell Stock Photo
RMRE37X6–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON COMPOSITE 145 19. Puccinia obtegens Tul. Caeoma obtegens Link, Obs. ii. 27. Triohobasis suaveolens L^v.; Cooke, Handb. p. 530; Micr. Fung. p. 226, pi. vii. figs. 151—3. Puccinia obtegens Tul. Ann. Sci. Nat. ser. 4, ii. 87 (1854). Sydow, Monogr. i. 53. P. suaveolens Rost. Bot. Zeit. 1874, p. 556. Plowr. Ured. p. 182 p.p. Saco. Syll. vii. 633 p.p. Fischer, Ured. Schweiz, p. 219, f. 172. Spermogones. Chiefly hypophyllous, a few epiphyllous, crowded, covering the whole surface of the leaf, of a bright honey-yell
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 262 PUCCINIA (2) PucciNiA BROMINA Erikss. Fuccimabromina Erikss. I.e. p. 271, pi. xii, f. 12—17.. Sydow, Monogr. i. 712. McAlpine, Rusts of Australia, p. 116, pi. C, and fig. 28. P. Symphyti-Bromorvm F. Mull. Beihefte Bot. Ceutralbl. 1901, x. 201. Klebahn, I.e. p. 239. Fischer, Ured. Sohweiz, p. 359, f. 262. P. dispersa Erikss. ; Marshall Ward, Ann. Bot. 1902, xvi. 233 ; Annal. Mycol. 1903, p. 132. Freeman, Ann. Bot. ibid. p. 487. JEcidium Symphyti and JS. Pulmonariae Thiim. Sperynogones. Honey-coloured. jEcidi Stock Photo
RMRE1WPN–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 262 PUCCINIA (2) PucciNiA BROMINA Erikss. Fuccimabromina Erikss. I.e. p. 271, pi. xii, f. 12—17.. Sydow, Monogr. i. 712. McAlpine, Rusts of Australia, p. 116, pi. C, and fig. 28. P. Symphyti-Bromorvm F. Mull. Beihefte Bot. Ceutralbl. 1901, x. 201. Klebahn, I.e. p. 239. Fischer, Ured. Sohweiz, p. 359, f. 262. P. dispersa Erikss. ; Marshall Ward, Ann. Bot. 1902, xvi. 233 ; Annal. Mycol. 1903, p. 132. Freeman, Ann. Bot. ibid. p. 487. JEcidium Symphyti and JS. Pulmonariae Thiim. Sperynogones. Honey-coloured. jEcidi
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON UMBELLIFEBiE 197 69. Puccinia Smyrnii Corda. ^ddium Bunii var. Smyrnii-Olusatri DC. Flor. fr. vi. 96. Triohohasis Petroselini Berk. ; Cooke, Handb. p. 529 p.p. Puceinia Smyrnii Corda, Icon. iv. 18, f. 67 (1840). Cooke, Handb. p. 503 ; Micr. Fung. p. 209, pi. 3, f. 55—6. Plowr. Ured. p. 199. Saoc. SyU. vii. 670. P. Smyrnii-Olusatri Lindr. Faun, et Flor. fenn. xxii. no. 1, p. 9 (1902). Sydow, Monogr. i. 416. Spermogones. Epiphyllous, on sunken spots. jScidiospores. ^cidia hypophyllous or occasionally epi- phyl Stock Photo
RMRE37ER–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON UMBELLIFEBiE 197 69. Puccinia Smyrnii Corda. ^ddium Bunii var. Smyrnii-Olusatri DC. Flor. fr. vi. 96. Triohohasis Petroselini Berk. ; Cooke, Handb. p. 529 p.p. Puceinia Smyrnii Corda, Icon. iv. 18, f. 67 (1840). Cooke, Handb. p. 503 ; Micr. Fung. p. 209, pi. 3, f. 55—6. Plowr. Ured. p. 199. Saoc. SyU. vii. 670. P. Smyrnii-Olusatri Lindr. Faun, et Flor. fenn. xxii. no. 1, p. 9 (1902). Sydow, Monogr. i. 416. Spermogones. Epiphyllous, on sunken spots. jScidiospores. ^cidia hypophyllous or occasionally epi- phyl
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON VIOLA 201 Puccinia Violae DO. Flor. fr. vi. 62 (1815). Plowr. Ured. p. 152. Sydow, Monogr. i. 439. Saco. Syll. vii. 609. Fischer, Ured. Sohweiz, p. 139, f. 106. P. Violarum Link, Sp. Plant, ii. 80 (1824). Cooke, Handb. p. 504 ; Micr. Fung. p. 210; Grevillea, iii. pi. 49, f. 5, 10 a, h. Spermogones. Crowded in little clusters, yellowish. JEcidiospores. iEcidia on all the green parts of the host, on the leaves often forming swollen yellowish spots, generally in roundish, or irregularly expanded, groups, on the Stock Photo
RMRE37E3–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON VIOLA 201 Puccinia Violae DO. Flor. fr. vi. 62 (1815). Plowr. Ured. p. 152. Sydow, Monogr. i. 439. Saco. Syll. vii. 609. Fischer, Ured. Sohweiz, p. 139, f. 106. P. Violarum Link, Sp. Plant, ii. 80 (1824). Cooke, Handb. p. 504 ; Micr. Fung. p. 210; Grevillea, iii. pi. 49, f. 5, 10 a, h. Spermogones. Crowded in little clusters, yellowish. JEcidiospores. iEcidia on all the green parts of the host, on the leaves often forming swollen yellowish spots, generally in roundish, or irregularly expanded, groups, on the
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 222 PUCCINIA 92. Puccinia Behenis Otth. jEcidiimi Behenis DC. Flor. fr. vi. 94 p.p. Puccinia Behenis Otth, Mitth. Naturforsoh. Gesell. Bern (1870), p. 89. Fischer, Ured. Sohweiz, p. 136, f. 103. P. Silenes Sohrot. in "Winter, Pilze, p. 215 (1884). Cooke, Micr. Fung. p. 211. Plowr. Ured. p. 147. Saoc. Syll. vii. 605. Sydow, Monogr. i. 559. Spermogones. In little clusters, honey-coloured. JUcidiospores. ^cidia hypophyllous, on pallid-yellow spots, Fig. 170.. P. Behenis. a, Teleutospore and raesospore, on Sil Stock Photo
RMRE37A6–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 222 PUCCINIA 92. Puccinia Behenis Otth. jEcidiimi Behenis DC. Flor. fr. vi. 94 p.p. Puccinia Behenis Otth, Mitth. Naturforsoh. Gesell. Bern (1870), p. 89. Fischer, Ured. Sohweiz, p. 136, f. 103. P. Silenes Sohrot. in "Winter, Pilze, p. 215 (1884). Cooke, Micr. Fung. p. 211. Plowr. Ured. p. 147. Saoc. Syll. vii. 605. Sydow, Monogr. i. 559. Spermogones. In little clusters, honey-coloured. JUcidiospores. ^cidia hypophyllous, on pallid-yellow spots, Fig. 170.. P. Behenis. a, Teleutospore and raesospore, on Sil