Horizontally elongated Black & White Stock Photos
. Introduction to structural and systematic botany, and vegetable physiology. Botany. 106 THE STEM.. besides, the interminable subterranean branches bear tubers, or reservoirs of nutritive matter, in their course, which have still greater powers of vitality, as they contain a copious store of food for the development of the buds they bear. The name of 188. Rhizoma or RootstOCk is apphed in a general way to all these perennial, horizontally elongated, more or less subterranean, root- like forms of the stem; and more particu- larly to those that are consid- erably thick- ened by the ac- 188 cumu Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/introduction-to-structural-and-systematic-botany-and-vegetable-physiology-botany-106-the-stem-besides-the-interminable-subterranean-branches-bear-tubers-or-reservoirs-of-nutritive-matter-in-their-course-which-have-still-greater-powers-of-vitality-as-they-contain-a-copious-store-of-food-for-the-development-of-the-buds-they-bear-the-name-of-188-rhizoma-or-rootstock-is-apphed-in-a-general-way-to-all-these-perennial-horizontally-elongated-more-or-less-subterranean-root-like-forms-of-the-stem-and-more-particu-larly-to-those-that-are-consid-erably-thick-ened-by-the-ac-188-cumu-image232290467.htmlRMRDWMT3–. Introduction to structural and systematic botany, and vegetable physiology. Botany. 106 THE STEM.. besides, the interminable subterranean branches bear tubers, or reservoirs of nutritive matter, in their course, which have still greater powers of vitality, as they contain a copious store of food for the development of the buds they bear. The name of 188. Rhizoma or RootstOCk is apphed in a general way to all these perennial, horizontally elongated, more or less subterranean, root- like forms of the stem; and more particu- larly to those that are consid- erably thick- ened by the ac- 188 cumu
. Fossil plants : for students of botany and geology . Paleobotany. 176 MEGALOXYLEAE [CH. cases -4111111.—and their iso-diametric or even horizontally elongated and flattened form. Some of these large metaxylem elements are seen in longitudinal section at m in fig. 448 where the shrinkage and partial decay of the parenchymatous tissue have resulted in the separation of transverse bands of xylem A B. 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 resem Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/fossil-plants-for-students-of-botany-and-geology-paleobotany-176-megaloxyleae-ch-cases-4111111and-their-iso-diametric-or-even-horizontally-elongated-and-flattened-form-some-of-these-large-metaxylem-elements-are-seen-in-longitudinal-section-at-m-in-fig-448-where-the-shrinkage-and-partial-decay-of-the-parenchymatous-tissue-have-resulted-in-the-separation-of-transverse-bands-of-xylem-a-b-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-resem-image216369213.htmlRMPG0D3W–. Fossil plants : for students of botany and geology . Paleobotany. 176 MEGALOXYLEAE [CH. cases -4111111.—and their iso-diametric or even horizontally elongated and flattened form. Some of these large metaxylem elements are seen in longitudinal section at m in fig. 448 where the shrinkage and partial decay of the parenchymatous tissue have resulted in the separation of transverse bands of xylem A B. 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 resem
. Introduction to structural and systematic botany, and vegetable physiology. Botany. besides, the interminable subterranean branches bear tubers, or reservoirs of nutritive matter, in their course, which have still greater powers of vitality, as they contain a copious store of food for the development of the buds they bear. The name of 188. Rhizoma or RootstOCk is apphed in a general way to all these perennial, horizontally elongated, more or less subterranean, root- like forms of the stem; and more particu- larly to those that are consid- erably thick- ened by the ac- 188 cumulation of starc Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/introduction-to-structural-and-systematic-botany-and-vegetable-physiology-botany-besides-the-interminable-subterranean-branches-bear-tubers-or-reservoirs-of-nutritive-matter-in-their-course-which-have-still-greater-powers-of-vitality-as-they-contain-a-copious-store-of-food-for-the-development-of-the-buds-they-bear-the-name-of-188-rhizoma-or-rootstock-is-apphed-in-a-general-way-to-all-these-perennial-horizontally-elongated-more-or-less-subterranean-root-like-forms-of-the-stem-and-more-particu-larly-to-those-that-are-consid-erably-thick-ened-by-the-ac-188-cumulation-of-starc-image232290462.htmlRMRDWMRX–. Introduction to structural and systematic botany, and vegetable physiology. Botany. besides, the interminable subterranean branches bear tubers, or reservoirs of nutritive matter, in their course, which have still greater powers of vitality, as they contain a copious store of food for the development of the buds they bear. The name of 188. Rhizoma or RootstOCk is apphed in a general way to all these perennial, horizontally elongated, more or less subterranean, root- like forms of the stem; and more particu- larly to those that are consid- erably thick- ened by the ac- 188 cumulation of starc
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 190 POISON SUMACH Rhus Vernix, Linnaeus FORM-oA shrub or small tret, usually 5-10 ft. high but may roach a height of 20 ft. with a diameter of 8 inches. Usually branches near ground. Crown wide, deep, and usually rounded. BARK—Smooth, somewhat streaked, thin, liyht to dark gray, roughened with horizontally- elongated lenticels. — TWIGS—Stout, orange-brown, later light gray, smooth, often glossy, covered with numerous raised lenticels, contain yellowish-brown pith; if punctiired or cut, exude watery juice which tu Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-pennsylvania-department-of-forestry-no-11-forests-and-forestry-190-poison-sumach-rhus-vernix-linnaeus-form-oa-shrub-or-small-tret-usually-5-10-ft-high-but-may-roach-a-height-of-20-ft-with-a-diameter-of-8-inches-usually-branches-near-ground-crown-wide-deep-and-usually-rounded-barksmooth-somewhat-streaked-thin-liyht-to-dark-gray-roughened-with-horizontally-elongated-lenticels-twigsstout-orange-brown-later-light-gray-smooth-often-glossy-covered-with-numerous-raised-lenticels-contain-yellowish-brown-pith-if-punctiired-or-cut-exude-watery-juice-which-tu-image233787060.htmlRMRG9WNT–. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 190 POISON SUMACH Rhus Vernix, Linnaeus FORM-oA shrub or small tret, usually 5-10 ft. high but may roach a height of 20 ft. with a diameter of 8 inches. Usually branches near ground. Crown wide, deep, and usually rounded. BARK—Smooth, somewhat streaked, thin, liyht to dark gray, roughened with horizontally- elongated lenticels. — TWIGS—Stout, orange-brown, later light gray, smooth, often glossy, covered with numerous raised lenticels, contain yellowish-brown pith; if punctiired or cut, exude watery juice which tu
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 122 RED BIRCH Betula nigra, Linnaeus near Avis in Clinton county. See Fig. 49. BARK-Varles with the age of the tree and Its location on the trunk. On lower part of Fig. 86. TWIGS-Slender. at first hairy and greenish, later smooth, reddish-brown, covered by pale horizontally-elongated lenticels. BUDS-Alternate. ovate, sharp-pointed, shining, smooth or slightly hairy, covered with usually S-7 chestnut-brown overlapping scales. T^VES-Altemate simple, occur singly or in pairs but never opposite 3-4 inches long. at^I^tJ Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-pennsylvania-department-of-forestry-no-11-forests-and-forestry-122-red-birch-betula-nigra-linnaeus-near-avis-in-clinton-county-see-fig-49-bark-varles-with-the-age-of-the-tree-and-its-location-on-the-trunk-on-lower-part-of-fig-86-twigs-slender-at-first-hairy-and-greenish-later-smooth-reddish-brown-covered-by-pale-horizontally-elongated-lenticels-buds-alternate-ovate-sharp-pointed-shining-smooth-or-slightly-hairy-covered-with-usually-s-7-chestnut-brown-overlapping-scales-tves-altemate-simple-occur-singly-or-in-pairs-but-never-opposite-3-4-inches-long-atitj-image233780296.htmlRMRG9H48–. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 122 RED BIRCH Betula nigra, Linnaeus near Avis in Clinton county. See Fig. 49. BARK-Varles with the age of the tree and Its location on the trunk. On lower part of Fig. 86. TWIGS-Slender. at first hairy and greenish, later smooth, reddish-brown, covered by pale horizontally-elongated lenticels. BUDS-Alternate. ovate, sharp-pointed, shining, smooth or slightly hairy, covered with usually S-7 chestnut-brown overlapping scales. T^VES-Altemate simple, occur singly or in pairs but never opposite 3-4 inches long. at^I^tJ
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 166 WILD BLACK CHERRY. Prunus serotina, Ehrhart.* FOEM—UPually reacbeR a height of 50-76 ft. with a diameter of 2-8 ft., but may attain a height of 110 ft. with a diameter of 5 feet. In forest grown specimens the trunk is usually long, clean, and with little taper, while in open grown specimens it is usually short. Crown rather Irregularly-oblong. BARK—On young trunks (Pig. 96) rather smooth, glossy, reddish-brown, marked with conspicuous-white horizontally-elongated lenticels; peels off in thin film-like layers, a Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-pennsylvania-department-of-forestry-no-11-forests-and-forestry-166-wild-black-cherry-prunus-serotina-ehrhart-foemupually-reacber-a-height-of-50-76-ft-with-a-diameter-of-2-8-ft-but-may-attain-a-height-of-110-ft-with-a-diameter-of-5-feet-in-forest-grown-specimens-the-trunk-is-usually-long-clean-and-with-little-taper-while-in-open-grown-specimens-it-is-usually-short-crown-rather-irregularly-oblong-barkon-young-trunks-pig-96-rather-smooth-glossy-reddish-brown-marked-with-conspicuous-white-horizontally-elongated-lenticels-peels-off-in-thin-film-like-layers-a-image233797976.htmlRMRGABKM–. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 166 WILD BLACK CHERRY. Prunus serotina, Ehrhart.* FOEM—UPually reacbeR a height of 50-76 ft. with a diameter of 2-8 ft., but may attain a height of 110 ft. with a diameter of 5 feet. In forest grown specimens the trunk is usually long, clean, and with little taper, while in open grown specimens it is usually short. Crown rather Irregularly-oblong. BARK—On young trunks (Pig. 96) rather smooth, glossy, reddish-brown, marked with conspicuous-white horizontally-elongated lenticels; peels off in thin film-like layers, a
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. Ill y « u 190 POISON SUMACH Rhus Vernix, Linnaeus FORM—A shrub or small tret, usually 5-10 ft. high but maj- reach a height of 20 ft. with a diameter of 8 inches. Usually branches near ground. Crown wide, deep, and usually rounded. BABX—Smooth, somewhat Mtreaked, thin, light to dark gray, roughened with horizontally- elongated lentlcels. — TWIGS—Stout, orange-brown, later light gray, smooth, often glossy, covered with numerous raised lentlcels, contain yellowish-brown pith; if punctured or cut, exude watery juice w Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-pennsylvania-department-of-forestry-no-11-forests-and-forestry-ill-y-u-190-poison-sumach-rhus-vernix-linnaeus-forma-shrub-or-small-tret-usually-5-10-ft-high-but-maj-reach-a-height-of-20-ft-with-a-diameter-of-8-inches-usually-branches-near-ground-crown-wide-deep-and-usually-rounded-babxsmooth-somewhat-mtreaked-thin-light-to-dark-gray-roughened-with-horizontally-elongated-lentlcels-twigsstout-orange-brown-later-light-gray-smooth-often-glossy-covered-with-numerous-raised-lentlcels-contain-yellowish-brown-pith-if-punctured-or-cut-exude-watery-juice-w-image233787040.htmlRMRG9WN4–. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. Ill y « u 190 POISON SUMACH Rhus Vernix, Linnaeus FORM—A shrub or small tret, usually 5-10 ft. high but maj- reach a height of 20 ft. with a diameter of 8 inches. Usually branches near ground. Crown wide, deep, and usually rounded. BABX—Smooth, somewhat Mtreaked, thin, light to dark gray, roughened with horizontally- elongated lentlcels. — TWIGS—Stout, orange-brown, later light gray, smooth, often glossy, covered with numerous raised lentlcels, contain yellowish-brown pith; if punctured or cut, exude watery juice w
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 122 RED BIRCH Betula nigra, Linnaeus near Avis in Clinton county. See Fig. 49. Fig. 86. TWIGB-Slender. at first hairy and greenish, later smooth, reddish-brown, covered by pale horizontally-elongated lenticels. BUDS-Alternate. ovate, sharp-pointed, shining, smooth or slightly hairy, covered with usually 8-7 chestnut-brown overlapping scales. I^VES-Altemate simple, occur singly or in pairs but never opposite 8-4 inches lonf. nt^l^tn^te rm^rgin. deep green above, pale yellowish-green below. LEAP-SCAES-Similar to thos Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-pennsylvania-department-of-forestry-no-11-forests-and-forestry-122-red-birch-betula-nigra-linnaeus-near-avis-in-clinton-county-see-fig-49-fig-86-twigb-slender-at-first-hairy-and-greenish-later-smooth-reddish-brown-covered-by-pale-horizontally-elongated-lenticels-buds-alternate-ovate-sharp-pointed-shining-smooth-or-slightly-hairy-covered-with-usually-8-7-chestnut-brown-overlapping-scales-ives-altemate-simple-occur-singly-or-in-pairs-but-never-opposite-8-4-inches-lonf-ntltnte-rmrgin-deep-green-above-pale-yellowish-green-below-leap-scaes-similar-to-thos-image233780244.htmlRMRG9H2C–. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 122 RED BIRCH Betula nigra, Linnaeus near Avis in Clinton county. See Fig. 49. Fig. 86. TWIGB-Slender. at first hairy and greenish, later smooth, reddish-brown, covered by pale horizontally-elongated lenticels. BUDS-Alternate. ovate, sharp-pointed, shining, smooth or slightly hairy, covered with usually 8-7 chestnut-brown overlapping scales. I^VES-Altemate simple, occur singly or in pairs but never opposite 8-4 inches lonf. nt^l^tn^te rm^rgin. deep green above, pale yellowish-green below. LEAP-SCAES-Similar to thos
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 172 WILD BLACK CHERRY Prunus serotina, Ehrhart FO&M—Usually readies a height of 50-75 ft. with a diameter of 2-3 ft., but may attain a height of 110 ft. with a diameter of 5 feet. In forest-grown gpecimens the trunk la usually long, clean, and with little taper, while In open-grown specimens It is usually short. Crown rather irregularIy-6l>long. BABK—On young trunks (Fig. 117) rather smooth, glossy, reddish-brown, marked with con- spicuous white horizontally-elongated lenticels; peels off in thin fllm-like l Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-pennsylvania-department-of-forestry-no-11-forests-and-forestry-172-wild-black-cherry-prunus-serotina-ehrhart-foampmusually-readies-a-height-of-50-75-ft-with-a-diameter-of-2-3-ft-but-may-attain-a-height-of-110-ft-with-a-diameter-of-5-feet-in-forest-grown-gpecimens-the-trunk-la-usually-long-clean-and-with-little-taper-while-in-open-grown-specimens-it-is-usually-short-crown-rather-irregulariy-6lgtlong-babkon-young-trunks-fig-117-rather-smooth-glossy-reddish-brown-marked-with-con-spicuous-white-horizontally-elongated-lenticels-peels-off-in-thin-fllm-like-l-image233795174.htmlRMRGA83J–. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 172 WILD BLACK CHERRY Prunus serotina, Ehrhart FO&M—Usually readies a height of 50-75 ft. with a diameter of 2-3 ft., but may attain a height of 110 ft. with a diameter of 5 feet. In forest-grown gpecimens the trunk la usually long, clean, and with little taper, while In open-grown specimens It is usually short. Crown rather irregularIy-6l>long. BABK—On young trunks (Fig. 117) rather smooth, glossy, reddish-brown, marked with con- spicuous white horizontally-elongated lenticels; peels off in thin fllm-like l
. The Cambridge natural history. Zoology. 426 DINOSAURIA the length of that of the hind-limbs, so that these creatures, wliich were undoubtedly quadrupedal, must have had a very peculiar gait, standing with the head, neck, and shoulders much lower than the arched buck and pelvic region. The ulna has a strong olecranon ; the hand has four functional fingers. The pre- acetabular portion of the ilium is much elongated; the pre-pubic branch stands horizontally, while the post-pubis is closely adpressed to the ischium. The astragalus is fused with the tibia, the calcaneum with the fibula. The foot Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-cambridge-natural-history-zoology-426-dinosauria-the-length-of-that-of-the-hind-limbs-so-that-these-creatures-wliich-were-undoubtedly-quadrupedal-must-have-had-a-very-peculiar-gait-standing-with-the-head-neck-and-shoulders-much-lower-than-the-arched-buck-and-pelvic-region-the-ulna-has-a-strong-olecranon-the-hand-has-four-functional-fingers-the-pre-acetabular-portion-of-the-ilium-is-much-elongated-the-pre-pubic-branch-stands-horizontally-while-the-post-pubis-is-closely-adpressed-to-the-ischium-the-astragalus-is-fused-with-the-tibia-the-calcaneum-with-the-fibula-the-foot-image232173545.htmlRMRDMBM9–. The Cambridge natural history. Zoology. 426 DINOSAURIA the length of that of the hind-limbs, so that these creatures, wliich were undoubtedly quadrupedal, must have had a very peculiar gait, standing with the head, neck, and shoulders much lower than the arched buck and pelvic region. The ulna has a strong olecranon ; the hand has four functional fingers. The pre- acetabular portion of the ilium is much elongated; the pre-pubic branch stands horizontally, while the post-pubis is closely adpressed to the ischium. The astragalus is fused with the tibia, the calcaneum with the fibula. The foot
. Comparative anatomy of the vegetative organs of the phanerogams and ferns;. Plant anatomy; Ferns. COURSE OF THE BUNDLES IN THE STEM. 255 rhizome of Nelumbium speciosum'. The internode between the latter and the next following scale leaf is elongated (as much as 4 feet), the others are short. The elongated internode (Fig. 112) has six blunt angles, so that when horizontally placed one surface is turned upwards (0), another downwards (w), and one edge to each side right and left. It is traversed by 6 large air-canals {t), corresponding to the angles, one small axile one, and two small ones, co Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/comparative-anatomy-of-the-vegetative-organs-of-the-phanerogams-and-ferns-plant-anatomy-ferns-course-of-the-bundles-in-the-stem-255-rhizome-of-nelumbium-speciosum-the-internode-between-the-latter-and-the-next-following-scale-leaf-is-elongated-as-much-as-4-feet-the-others-are-short-the-elongated-internode-fig-112-has-six-blunt-angles-so-that-when-horizontally-placed-one-surface-is-turned-upwards-0-another-downwards-w-and-one-edge-to-each-side-right-and-left-it-is-traversed-by-6-large-air-canals-t-corresponding-to-the-angles-one-small-axile-one-and-two-small-ones-co-image232415659.htmlRMRE3CF7–. Comparative anatomy of the vegetative organs of the phanerogams and ferns;. Plant anatomy; Ferns. COURSE OF THE BUNDLES IN THE STEM. 255 rhizome of Nelumbium speciosum'. The internode between the latter and the next following scale leaf is elongated (as much as 4 feet), the others are short. The elongated internode (Fig. 112) has six blunt angles, so that when horizontally placed one surface is turned upwards (0), another downwards (w), and one edge to each side right and left. It is traversed by 6 large air-canals {t), corresponding to the angles, one small axile one, and two small ones, co
![. A manual of botany. Botany. 288 MANUAL OF BOTANY acquire a more or less star-like shape {fig. 620); and hence such cells are called stellate. These rays may be situated in one plane, or project from all sides of the cell. It is rarely the case that such cells have the rays at regular intervals, or all of one length, but various degrees of irregularity occur, vyhich lead to corresponding irregular forms in such cells. When the growth takes place chiefly m one direction, we have cells which are elongated, either horizontally or vertically. Fig. 622. Fig. 623. Fig. 624. "? @. Fig 625. i .^ Stock Photo](https://c8.alamy.com/comp/RE1JJ6/a-manual-of-botany-botany-288-manual-of-botany-acquire-a-more-or-less-star-like-shape-fig-620-and-hence-such-cells-are-called-stellate-these-rays-may-be-situated-in-one-plane-or-project-from-all-sides-of-the-cell-it-is-rarely-the-case-that-such-cells-have-the-rays-at-regular-intervals-or-all-of-one-length-but-various-degrees-of-irregularity-occur-vyhich-lead-to-corresponding-irregular-forms-in-such-cells-when-the-growth-takes-place-chiefly-m-one-direction-we-have-cells-which-are-elongated-either-horizontally-or-vertically-fig-622-fig-623-fig-624-quot-@-fig-625-i-RE1JJ6.jpg ". A manual of botany. Botany. 288 MANUAL OF BOTANY acquire a more or less star-like shape {fig. 620); and hence such cells are called stellate. These rays may be situated in one plane, or project from all sides of the cell. It is rarely the case that such cells have the rays at regular intervals, or all of one length, but various degrees of irregularity occur, vyhich lead to corresponding irregular forms in such cells. When the growth takes place chiefly m one direction, we have cells which are elongated, either horizontally or vertically. Fig. 622. Fig. 623. Fig. 624. "? @. Fig 625. i .^ Stock Photo")
. A manual of botany. Botany. 288 MANUAL OF BOTANY acquire a more or less star-like shape {fig. 620); and hence such cells are called stellate. These rays may be situated in one plane, or project from all sides of the cell. It is rarely the case that such cells have the rays at regular intervals, or all of one length, but various degrees of irregularity occur, vyhich lead to corresponding irregular forms in such cells. When the growth takes place chiefly m one direction, we have cells which are elongated, either horizontally or vertically. Fig. 622. Fig. 623. Fig. 624. "? @. Fig 625. i .^ Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-manual-of-botany-botany-288-manual-of-botany-acquire-a-more-or-less-star-like-shape-fig-620-and-hence-such-cells-are-called-stellate-these-rays-may-be-situated-in-one-plane-or-project-from-all-sides-of-the-cell-it-is-rarely-the-case-that-such-cells-have-the-rays-at-regular-intervals-or-all-of-one-length-but-various-degrees-of-irregularity-occur-vyhich-lead-to-corresponding-irregular-forms-in-such-cells-when-the-growth-takes-place-chiefly-m-one-direction-we-have-cells-which-are-elongated-either-horizontally-or-vertically-fig-622-fig-623-fig-624-quot-@-fig-625-i-image232376542.htmlRMRE1JJ6–. A manual of botany. Botany. 288 MANUAL OF BOTANY acquire a more or less star-like shape {fig. 620); and hence such cells are called stellate. These rays may be situated in one plane, or project from all sides of the cell. It is rarely the case that such cells have the rays at regular intervals, or all of one length, but various degrees of irregularity occur, vyhich lead to corresponding irregular forms in such cells. When the growth takes place chiefly m one direction, we have cells which are elongated, either horizontally or vertically. Fig. 622. Fig. 623. Fig. 624. "? @. Fig 625. i .^
. Elementary text-book of zoology. Comb. Fig. 67.—Adhesive Cells of Cydippe. (After Hertwig.) Highly Magnified. Head. elongated in the sagittal plane, as in Acthua. Each of these planes corresponds to tvio opposite per-radii. The stomach gives off, near the gullet, four inter-radial canals which run horizontally outwards, each bifiircating into two ad-radials. Each of these joins a long meridional canal running from oral to aboral end just below each row of the combs. The aboral sense-organ consists of a ciliated depression containing small otoliths (cf. Obelia) and probably governs the equili Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/elementary-text-book-of-zoology-comb-fig-67adhesive-cells-of-cydippe-after-hertwig-highly-magnified-head-elongated-in-the-sagittal-plane-as-in-acthua-each-of-these-planes-corresponds-to-tvio-opposite-per-radii-the-stomach-gives-off-near-the-gullet-four-inter-radial-canals-which-run-horizontally-outwards-each-bifiircating-into-two-ad-radials-each-of-these-joins-a-long-meridional-canal-running-from-oral-to-aboral-end-just-below-each-row-of-the-combs-the-aboral-sense-organ-consists-of-a-ciliated-depression-containing-small-otoliths-cf-obelia-and-probably-governs-the-equili-image232090665.htmlRMRDGJ09–. Elementary text-book of zoology. Comb. Fig. 67.—Adhesive Cells of Cydippe. (After Hertwig.) Highly Magnified. Head. elongated in the sagittal plane, as in Acthua. Each of these planes corresponds to tvio opposite per-radii. The stomach gives off, near the gullet, four inter-radial canals which run horizontally outwards, each bifiircating into two ad-radials. Each of these joins a long meridional canal running from oral to aboral end just below each row of the combs. The aboral sense-organ consists of a ciliated depression containing small otoliths (cf. Obelia) and probably governs the equili
. Fossil plants : for students of botany and geology . Paleobotany. 176 MEGALOXYLEAE [CH. cases -4111111.—and their iso-diametric or even horizontally elongated and flattened form. Some of these large metaxylem elements are seen in longitudinal section at m in fig. 448 where the shrinkage and partial decay of the parenchymatous tissue have resulted in the separation of transverse bands of xylem A B. 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 resem Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/fossil-plants-for-students-of-botany-and-geology-paleobotany-176-megaloxyleae-ch-cases-4111111and-their-iso-diametric-or-even-horizontally-elongated-and-flattened-form-some-of-these-large-metaxylem-elements-are-seen-in-longitudinal-section-at-m-in-fig-448-where-the-shrinkage-and-partial-decay-of-the-parenchymatous-tissue-have-resulted-in-the-separation-of-transverse-bands-of-xylem-a-b-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-resem-image232065467.htmlRMRDFDTB–. Fossil plants : for students of botany and geology . Paleobotany. 176 MEGALOXYLEAE [CH. cases -4111111.—and their iso-diametric or even horizontally elongated and flattened form. Some of these large metaxylem elements are seen in longitudinal section at m in fig. 448 where the shrinkage and partial decay of the parenchymatous tissue have resulted in the separation of transverse bands of xylem A B. 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 resem
