Gelatinous lichen hi-res stock photography and images

Bat's Wings Lichen, Collema furfuraceum Stock Photo

RMBFBT6D–Bat's Wings Lichen, Collema furfuraceum

Close-up of lichen with cup-shaped apothecia - Pisgah National Forest, Brevard, North Carolina, USA Stock Photo

RM2XC0AGJ–Close-up of lichen with cup-shaped apothecia - Pisgah National Forest, Brevard, North Carolina, USA

Orange Golden Jelly Fungus or Yellow Brain Fungus or (Tremella Mesenterica) on the lichen covered dead branch of an Oak. Stock Photo

RF2F2AMA5–Orange Golden Jelly Fungus or Yellow Brain Fungus or (Tremella Mesenterica) on the lichen covered dead branch of an Oak.

Psathyrella sp. growing up in the trunk of a tree Stock Photo

RFK8HW91–Psathyrella sp. growing up in the trunk of a tree

Black bulgar fungus, Bulgaria inquinans Stock Photo

RFKW1CY1–Black bulgar fungus, Bulgaria inquinans

The fungus Bulgaria inquinans (commonly known as black bulgar) is an Ascomycete in the family Bulgariaceae. It grows on dead oak and hornbeam. Stock Photo

RFPT86JG–The fungus Bulgaria inquinans (commonly known as black bulgar) is an Ascomycete in the family Bulgariaceae. It grows on dead oak and hornbeam.

Clitopilus prunulus, known as the sweet bread mushroom, which grows in the forest among the fallen leaves. Spain Stock Photo

RF2B09BH0–Clitopilus prunulus, known as the sweet bread mushroom, which grows in the forest among the fallen leaves. Spain

Tremella mesenterica or golden jelly fungus growing on a piece od dead wood Stock Photo

RF2C0P466–Tremella mesenterica or golden jelly fungus growing on a piece od dead wood

Group of miller or sweetbread mushrooms (Clitopilus prunulus) Stock Photo

RFF29XGY–Group of miller or sweetbread mushrooms (Clitopilus prunulus)

Jews Ear Fungus (Auricula Judae) growing on a fallen tree trunk. Stock Photo

RMAKMG22–Jews Ear Fungus (Auricula Judae) growing on a fallen tree trunk.

Internal structure of lichen Stock Photo

RF2G2JFX7–Internal structure of lichen

Text-book of botany, morphological and physiological . Fig. 185.—a piece of the foliaceous thallus of PelH-S-era horizontalis; a the apothecia; r the rhizines(natural size).. Fig. 186.—Collema pjilposiaii, a gelatinous Lichen(slightly magnified). forms flake-like expansions often curled, which can be completely detached fromthe ground, stones, moss, bark, &c., which support them, since they are attached to itonly in places by a few organs of attachment, the Rhizines. The foliaceous thallus often Stock Photo

RM2AWXW16–Text-book of botany, morphological and physiological . Fig. 185.—a piece of the foliaceous thallus of PelH-S-era horizontalis; a the apothecia; r the rhizines(natural size).. Fig. 186.—Collema pjilposiaii, a gelatinous Lichen(slightly magnified). forms flake-like expansions often curled, which can be completely detached fromthe ground, stones, moss, bark, &c., which support them, since they are attached to itonly in places by a few organs of attachment, the Rhizines. The foliaceous thallus often

Nice fungus that grows on dead wood. Photographed in a chestnut forest. Stock Photo

RFR165AP–Nice fungus that grows on dead wood. Photographed in a chestnut forest.

Very interesting phenomenon. Trembling water in tundra filled with air balloons - Arctic colony of Nostoc cyanobacteria (Mare's Stock Photo

RFH8D93J–Very interesting phenomenon. Trembling water in tundra filled with air balloons - Arctic colony of Nostoc cyanobacteria (Mare's

Purple Jelly Disc fungi on green moss and lichen covered wood stump Stock Photo

RF2HCMGMM–Purple Jelly Disc fungi on green moss and lichen covered wood stump

Fungi Tremella mesenterica growing alongside lichen on a dead branch. Stock Photo

RF2XP5HAX–Fungi Tremella mesenterica growing alongside lichen on a dead branch.

Tremella mesenterica (common names include yellow brain, golden jelly fungus, yellow trembler, and witches' butter[2]) is a common jelly fungus in the Stock Photo

RF2D4RMT4–Tremella mesenterica (common names include yellow brain, golden jelly fungus, yellow trembler, and witches' butter[2]) is a common jelly fungus in the

Fantastic fungi, fungus, Dacryopinax Spathularia growing outside on old wood, shot in macro. Stock Photo

RF2PY4RC9–Fantastic fungi, fungus, Dacryopinax Spathularia growing outside on old wood, shot in macro.

Yellow Brain Fungi (Tremella mesenterica) Stock Photo

RMCYG6CH–Yellow Brain Fungi (Tremella mesenterica)

RMBFBT67–Bat's Wings Lichen, Collema furfuraceum

RM2XC0AJ2–Close-up of lichen with cup-shaped apothecia - Pisgah National Forest, Brevard, North Carolina, USA

RF2F2AMAD–Orange Golden Jelly Fungus or Yellow Brain Fungus or (Tremella Mesenterica) on the lichen covered dead branch of an Oak.

RFPT86MX–The fungus Bulgaria inquinans (commonly known as black bulgar) is an Ascomycete in the family Bulgariaceae. It grows on dead oak and hornbeam.

RF2B09BHW–Clitopilus prunulus, known as the sweet bread mushroom, which grows in the forest among the fallen leaves. Spain

RF2C0P46K–Tremella mesenterica or golden jelly fungus growing on a piece od dead wood

Tremella Mesenterica mushrooms growing on a dead branch. Spain Stock Photo

RF2B1E3PN–Tremella Mesenterica mushrooms growing on a dead branch. Spain

Endoptychum agaricoides, between boil it Stock Photo

RF2BER01W–Endoptychum agaricoides, between boil it

$Text-book of structural and physiological botany . Fig. 412.—I. Longitudinal section through the thallus of a Gelatinous Lichen, Mal-lotiuni Hildenbra7tdii {x igo) ; IL piece of a very thin section through theunder side with moniliform chains of gonidia (after De Bary, x 390). it consists of gonidia and narrow filaments of cells imbeddedin an apparently homogeneous jelly. The contents of thecells are always colourless and invisible, and apparentlycontain no organised constituents such as grains of starch.The cell-walls of many Lichens (as, e.g.^ the so-called ^Ice-land moss, Cetraria islandica Stock Photo$

RM2AXF51X–Text-book of structural and physiological botany . Fig. 412.—I. Longitudinal section through the thallus of a Gelatinous Lichen, Mal-lotiuni Hildenbra7tdii {x igo) ; IL piece of a very thin section through theunder side with moniliform chains of gonidia (after De Bary, x 390). it consists of gonidia and narrow filaments of cells imbeddedin an apparently homogeneous jelly. The contents of thecells are always colourless and invisible, and apparentlycontain no organised constituents such as grains of starch.The cell-walls of many Lichens (as, e.g.^ the so-called ^Ice-land moss, Cetraria islandica

RFH8D94P–Very interesting phenomenon. Trembling water in tundra filled with air balloons - Arctic colony of Nostoc cyanobacteria (Mare's

RF2D4RMR5–Tremella mesenterica (common names include yellow brain, golden jelly fungus, yellow trembler, and witches' butter[2]) is a common jelly fungus in the

RF2PY4RCE–Fantastic fungi, fungus, Dacryopinax Spathularia growing outside on old wood, shot in macro.

RF2C0P45E–Tremella mesenterica or golden jelly fungus growing on a piece od dead wood

RFRAF9E4–Endoptychum agaricoides, between boil it

Text-book of botany, morphological and physiological . Fig. 186.—Collema pjilposiaii, a gelatinous Lichen(slightly magnified). forms flake-like expansions often curled, which can be completely detached fromthe ground, stones, moss, bark, &c., which support them, since they are attached to itonly in places by a few organs of attachment, the Rhizines. The foliaceous thallus often. Fig, iBy.—A Usnea harbata, a fruticose Lichen (natural size); B Sticta pjilmonacea, a foliaceous Lichen (natural size)seen from beneath ; a apothecia,/the attaching disc of A, by which the Lichen becomes attached to th Stock Photo

RM2AWXTKG–Text-book of botany, morphological and physiological . Fig. 186.—Collema pjilposiaii, a gelatinous Lichen(slightly magnified). forms flake-like expansions often curled, which can be completely detached fromthe ground, stones, moss, bark, &c., which support them, since they are attached to itonly in places by a few organs of attachment, the Rhizines. The foliaceous thallus often. Fig, iBy.—A Usnea harbata, a fruticose Lichen (natural size); B Sticta pjilmonacea, a foliaceous Lichen (natural size)seen from beneath ; a apothecia,/the attaching disc of A, by which the Lichen becomes attached to th

Clitopilus prunulus, growing on a dead log Stock Photo

RFRAF9D0–Clitopilus prunulus, growing on a dead log

RF2PY4RDJ–Fantastic fungi, fungus, Dacryopinax Spathularia growing outside on old wood, shot in macro.

RF2C0P45H–Tremella mesenterica or golden jelly fungus growing on a piece od dead wood

. Lichens. Lichens. i6o REPRODUCTION I. DISCOLICHENS a. Carpogonia of Gelatinous Lichens. Stahl's^ work on various Collemaceae followed on the same lines as that of Fuisting. The first species selected by him for examination, Collema (Leptogiufn) microphylluni, is a gelatinous lichen which grows on old trunks of poplars and willows. It has a small olive-green thallus which, in autumn, is crowded with apothecia; the spermogones or pycnidia appear as minute reddish points on the edge of the thallus. Within the thallus, and midway between the upper and lower surface, there arises, as a branch fro Stock Photo

RMRDX3G6–. Lichens. Lichens. i6o REPRODUCTION I. DISCOLICHENS a. Carpogonia of Gelatinous Lichens. Stahl's^ work on various Collemaceae followed on the same lines as that of Fuisting. The first species selected by him for examination, Collema (Leptogiufn) microphylluni, is a gelatinous lichen which grows on old trunks of poplars and willows. It has a small olive-green thallus which, in autumn, is crowded with apothecia; the spermogones or pycnidia appear as minute reddish points on the edge of the thallus. Within the thallus, and midway between the upper and lower surface, there arises, as a branch fro

RF2BEPYR3–Clitopilus prunulus, growing on a dead log

Clavulina cristata growing among the forest leaves Stock Photo

RF2BEPTJJ–Clavulina cristata growing among the forest leaves

RF2C0P45G–Tremella mesenterica or golden jelly fungus growing on a piece od dead wood

. Text-book of botany, morphological and physiological. Botany. Fig. 211,—A piece of the foliaceous thallus oiPel- tigera horizontals; a the apothecia; r the rhizines (natural size). FIG. 2to.—A, B Graphis elegans, a crustaceous Lichen growing on the bark of the Holly ; A natural size/i? slightly magnified; C Pertusaria Wulfeni, another crustaceous Lichen (slightly magnified).. Fig. 212.—Collemapulposum, a gelatinous Lichen (slightly magnified). passes over, through various gradations, into that of the Foliaceous Lichens; the latter forms flake-like expansions often curled, which can be comple Stock Photo

RMRPXNEW–. Text-book of botany, morphological and physiological. Botany. Fig. 211,—A piece of the foliaceous thallus oiPel- tigera horizontals; a the apothecia; r the rhizines (natural size). FIG. 2to.—A, B Graphis elegans, a crustaceous Lichen growing on the bark of the Holly ; A natural size/i? slightly magnified; C Pertusaria Wulfeni, another crustaceous Lichen (slightly magnified).. Fig. 212.—Collemapulposum, a gelatinous Lichen (slightly magnified). passes over, through various gradations, into that of the Foliaceous Lichens; the latter forms flake-like expansions often curled, which can be comple

RFRAF8N5–Clavulina cristata growing among the forest leaves

Lyophyllum conglobatum growing on a dead trunk Stock Photo

RFRAF8MP–Lyophyllum conglobatum growing on a dead trunk

RF2C0P45R–Tremella mesenterica or golden jelly fungus growing on a piece od dead wood

Elementary botany . nomycetes). Gymnocarpous lichens (those with a fruit body like the Discomycetes).Hymenolichenes (those with a fruit body like the Hymenomycetes).Gasterolichenes (those with a fruit body like the Gasteromycetes). From a vegetative standpoint there are two types according to the dis-tribution of the elements. 1 st. Where the fungal and algal elements are evenly distributed in theplant body the lichen is said to be homoiomerous. There are two types ofthese: a. Filamentous lichens, example, Ephebe pubescens. b. Gelatinous lichens, example, Collema (with the alga nostoc), Physma Stock Photo

RM2AJD4E6–Elementary botany . nomycetes). Gymnocarpous lichens (those with a fruit body like the Discomycetes).Hymenolichenes (those with a fruit body like the Hymenomycetes).Gasterolichenes (those with a fruit body like the Gasteromycetes). From a vegetative standpoint there are two types according to the dis-tribution of the elements. 1 st. Where the fungal and algal elements are evenly distributed in theplant body the lichen is said to be homoiomerous. There are two types ofthese: a. Filamentous lichens, example, Ephebe pubescens. b. Gelatinous lichens, example, Collema (with the alga nostoc), Physma

RF2BEPTJD–Lyophyllum conglobatum growing on a dead trunk

Agrocybe aegerita. growing on a dead log Stock Photo

RF2BEPXWP–Agrocybe aegerita. growing on a dead log

RF2C0P46B–Tremella mesenterica or golden jelly fungus growing on a piece od dead wood

Text-book of botany, morphological and physiological . roductivepower, the Soredia. This term is applied to single gonidial cells or groups of gonidia which,surrounded by a weft of hyphae, are pushed out of the thallus, and are able, without anyfurther process, to grow into a new Lichen-thallus. The soredia are produced from thethallus in the non-gelatinous Lichens as a fine powder, forming sometimes dense pulvinatemasses (as in Usnea, Ramalina, Evernia, Physcia, Parmelia, Pertusaria, &c.). In theheteromerous thallus the soredia appear in the gonidial layer; single gonidia, or some-times sever Stock Photo

RM2AWXM57–Text-book of botany, morphological and physiological . roductivepower, the Soredia. This term is applied to single gonidial cells or groups of gonidia which,surrounded by a weft of hyphae, are pushed out of the thallus, and are able, without anyfurther process, to grow into a new Lichen-thallus. The soredia are produced from thethallus in the non-gelatinous Lichens as a fine powder, forming sometimes dense pulvinatemasses (as in Usnea, Ramalina, Evernia, Physcia, Parmelia, Pertusaria, &c.). In theheteromerous thallus the soredia appear in the gonidial layer; single gonidia, or some-times sever

RFRAF9AX–Agrocybe aegerita. growing on a dead log

RF2C0P45N–Tremella mesenterica or golden jelly fungus growing on a piece od dead wood

Text-book of structural and physiological botany . FiG. 410.—G raphis elegall s,^Vc.ox2 Fig. 411.—Chain of gonidia of a PictorialLichen (natural size). Lichen, Graphis scripta (x 390.) special Morphology and Classification. 287 like incrustations on stones and the bark of trees (Fig. 410).The chief pecuHarity of their thallus consists in the natureof their gonidia, which are often united into many-celledalga-like rows of cells (Fig. 411), increasing in length bydivision of the terminal cell. The thallus of the Gelatinous Lichens (Fig. 412) has aleaf-like or an arborescent form, or consists Stock Photo

RM2AXF55R–Text-book of structural and physiological botany . FiG. 410.—G raphis elegall s,^Vc.ox2 Fig. 411.—Chain of gonidia of a PictorialLichen (natural size). Lichen, Graphis scripta (x 390.) special Morphology and Classification. 287 like incrustations on stones and the bark of trees (Fig. 410).The chief pecuHarity of their thallus consists in the natureof their gonidia, which are often united into many-celledalga-like rows of cells (Fig. 411), increasing in length bydivision of the terminal cell. The thallus of the Gelatinous Lichens (Fig. 412) has aleaf-like or an arborescent form, or consists

RF2BEPXND–Agrocybe aegerita. growing on a dead log

Elementary botany . ccaceae. — The plantsmultiply only through cell division. Chroococ-cus, forms rounded, blue-green cells enclosedin a thick gelatinous coat, in fresh water andin damp places; certain species form lichen-gonidia in some genera of lichens. Gloeo-capsa is similar i;o Chroococcus, but the col-onies are surrounded by an additional commongelatinous envelope (fig. 168); on damp rocks,etc. 354. ORDER HORMOGONALES (HORMOGONEJE).—Plants filamentous, ^ simple celled or with false or true branching, usuallyseveral celled (Spirulina issingle celled). Multiplica-tion takes place throughho Stock Photo

RM2AJDMWE–Elementary botany . ccaceae. — The plantsmultiply only through cell division. Chroococ-cus, forms rounded, blue-green cells enclosedin a thick gelatinous coat, in fresh water andin damp places; certain species form lichen-gonidia in some genera of lichens. Gloeo-capsa is similar i;o Chroococcus, but the col-onies are surrounded by an additional commongelatinous envelope (fig. 168); on damp rocks,etc. 354. ORDER HORMOGONALES (HORMOGONEJE).—Plants filamentous, ^ simple celled or with false or true branching, usuallyseveral celled (Spirulina issingle celled). Multiplica-tion takes place throughho

RFRAF9B1–Agrocybe aegerita. growing on a dead log

RFRAF9AY–Agrocybe aegerita. growing on a dead log

. Lichens. Lichens. 52 CONSTITUENTS OF THE LICHEN THALLUS a. Myxophyceae associated with Phycolichens. The blue-green algae are characterized by the colour of their pigments which persists in the gonidial condition giving various tints to the component lichens, and by the gelatinous sheath in which most of them are enclosed. This sheath, both in the lichen gonidia^ and in free-living forms, imbibes and retains moisture to a remarkable extent and the thallus containing blue-green algae profits by its power of storing moisture. Myxophyceae form the gonidia of the gelatinous lichens as well as of Stock Photo

RMRDX3YJ–. Lichens. Lichens. 52 CONSTITUENTS OF THE LICHEN THALLUS a. Myxophyceae associated with Phycolichens. The blue-green algae are characterized by the colour of their pigments which persists in the gonidial condition giving various tints to the component lichens, and by the gelatinous sheath in which most of them are enclosed. This sheath, both in the lichen gonidia^ and in free-living forms, imbibes and retains moisture to a remarkable extent and the thallus containing blue-green algae profits by its power of storing moisture. Myxophyceae form the gonidia of the gelatinous lichens as well as of

RF2BEPXRJ–Agrocybe aegerita. growing on a dead log

tubal pellucida growing in a trunk Stock Photo

RFRAF9P5–tubal pellucida growing in a trunk

Tremella foliacea growing among Moss Stock Photo

RFRAF9P4–Tremella foliacea growing among Moss

Tricholoma portentosum growing on the forest floor Stock Photo

RFRAF9P6–Tricholoma portentosum growing on the forest floor

RF2BER0WK–Tremella foliacea growing among Moss

Rhodotus palmatus growing in a trunk Stock Photo

RFRAF9NN–Rhodotus palmatus growing in a trunk

. Plant life, considered with special references to form and function. Plant physiology. 338 PLANT LIFE. plants may be surrounded liy a mycelium. The enslaved green plants are generally unicellular or filamentous algK. If the latter are the species whose colonies produce voluminous gelatine, the texture of the lichen bod)' is gelatinous; other- wise it is tough and leathery. Some of the fungi which ordinarily associ- ate themsehes with alga; to form lichens may exist free as sapro- phytes. The alga itself influences the form of tlie thallus more or less profoundly according to its relative amo Stock Photo

RMRDY8FG–. Plant life, considered with special references to form and function. Plant physiology. 338 PLANT LIFE. plants may be surrounded liy a mycelium. The enslaved green plants are generally unicellular or filamentous algK. If the latter are the species whose colonies produce voluminous gelatine, the texture of the lichen bod)' is gelatinous; other- wise it is tough and leathery. Some of the fungi which ordinarily associ- ate themsehes with alga; to form lichens may exist free as sapro- phytes. The alga itself influences the form of tlie thallus more or less profoundly according to its relative amo

RF2BER0PN–Rhodotus palmatus growing in a trunk

. Outlines of plant life : with special reference to form and function . Botany. 2s6 OUTLINES OF PLANT LIFE. the fungus is the master and the alga the slave. (See 48, and figs. 215, 216.) The same fiingus may be found en- slaving more than one species of algae even within the same mycelium. The proto- nema of mosses (see ^ 59) or even the leaves of some small plants may be surrounded by a my- celium. The enslaved green plants are generally unicellular or filamentous algae. If the latter are the species whose colonies produce voluminous gela- tin, the texture of the lichen body is gelatinous; Stock Photo

RMRDHND0–. Outlines of plant life : with special reference to form and function . Botany. 2s6 OUTLINES OF PLANT LIFE. the fungus is the master and the alga the slave. (See 48, and figs. 215, 216.) The same fiingus may be found en- slaving more than one species of algae even within the same mycelium. The proto- nema of mosses (see ^ 59) or even the leaves of some small plants may be surrounded by a my- celium. The enslaved green plants are generally unicellular or filamentous algae. If the latter are the species whose colonies produce voluminous gela- tin, the texture of the lichen body is gelatinous;

RF2BER0WW–tubal pellucida growing in a trunk

RF2BER0WP–Tricholoma portentosum growing on the forest floor

. Lichens. Lichens. REPRODUCTION IN DISCOLICHENS 16s firmly attached to the trichogyne cell but without any plasma connection between the two. The changes in the trichogyne described by Stahl and Baur in Collemaceae were not seen in Anaptychia; the peculiar swelling of the septa seems to be a phenomenon confined to gelatinous lichens. During the trichogyne stage in this lichen the vegetative hyphae from the medulla grow up and surround the young carpogonia, and, at the same time, very slender hyphae begin to branch upwards to form the paraphyses. Darbi- shire's^ examination of Physcia pulverul Stock Photo

RMRDX3F3–. Lichens. Lichens. REPRODUCTION IN DISCOLICHENS 16s firmly attached to the trichogyne cell but without any plasma connection between the two. The changes in the trichogyne described by Stahl and Baur in Collemaceae were not seen in Anaptychia; the peculiar swelling of the septa seems to be a phenomenon confined to gelatinous lichens. During the trichogyne stage in this lichen the vegetative hyphae from the medulla grow up and surround the young carpogonia, and, at the same time, very slender hyphae begin to branch upwards to form the paraphyses. Darbi- shire's^ examination of Physcia pulverul

. Lichens. Lichens. LICHEN ALGAE SS RiVULARiA Thuret. In tufts fixed at the base and forming roundish gelatinous colonies; colour, blue-green. The gonidium of Lichinaceae has been identified as R. nitida Ag. Algae belonging to one or other of these genera of Myxophyceae also combine with the hyphae of Archilichens to form cephalodia^ and Krem- pelhuber^ has recorded and figured a blue-green alga, probably Gloeocapsa, in Baeomyces paeminostis from the South Sea Islands. They also form the gonidia in a few species and genera of such families as Stictaceae and Peltigeraceae. b. Chlorophyceae asso Stock Photo

RMRDX3XG–. Lichens. Lichens. LICHEN ALGAE SS RiVULARiA Thuret. In tufts fixed at the base and forming roundish gelatinous colonies; colour, blue-green. The gonidium of Lichinaceae has been identified as R. nitida Ag. Algae belonging to one or other of these genera of Myxophyceae also combine with the hyphae of Archilichens to form cephalodia^ and Krem- pelhuber^ has recorded and figured a blue-green alga, probably Gloeocapsa, in Baeomyces paeminostis from the South Sea Islands. They also form the gonidia in a few species and genera of such families as Stictaceae and Peltigeraceae. b. Chlorophyceae asso

. Lichens. Lichens. LICHEN ALGAE 57 Coccomyxa subellipsoidea is given' as the gonidium of the primitive lichen Botrydina vulgaris {¥[g. 25). The cells are surrounded by a common gelatinous sheath.. Fig. 34. Coccobotrys Verritcariae Chod. from culture x 800 (after Chodat). Fig. 25. Coccomyxa subellipsoidea Acton. Actively dividing cells, the dark portions indicating the chloroplasts x tooo (after Acton). 5. DiPLOSPHAERA Bial.' D. Chodati was taken from the thallus of Lecanora tartarea and successfully cultivated. It resembles Protococcus, but has smaller cells and grows more rapidly; it is evid Stock Photo

RMRDX3WR–. Lichens. Lichens. LICHEN ALGAE 57 Coccomyxa subellipsoidea is given' as the gonidium of the primitive lichen Botrydina vulgaris {¥[g. 25). The cells are surrounded by a common gelatinous sheath.. Fig. 34. Coccobotrys Verritcariae Chod. from culture x 800 (after Chodat). Fig. 25. Coccomyxa subellipsoidea Acton. Actively dividing cells, the dark portions indicating the chloroplasts x tooo (after Acton). 5. DiPLOSPHAERA Bial.' D. Chodati was taken from the thallus of Lecanora tartarea and successfully cultivated. It resembles Protococcus, but has smaller cells and grows more rapidly; it is evid

. Botany of the living plant. Botany. ./ B Fig. 372. A=Xanthona {Parmelia) parietina, the common foliaceous yellow Lichen. B = Cladonia rangifera, a fruticose Lichen. Both bear ascus-fruits, and are shown natural size. (After Strasburger.) (Chapter XL). The Lichens are very various in form. In simple cases they may be filamentous, as in Ephebe, which is like a filamentous Alga with a fungus growing in its mucilaginous walls. Some appear as flat gelatinous thalli, readily swelling with water, as in Collema, which is based upon the gelatinous Alga, Nostoc. Others are more firm in texture, and fo Stock Photo

RMRH8DXB–. Botany of the living plant. Botany. ./ B Fig. 372. A=Xanthona {Parmelia) parietina, the common foliaceous yellow Lichen. B = Cladonia rangifera, a fruticose Lichen. Both bear ascus-fruits, and are shown natural size. (After Strasburger.) (Chapter XL). The Lichens are very various in form. In simple cases they may be filamentous, as in Ephebe, which is like a filamentous Alga with a fungus growing in its mucilaginous walls. Some appear as flat gelatinous thalli, readily swelling with water, as in Collema, which is based upon the gelatinous Alga, Nostoc. Others are more firm in texture, and fo

. Botany for academies and colleges: consisting of plant development and structure from seaweed to clematis. Botany; 1889. 32 ACADEMIC BOTANV. dry and leathery, but some are gelatinous, like the Lichina. They are 'polymorph- ous (of many forms), often imitating stems, as in the Bearded Lichen (JJsnea bar- bata). A lichen [Lecanora es- culenta) is believed to be the manna which fed the Israelites in the desert. It grows among flints, from which its small, filbert- ar;TnfireÂ°apoÂ«f/oil^""Â°'" '"'â '"'â "'â â¢ ^ '"""''â¢ ^^R^.-^ thailus can scarcely b Stock Photo

RMRDJ2X1–. Botany for academies and colleges: consisting of plant development and structure from seaweed to clematis. Botany; 1889. 32 ACADEMIC BOTANV. dry and leathery, but some are gelatinous, like the Lichina. They are 'polymorph- ous (of many forms), often imitating stems, as in the Bearded Lichen (JJsnea bar- bata). A lichen [Lecanora es- culenta) is believed to be the manna which fed the Israelites in the desert. It grows among flints, from which its small, filbert- ar;TnfireÂ°apoÂ«f/oil^""Â°'" '"'â '"'â "'â â¢ ^ '"""''â¢ ^^R^.-^ thailus can scarcely b

. Lichens. Lichens. LICHEN ALGAE 53 two genera form the gonidia in the family Pyrenopsidaceae. Gloeocapsa polydermatica Kiitz. has been identified as a lichen gonidium. Fam. NOSTOCACEAE. Filamentous algae unbranched and without base or apex. NoSTOC Vauch. Composed of flexuous trichomes, with intercalary heterocysts (colourless cells) (Fig. i8). Dense gelatinous colonies of definite. Fig. i8. Examples of Nostoc. N. Linckia Bom. A, nat. size; B, small portion X 340 ; C, N. coerulescens Lyngbye, nat. size (after West).. Please note that these images are extracted from scanned page images that may Stock Photo

RMRDX3Y6–. Lichens. Lichens. LICHEN ALGAE 53 two genera form the gonidia in the family Pyrenopsidaceae. Gloeocapsa polydermatica Kiitz. has been identified as a lichen gonidium. Fam. NOSTOCACEAE. Filamentous algae unbranched and without base or apex. NoSTOC Vauch. Composed of flexuous trichomes, with intercalary heterocysts (colourless cells) (Fig. i8). Dense gelatinous colonies of definite. Fig. i8. Examples of Nostoc. N. Linckia Bom. A, nat. size; B, small portion X 340 ; C, N. coerulescens Lyngbye, nat. size (after West).. Please note that these images are extracted from scanned page images that may

. Nature and development of plants. Botany. 232 THE ASCO-LICHENS size, forms of Morchella occasionally reaching the height of a foot and some species of Gyromitra weigh over a pound. 86. The Asco-lichens.—^A second line of departure from the Pezizales includes a large group of plants known as the lichen. The great majority of these forms show strong evidence of rela-. FiG. 141. Common forms of the Helvellales: A, the morel, Morchella, surface view at left and in section at right. The asci and paraphyses form a hymenium over the honeycomb surface. B, Leolia, a small gelatinous form of a light, Stock Photo

RMRDWG2E–. Nature and development of plants. Botany. 232 THE ASCO-LICHENS size, forms of Morchella occasionally reaching the height of a foot and some species of Gyromitra weigh over a pound. 86. The Asco-lichens.—^A second line of departure from the Pezizales includes a large group of plants known as the lichen. The great majority of these forms show strong evidence of rela-. FiG. 141. Common forms of the Helvellales: A, the morel, Morchella, surface view at left and in section at right. The asci and paraphyses form a hymenium over the honeycomb surface. B, Leolia, a small gelatinous form of a light,

RMRE1R3J–. Nature and development of plants. Botany. 232 THE ASCO-LICHENS size, forms of Morchella occasionally reaching the height of a foot and some species of Gyromitra weigh over a pound. 86. The Asco-lichens.âA second line of departure from the Pezizales includes a large group of plants known as the lichen. The great majority of these forms show strong evidence of rela-. â â¢^^ Fig. 141. Common forms of the Helvellales: A, the morel, Morchella, surface view at left and in section at right. The asci and paraphyses form a hymenium over the honeycomb surface. B, Leotia, a small gelatinous form of a l

$. Botany of the living plant. Botany. Mc. 372. A=^Xiuiiliona {Fanmhaj panciina, the coiiiiiiou foliaLCOUb- y(. lli.)v Lit^lien. B = Clad(ynia rangifera, a fruticose Lichen- Both hc-ar ascus-truits, and are shown natural size, (.fter Strasburger.) (Chapter XL). The Lichens are verv various in form. In simple cases they may be filamentous, as m Ephebe, which is like a filamentous Alga with a fungus growing in its mucilaginous walls. Some appear as flat gelatinous thalli, readilv swelling with water, as in Colleina, wliieh is based upon the gelatinous Alga, A'Osloc. Others are more firm in text Stock Photo$

RMRDY63F–. Botany of the living plant. Botany. Mc. 372. A=^Xiuiiliona {Fanmhaj panciina, the coiiiiiiou foliaLCOUb- y(. lli.)v Lit^lien. B = Clad(ynia rangifera, a fruticose Lichen- Both hc-ar ascus-truits, and are shown natural size, (.fter Strasburger.) (Chapter XL). The Lichens are verv various in form. In simple cases they may be filamentous, as m Ephebe, which is like a filamentous Alga with a fungus growing in its mucilaginous walls. Some appear as flat gelatinous thalli, readilv swelling with water, as in Colleina, wliieh is based upon the gelatinous Alga, A'Osloc. Others are more firm in text

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