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Peridium thin Stock Photos and Images
![Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig. 6. Sort/aria sp.; ascocarp in longitudinal sectionshowing asci, paraphyses and periphyses; X400. II] ASCOMYCETES 39 e-. hymenium. In Desmotascus1, a pyrenomycetous fungus parasitic on Bromelia,the paraphyses are replaced by a thin-walled pseudoparenchyma recallingthe arrangement in the higher Plectomycetes. The Peridium. The peridium or wall of the ascocarp is a weft of sterilehyphae in which the individualfilamcntsare sometimes clear-ly distinguished, sometimesclosely interwoven to form apseudoparenchyma; the wallsof the outer cells are so Stock Photo](https://c8.alamy.com/comp/2AN4P3M/fungi-ascomycetes-ustilaginales-uredinales-fig-6-sortaria-sp-ascocarp-in-longitudinal-sectionshowing-asci-paraphyses-and-periphyses-x400-ii-ascomycetes-39-e-hymenium-in-desmotascus1-a-pyrenomycetous-fungus-parasitic-on-bromeliathe-paraphyses-are-replaced-by-a-thin-walled-pseudoparenchyma-recallingthe-arrangement-in-the-higher-plectomycetes-the-peridium-the-peridium-or-wall-of-the-ascocarp-is-a-weft-of-sterilehyphae-in-which-the-individualfilamcntsare-sometimes-clear-ly-distinguished-sometimesclosely-interwoven-to-form-apseudoparenchyma-the-wallsof-the-outer-cells-are-so-2AN4P3M.jpg "Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig. 6. Sort/aria sp.; ascocarp in longitudinal sectionshowing asci, paraphyses and periphyses; X400. II] ASCOMYCETES 39 e-. hymenium. In Desmotascus1, a pyrenomycetous fungus parasitic on Bromelia,the paraphyses are replaced by a thin-walled pseudoparenchyma recallingthe arrangement in the higher Plectomycetes. The Peridium. The peridium or wall of the ascocarp is a weft of sterilehyphae in which the individualfilamcntsare sometimes clear-ly distinguished, sometimesclosely interwoven to form apseudoparenchyma; the wallsof the outer cells are so Stock Photo")
RM2AN4P3M–Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig. 6. Sort/aria sp.; ascocarp in longitudinal sectionshowing asci, paraphyses and periphyses; X400. II] ASCOMYCETES 39 e-. hymenium. In Desmotascus1, a pyrenomycetous fungus parasitic on Bromelia,the paraphyses are replaced by a thin-walled pseudoparenchyma recallingthe arrangement in the higher Plectomycetes. The Peridium. The peridium or wall of the ascocarp is a weft of sterilehyphae in which the individualfilamcntsare sometimes clear-ly distinguished, sometimesclosely interwoven to form apseudoparenchyma; the wallsof the outer cells are so
RMPG4A4H–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. 196 DIVISION II.—COURSE OF DEVELOPMENT OF FUNGI. With respect to the more minute anatomical structure of the Tuberaceae, it may be further added, that the peripheral layer, known as the peridium, is usually a stout, thick mass of pseudo-parenchymatous tissue. The outer cell-layers are in most cases furnished with thickened walls corresponding in colour to the surface, which varies in shade from brown to black; in a few cases they are thin-walled and have their surface
RMMCK6CR–. Fig. -247.—Pt,-id',-mlum p!ni (coiticolo). o, c. Mycelial stroma developed in the rind; the host-cell.s have become isolated from each other and contain haustoria, h, of the fungus. /-, Basidia composed of much smaller cells than in the needle-inhabiting aecidia. ;<, The peridium. (After R. Hartig.) young plants soon succumb to attack, the struggle with old trees may go on for years. Fresh infection of older stems occurs generally in the higher parts of the tree, where the bark is still thin. Pycnidia (spermogonia) are developed between the rind- parenchyma (periderm) and cork, generally
RM2ANDJA6–Mushrooms and other common fungi . ichthe two layers of the exoperidium separate, the outer remaining as asegmented basal cup, while the inner layer becomes arched and causesthe elevation of the endoperidium. Geaster hygrometricus. Peridium depressed globose; exoperidium splitting at the apex divides into a varia-ble number of strongly hygrometric segments, which are rigidly inrolled when dry andexpanded when moist; endoperidium whitish gray or brown, thin, membranaceous,with a small, irregular mouth. Inner peridium three-fourths to 1 inch in diameter. Segments 6 to 20 in number,2 to 3 inches
RMPG2A1C–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. 3«6 DIVISION II.—COURSE OF DEVELOPMENT OF FUNGI. for ourselves of the only possible form of the parts when enclosed in the peridium. The cavity of the stipe is in this case also opened wide between the lobes ; the somewhat more persistent outer layer of the gleba with its thin walls makes no difference in this respect. To arrive at the form of Phallus caninus or Simblum, we must have the stipe closed at the apex and projecting in a conical shape into the gleba, and th
![. Fig. 21G.âGyriinoiporangium, clavariafforrm. 1, 2, 3, Stages in development of the spore-cushions. U, 5, 6, Isolated spores (enlarged); -5 is thin-coated, the others are thick-coated. 7, Germinating spore with promycelium abjointing sjxiridia ('>). 9, A germinating sporidiiim. (After Tubeuf.) walled, the succeeding ones are thin-walled. Uredospores do not occur. The aecidia have a thick peridium. The teleuto- ^v. Tubeiif : (1) Centralhlatt f. Bakter. v.. ParasiteJihmde, 1891; with a review of the current Literature. (2) "Infectionen mit Gymnosporangium." ForstUch- natunciss. Zei Stock Photo](https://c8.alamy.com/comp/MCK6FD/fig-21ggyriinoiporangium-clavariafforrm-1-2-3-stages-in-development-of-the-spore-cushions-u-5-6-isolated-spores-enlarged-5-is-thin-coated-the-others-are-thick-coated-7-germinating-spore-with-promycelium-abjointing-sjxiridia-gt-9-a-germinating-sporidiiim-after-tubeuf-walled-the-succeeding-ones-are-thin-walled-uredospores-do-not-occur-the-aecidia-have-a-thick-peridium-the-teleuto-v-tubeiif-1-centralhlatt-f-bakter-v-parasitejihmde-1891-with-a-review-of-the-current-literature-2-quotinfectionen-mit-gymnosporangiumquot-forstuch-natunciss-zei-MCK6FD.jpg ". Fig. 21G.âGyriinoiporangium, clavariafforrm. 1, 2, 3, Stages in development of the spore-cushions. U, 5, 6, Isolated spores (enlarged); -5 is thin-coated, the others are thick-coated. 7, Germinating spore with promycelium abjointing sjxiridia ('>). 9, A germinating sporidiiim. (After Tubeuf.) walled, the succeeding ones are thin-walled. Uredospores do not occur. The aecidia have a thick peridium. The teleuto- ^v. Tubeiif : (1) Centralhlatt f. Bakter. v.. ParasiteJihmde, 1891; with a review of the current Literature. (2) "Infectionen mit Gymnosporangium." ForstUch- natunciss. Zei Stock Photo")
RMMCK6FD–. Fig. 21G.âGyriinoiporangium, clavariafforrm. 1, 2, 3, Stages in development of the spore-cushions. U, 5, 6, Isolated spores (enlarged); -5 is thin-coated, the others are thick-coated. 7, Germinating spore with promycelium abjointing sjxiridia ('>). 9, A germinating sporidiiim. (After Tubeuf.) walled, the succeeding ones are thin-walled. Uredospores do not occur. The aecidia have a thick peridium. The teleuto- ^v. Tubeiif : (1) Centralhlatt f. Bakter. v.. ParasiteJihmde, 1891; with a review of the current Literature. (2) "Infectionen mit Gymnosporangium." ForstUch- natunciss. Zei
RM2AFR329–. Synopsis of the British Basidiomycetes ; a descriptive catalogue of the drawings and specimens in the Department of botany, British museum. B. ovalispora Cooke & Mass. (from the oval spores) a b.Subglobose. Cor. very thin, subpersistent towards base, whitish or ochreous, inner layer thin, flaccid, smooth, dull lead-colour, dehiscing by an irregular stoma. Cap. and Spores brown. On the ground. Diam. 2 in. Formerly included with 2078 and 2079, butdiffering in the oval spores and thinner cortex. 478 SCLERODERMACE/E Polysaccum Fam. IX. SCLERODERMACEjE Peridium thick with a well-defined base, som
RMPG453N–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. i66 MYCOLOGY Family 4. Ascobolace^.—The apothecia of the fungi of this family are unstalked. They are superficial and grow up on manure. The peridium is mostly thin, or wanting, and the hypothecium, which is well developed, consists of rounded parenchyma-like cells. In Ascobolus, the ascospores are discharged from the asci by a squirting. Fig. 58.—A, B, Lachnea sculellala. A, Habit; B, ascus with paraphysis; C, D, Lachnea hemisphierica; C, habit; D, ascus with paraphysiS; E, Sarcospktsr
![. ? Fio. 24".—Pcridermium pini {corlieolu). c, n. Mycelial stroma developed in tlic rind; the host-cells have become isolated from each other and contain haustoria, h, of the fungus, h, Basidia composed of much smaller cells than in the needle-inhabiting aecidia. j>, The peridium. (After R. Hartig.) young plants soon succumb to attack, the struggle witli old trees may go on for years. Fresh infection of older stems occurs generally in tb.' biglicr parts of the tree, where the bark is still thin. Pycnidia (spermogonia) are developed between the rind- parenchyma (periderm) and cork, gene Stock Photo](https://c8.alamy.com/comp/MCK622/fio-24quotpcridermium-pini-corlieolu-c-n-mycelial-stroma-developed-in-tlic-rind-the-host-cells-have-become-isolated-from-each-other-and-contain-haustoria-h-of-the-fungus-h-basidia-composed-of-much-smaller-cells-than-in-the-needle-inhabiting-aecidia-jgt-the-peridium-after-r-hartig-young-plants-soon-succumb-to-attack-the-struggle-witli-old-trees-may-go-on-for-years-fresh-infection-of-older-stems-occurs-generally-in-tb-biglicr-parts-of-the-tree-where-the-bark-is-still-thin-pycnidia-spermogonia-are-developed-between-the-rind-parenchyma-periderm-and-cork-gene-MCK622.jpg ". ? Fio. 24".—Pcridermium pini {corlieolu). c, n. Mycelial stroma developed in tlic rind; the host-cells have become isolated from each other and contain haustoria, h, of the fungus, h, Basidia composed of much smaller cells than in the needle-inhabiting aecidia. j>, The peridium. (After R. Hartig.) young plants soon succumb to attack, the struggle witli old trees may go on for years. Fresh infection of older stems occurs generally in tb.' biglicr parts of the tree, where the bark is still thin. Pycnidia (spermogonia) are developed between the rind- parenchyma (periderm) and cork, gene Stock Photo")
RMMCK622–. ? Fio. 24".—Pcridermium pini {corlieolu). c, n. Mycelial stroma developed in tlic rind; the host-cells have become isolated from each other and contain haustoria, h, of the fungus, h, Basidia composed of much smaller cells than in the needle-inhabiting aecidia. j>, The peridium. (After R. Hartig.) young plants soon succumb to attack, the struggle witli old trees may go on for years. Fresh infection of older stems occurs generally in tb.' biglicr parts of the tree, where the bark is still thin. Pycnidia (spermogonia) are developed between the rind- parenchyma (periderm) and cork, gene
RMRDTP6P–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. ^B Ervsiphales The Erysiphales are characterized by an abundant superficial mycelium, which may be white (colourless) or dark-coloured. The perithecia are spherical, ovoid or flattened, and are usually without an ostiole; the peridium is thin and membranous; the asci are arranged in a regular layer at the base of the perithecium. The group includes some 600 species, the majority of which are external parasites or epiphytes upon the leaves of higher plants. They are grouped into three families, of which the Microthyriaceae are but little k
RMPG2C0A–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. CHAPTER V.—COMPARATIVE REVIEW.—GASTROMFCETES. 3^3 two outer layers and of the inner wall of the peridium, so far as it surrounds the gleba, advances farij)assu with the enlargement of the stipe. On the other hand, the tissue in the cone and in the portion of the central column beneath the gleba diminishes in proportion as the stipe enlarges, till at length in Ph. caninus (Fig. 153 j) it is only a thin white membrane ; in Ph. impudicus it remains of larger size underne
![. Fig. 21G.â&>)â«os;)o, the spore-cjishions. 4, others are thick-coated. iian clo.riiiuiiifoi-iiii. 1, J, â :. M.i-i - m .u v. h.|.in.-nt of . Isolated spores (enlarged); â ', is thin-coated, the Germinating .?pore with proniyceliuin abjointing sporidia (.S). 9, A germinating sporidiuui. (After Tubeuf.) walled, the succeeding ones are tliin-walled. Uredospores do not occur. The aecidia have a thick peridium. The teleuto- ^ V. Tubeuf: (1) CentraUilaft f. Baiter, k. J'arasidnkunth, 1S91 ; with a review of the current Literature. (2) "Infectionen mit (iymnosporangium." ForMch- n Stock Photo](https://c8.alamy.com/comp/MCK637/fig-21gampgtoso-the-spore-cjishions-4-others-are-thick-coated-iian-cloriiiuiiifoi-iiii-1-j-mi-i-m-u-v-hin-nt-of-isolated-spores-enlarged-is-thin-coated-the-germinating-pore-with-proniyceliuin-abjointing-sporidia-s-9-a-germinating-sporidiuui-after-tubeuf-walled-the-succeeding-ones-are-tliin-walled-uredospores-do-not-occur-the-aecidia-have-a-thick-peridium-the-teleuto-v-tubeuf-1-centrauilaft-f-baiter-k-jarasidnkunth-1s91-with-a-review-of-the-current-literature-2-quotinfectionen-mit-iymnosporangiumquot-formch-n-MCK637.jpg ". Fig. 21G.â&>)â«os;)o, the spore-cjishions. 4, others are thick-coated. iian clo.riiiuiiifoi-iiii. 1, J, â :. M.i-i - m .u v. h.|.in.-nt of . Isolated spores (enlarged); â ', is thin-coated, the Germinating .?pore with proniyceliuin abjointing sporidia (.S). 9, A germinating sporidiuui. (After Tubeuf.) walled, the succeeding ones are tliin-walled. Uredospores do not occur. The aecidia have a thick peridium. The teleuto- ^ V. Tubeuf: (1) CentraUilaft f. Baiter, k. J'arasidnkunth, 1S91 ; with a review of the current Literature. (2) "Infectionen mit (iymnosporangium." ForMch- n Stock Photo")
RMMCK637–. Fig. 21G.â&>)â«os;)o, the spore-cjishions. 4, others are thick-coated. iian clo.riiiuiiifoi-iiii. 1, J, â :. M.i-i - m .u v. h.|.in.-nt of . Isolated spores (enlarged); â ', is thin-coated, the Germinating .?pore with proniyceliuin abjointing sporidia (.S). 9, A germinating sporidiuui. (After Tubeuf.) walled, the succeeding ones are tliin-walled. Uredospores do not occur. The aecidia have a thick peridium. The teleuto- ^ V. Tubeuf: (1) CentraUilaft f. Baiter, k. J'arasidnkunth, 1S91 ; with a review of the current Literature. (2) "Infectionen mit (iymnosporangium." ForMch- n
RMRDTP6Y–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. 78 PLECTOMYCETES [CH.. ^B Ervsiphales The Erysiphales are characterized by an abundant superficial mycelium, which may be white (colourless) or dark-coloured. The perithecia are spherical, ovoid or flattened, and are usually without an ostiole; the peridium is thin and membranous; the asci are arranged in a regular layer at the base of the perithecium. The group includes some 600 species, the majority of which are external parasites or epiphytes upon the leaves of higher plants. They are grouped into three families, of which the Microthyr
RMPG4DHJ–. The mushroom book. A popular guide to the identification and study of our commoner Fungi, with special emphasis on the edible varieties. Mushrooms; Cookery (Mushrooms); cbk. Puffballs Cup-shaped Puffball (Edible) Calvatia cyathiformis Peridium—Large, top-shaped. Bark or Outer Coat—Thin, adherent, smooth, and continuous, easily peeling off. Inner Coat—Pale to dark purple, loosely woven, fragile at matur- ity, breaking up into fragments from above downward. Subgleba—Short and. thick, with cord-like root, persistent, cup- shaped, occupying }4->^ the peridium. Spores and Threads—Violet to dar
RMREF7CG–. Comparative morphology of Fungi. Fungi. PEZIZALES 321 sitic families, the Mollisiaceae and Helotiaceae, and the saprophytic Geoglossaceae. In the Mollisiaceae and Helotiaceae the peripheral layers are developed to a special peridium; in the Geoglossaceae the hypothe- cium is homogeneous but differentiated into pileus and stipe; in the Mollisiaceae the peridium is paraplectenchymatic and often built of dark, thick-walled cells; in the Helotiaceae it is prosenchymatic and formed of hyaline, thin-walled cells.. Fig. 212.—Pseudopeziza Ribis, a, with its secondary spore form, Gloeosporium Ribis,
RMPG4DJ4–. The mushroom book. A popular guide to the identification and study of our commoner Fungi, with special emphasis on the edible varieties. Mushrooms; Cookery (Mushrooms); cbk. Sterile base Calvatia Section of Calvatia Brain-shaped Calvatia (Edible) Calvatia craniformis Peridium or Pouch—Very large, obovoid or top-shaped, depressed above. Bark or Outer Coat—Smooth, very thin and fragile, easily peel- ing off. Pallid or greyish, often with a reddish tinge ; often cai-va'-shi-a Cra-nl-fSr'-mls 126. Please note that these images are extracted from scanned page images that may have been digitally e
RMREFAN9–. Comparative morphology and biology of the fungi, mycetozoa and bacteria. Fungi -- Morphology; Bacteria -- Morphology. 326 DIVISION II.—COURSE OF DEVELOPMENT OF FUNGI. for ourselves of the only possible form of the parts when enclosed in the peridium. The cavity of the stipe is in this case also opened wide between the lobes ; the somewhat more persistent outer layer of the glcba with its thin walls makes no difference in this respect. To arrive at the form of Phallus caninus or Simblum, we must have the stipe closed at the apex and projecting in a conical shape into the gl( li.i. and the lob
RMRDCETY–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. 3«6 DIVISION II.—COURSE OF DEVELOPMENT OF FUNGI. for ourselves of the only possible form of the parts when enclosed in the peridium. The cavity of the stipe is in this case also opened wide between the lobes ; the somewhat more persistent outer layer of the gleba with its thin walls makes no difference in this respect. To arrive at the form of Phallus caninus or Simblum, we must have the stipe closed at the apex and projecting in a conical shape into the gleba, and th
RMRDCT1C–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. 196 DIVISION II.—COURSE OF DEVELOPMENT OF FUNGI. With respect to the more minute anatomical structure of the Tuberaceae, it may be further added, that the peripheral layer, known as the peridium, is usually a stout, thick mass of pseudo-parenchymatous tissue. The outer cell-layers are in most cases furnished with thickened walls corresponding in colour to the surface, which varies in shade from brown to black; in a few cases they are thin-walled and have their surface
![. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. n] ASCOMYCETES 39 (i-«-.. hymenium. In Desmotascus^, a pyrenomycetous fungus parasitic on Bromelia, the paraphyses are replaced by a thin-walled pseudoparenchyma recalling the arrangement in the higher Plectomycetes. The Peridium. The peridium or wall of the ascocarp is a weft of sterile hyphae in which the individual filamentsare sometimes clear- '^- ly distinguished, sometimes closely interwoven to form a pseudoparenchyma; the walls of the outer cells are some- times considerably thickened and may be variously pig- mented ; in many case Stock Photo](https://c8.alamy.com/comp/RDX1TR/fungi-ascomycetes-ustilaginales-uredinales-fungi-n-ascomycetes-39-i-hymenium-in-desmotascus-a-pyrenomycetous-fungus-parasitic-on-bromelia-the-paraphyses-are-replaced-by-a-thin-walled-pseudoparenchyma-recalling-the-arrangement-in-the-higher-plectomycetes-the-peridium-the-peridium-or-wall-of-the-ascocarp-is-a-weft-of-sterile-hyphae-in-which-the-individual-filamentsare-sometimes-clear-ly-distinguished-sometimes-closely-interwoven-to-form-a-pseudoparenchyma-the-walls-of-the-outer-cells-are-some-times-considerably-thickened-and-may-be-variously-pig-mented-in-many-case-RDX1TR.jpg ". Fungi, ascomycetes, ustilaginales, uredinales. Fungi. n] ASCOMYCETES 39 (i-«-.. hymenium. In Desmotascus^, a pyrenomycetous fungus parasitic on Bromelia, the paraphyses are replaced by a thin-walled pseudoparenchyma recalling the arrangement in the higher Plectomycetes. The Peridium. The peridium or wall of the ascocarp is a weft of sterile hyphae in which the individual filamentsare sometimes clear- '^- ly distinguished, sometimes closely interwoven to form a pseudoparenchyma; the walls of the outer cells are some- times considerably thickened and may be variously pig- mented ; in many case Stock Photo")
RMRDX1TR–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. n] ASCOMYCETES 39 (i-«-.. hymenium. In Desmotascus^, a pyrenomycetous fungus parasitic on Bromelia, the paraphyses are replaced by a thin-walled pseudoparenchyma recalling the arrangement in the higher Plectomycetes. The Peridium. The peridium or wall of the ascocarp is a weft of sterile hyphae in which the individual filamentsare sometimes clear- '^- ly distinguished, sometimes closely interwoven to form a pseudoparenchyma; the walls of the outer cells are some- times considerably thickened and may be variously pig- mented ; in many case
RMREFBFE–. Comparative morphology and biology of the fungi, mycetozoa and bacteria. Fungi -- Morphology; Bacteria -- Morphology. 196 DIVISION II.—COURSE OF DEVELOPMENT OF FUNGI. With respect to the more minute anatomical structure of the Tuberaceae, it may be further added, that the peripheral layer, known as the peridium, is usually a stout, thick mass of pseudo-parenchymatous tissue. The outer cell-layers are in most cases furnished with thickened walls corresponding in colour to the surface, which varies in shade from brown to black ; in a few cases they arc thin-walled and have their surface covere
RMREF5WB–. Comparative morphology of Fungi. Fungi. UREDINALES 573 tinguish them. The initial cells change entirely into teliospores instead of dividing into spores and intercalary cells. They remain connected with one another and, by the increase of new cells on the lower side, form a lengthening column which finally ruptures the peridium and passes out through the epidermis (Fig. 384, 1). The teliospores are thin-walled, apically thickened and capable of immediate germination at maturity (Fig. 384, 2 to 7).. Fig. 384.—Cronaritium ribicola. Short column of teliospores with teliospores already germinate
RMREER0K–. Comparative morphology of Fungi. Fungi. GASTEROMYCETES 481 sponds to the volva of the Clathraceae), the pseudoparenchyma layer P, a thin, tough, periclinal, fibrous layer F, and the collenchyma layer C. The outer cells of the collenchyma layer elongate radially, become prismatic and assume a peculiar palisade structure; the innermost layer next the gleba consists of large spherical cells, called cystidia by earlier writers but from their cytology probably basidia. At the top of the fructifica- tion the peridium is weaker; there it is chiefly composed of isodiametric lis.. .'GF â :>;.iVJX;
RMRE58K5–. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. Biol. Klebahn, Ztschr. Pflanzenkr. XVII, 1907, S.149; Fraser, Mycologia, IV, 1912, p.191. Spermagonia and aecia unknown. Uredia hypophyllous, scattered or in groups, frequently very abundant, round, small, 0.4 mm across, yellow, covered by the epidermis and the hemispherical peridia; peridial cells minute, thin-walled, smooth, except for the cells surrounding the apical pore of the peridium, which are large, thick-walled, smooth or sparsely echinulate. Urediospores globoid or ellipsoid, 15 —22 X 14 —19)Lt,with colorless
RMRH2RR2–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 330 (K'HKOI'SOKA JUcidiospores. .Kcidi.i scattered pretty regularly over the lower surface of the leaves, not very crowded, shortly cylindrical, white, with born revolute margin; spores irregularly oblong, colourless, thin- walled, very delicately verruculose, 18—30 x 15—21/*. [Uredospores. Sori hypophyllous, small, roundish, scattered, not more than mm. diam.; spore-mass grey- ish or yellowish-white, surrounded by a circle of paraphyses. which form a kind of peridium, but their upper ends, w
RMRE58KY–. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. Telia amphigenous, mostly hypophyllous. Teliospores intraepider- mal, globoid or elongate, frequently angular, 2- to many-celled (mostly 2- to 5-celled), 1 5 — 36/u across; walls colorless, smooth, thin, 1 /u . Hiratsuka indicated the presence of rudimentary clavate paraphyses in the uredia, not mentioning peridia. In collections from the Far East Tranzschel noted (under the laterally opening pores covered by the epidermis) a tissue of minute polygonal cells, doubtless belonging to the peridium. Uredio- and teliospores
RMRDCF6D–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. CHAPTER V.—COMPARATIVE REVIEW.—GASTROMFCETES. 3^3 two outer layers and of the inner wall of the peridium, so far as it surrounds the gleba, advances farij)assu with the enlargement of the stipe. On the other hand, the tissue in the cone and in the portion of the central column beneath the gleba diminishes in proportion as the stipe enlarges, till at length in Ph. caninus (Fig. 153 j) it is only a thin white membrane ; in Ph. impudicus it remains of larger size underne
RMRH2RPD–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 330 OCHROPSORA jEcidiospores. ^-Ecidia scattered pretty regularly over the lower surface of the leaves, not very crowded, shortly cylindrical, white, with torn revolute margin; spores irregularly oblong, colourless, thin- walled, very delicately verruculose, 1S 30 X 15—21IX. [Uredospores. Sori hypophyllous, small, roundish, scattered, not more than i mm. diam.; spore-mass grey- ish or yellowish-white, surrounded by a circle of paraphyses, which form a kind of peridium, but their upper ends, when mature, are fre
RMRDEFJ9–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. i66 MYCOLOGY Family 4. Ascobolace^.—The apothecia of the fungi of this family are unstalked. They are superficial and grow up on manure. The peridium is mostly thin, or wanting, and the hypothecium, which is well developed, consists of rounded parenchyma-like cells. In Ascobolus, the ascospores are discharged from the asci by a squirting. Fig. 58.—A, B, Lachnea sculellala. A, Habit; B, ascus with paraphysis; C, D, Lachnea hemisphierica; C, habit; D, ascus with paraphysiS; E, Sarcospktsr
RMREEPXE–. Comparative morphology of Fungi. Fungi. Fig. 312.—Gautieria graveolens. A. Habit. B. Section of fructification, showing colum- ella and tramal plates. ( X 2; after E. Fischer, 1900.) In Gautieria we have a gradual degeneration of the peridium from such species as G. Rodwayi and G. Parksiana with thick peridia, through undescribed species with thin evanescent peridia, to species where the peri- dium is absent at maturity, although still present in young individuals. Only this last group has been studied ontogenetically (Fitzpatrick, 1913). The fructifications are spherical, furrowed and 0.5 t
RMRE2G7P–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 330 OCHROPSORA ^cidiospores. ^cidia scattered pretty regularly over the lower surface of the leaves, not very crowded, shortly cylindrical, white, with torn revolute margin; spores irregularly oblong, colourless, thin- walled, very delicately verruculose, 18—30 X 15—21 /J.. [ Uredospores. Sori hypophyllous, small, roundish, scattered, not more than A mm. diam.; spore-mass grey- ish or yellowish-white, suiTounded by a circle of paraphyses, which form a kind of peridium, but their upper ends, when mature, are fre
RMREEPPM–. Comparative morphology of Fungi. Fungi. 492 COMPARATIVE MORPHOLOGY OF FUNGI and nurse tissue, has all been used up, the whole gleba gelifies and forms a thin, collapsed lining of the peridium, leaving a large, empty space in the middle. The mycelium is wholly binucleate. As usual, fusion of the dicaryon occurs in the basidium. The fusion nucleus forms six nuclei which migrate into the spores and divide once, producing binucleate basidiospores. In Jaczewskia, a rare genus found once in Russia and once in British Columbia, the fructification consists of a gleba supported on a large sterile bas
RMRH28W3–. The British rust fungi (Uredinales), their biology and classification. Uredineae. GERMINATION OF ^CIDIOSPORES 7 tapping are mature enough to germinate, and even they, owing to their thin walls, may lose this power in a few days according to circumstances. Especially can they be killed by rapid. Fig. 5. P. Caricis. a, three cells of the peridium, on Nettle ; b, a cell in optical section; e, the same in surface-view ; d, two ascidiospores. x 600. drying. Instances are known, however, where some of them, kept in a cool place, retained their capacity for germination about seventy days, though mo
RMRE1RJG–. The mushroom book : a popular guide to the identification and study of our commoner Fungi, with special emphasis on the edible varieties . Mushrooms; Mushrooms, Edible; Cookery (Mushrooms); cbk. Puffballs Cup-shaped Puffball (Edible) Calvatia cyathiformis Peridium—Large, top-shaped. Bark or Outer Coat—Thin, adherent, smooth, and continuous, easily peeling off. Inner Coat—Pale to dark purple, loosely woven, fragile at matur- ity, breaking up into fragments from above downward. Subgleba—Short and thick, with cord-like root, persistent, cup- shaped, occupying yi-% the peridium. Spores and Threa
RMRH1GAP–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 372 CALYPTOSPOB CALYPTOSPORA J. Kiilm. Eetercecious. Teloutospoivs intracellular, occupying the swollen epidermal cells all round the stem of the host for a considerable distance, otherwise as in Pucciniastrum. No uredo. lv-idi.-i cylindrical, with a thin peridium; aecidiospores verrucose, without germ-pores, and with no smooth spot. Calyptospora Goeppertiana Kiihn. jEcidium columnare A. et S. Consp. p. 121, pi. 5, f. 1. Peridemiium columnareS. et K.; Cooke, Handb. p. 535; Micr. Fung. p. 194,
RMRH2RMT–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 334 ENDOPHYLLUM Teleutospores. Sori hypophyllous, or occasionally epiphyllous, more or less covering the whole surface, crowded, secidium-like, sunk in the leaf-tissue Avhich is slightly swollen, surrounded by a thin peridium in the shape of a shallow cup, with a short.. Fig. 251. E. Euphorbiae-silraticae. a, affected leaf of E. amycjdnloides, nat. size; h, ascidio-telentospore; c, germinating spore ; d, another, not so advanced, x 540 ; e, inner, and /, outer wall of peridium-cell, x 600. torn, slightly re vol
RMREFAPH–. Comparative morphology and biology of the fungi, mycetozoa and bacteria. Fungi -- Morphology; Bacteria -- Morphology. CHA PTER V. — COM PA RATIVE RE VIE W. — GA S TR OMYCE TES. 3*3 two outer layers and of the inner wall of the peridium, so far as it surrounds the gleba, advances pari passu with the enlargement of the stipe. On the other hand, the tissue in the cone and in the portion of the central column beneath the gleba diminishes in proportion as the stipe enlarges, till at length in Ph. caninus (Fig. 153y) it is only a thin white membrane ; in Ph. impudicus it remains of larger size und
RMRDXTJC–. The mushroom book : a popular guide to the identification and study of our commoner fungi, with special emphasis on the edible varieties . Mushrooms; Mushrooms, Edible; Cookery (Mushrooms); cbk. .. Sterile base Calvatia Section of Calvatia Brain-shaped Calvatia (Edible) Calvatia craniformis Peridium or Pouch—Very large, obovoid or top-shaped, depressed above. Bark or Outer Coat—Smooth, very thin and fragile, easily peel- ing off. Pallid or greyish, often with a reddish tinge ; often Cal-va'-sM-a Cra-nl-for'-mls 126. Please note that these images are extracted from scanned page images that ma
RMRH28XF–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. GERMINATION OF vECIDIOSPORES 7 tapping are mature enough to germinate, and even they, owing to their thin walls, may lose this power in a few days according to circumstances. Especially can they be killed by rapid. Fig. 5. P. Caricis. a, three cells of the peridium, on Nettle ; b, a cell in optical section; c, the same in surface-view ; d, two acidiospores. x 600. drying. Instances are known, however, where some of them, kept in a cool place, retained their capacity for germination about sevent
RMRDETC0–. The mushroom book. A popular guide to the identification and study of our commoner Fungi, with special emphasis on the edible varieties. Mushrooms; Cookery (Mushrooms); cbk. Sterile base Calvatia Section of Calvatia Brain-shaped Calvatia (Edible) Calvatia craniformis Peridium or Pouch—Very large, obovoid or top-shaped, depressed above. Bark or Outer Coat—Smooth, very thin and fragile, easily peel- ing off. Pallid or greyish, often with a reddish tinge ; often cai-va'-shi-a Cra-nl-fSr'-mls 126. Please note that these images are extracted from scanned page images that may have been digitally e
RMRDXTJ4–. The mushroom book : a popular guide to the identification and study of our commoner fungi, with special emphasis on the edible varieties . Mushrooms; Mushrooms, Edible; Cookery (Mushrooms); cbk. Puffballs Cup-shaped Puffball (Edible) Calvatia cyathiformis Peridiu?n—Large, top-shaped. Bark or Outer Coat—Thin, adherent, smooth, and continuous, easily peeling off. Inner Coat—Pale to dark purple, loosely woven, fragile at matur- ity, breaking up into fragments from above downward. Subgleba—Short and thick, with cord-like root, persistent, cup- shaped, occupying Vi-y? the peridium. Spores and Thr
RMRE2G71–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 334 ENDOPHYLLUM Teleutospores. Sori hypophyllous, or occasionally epiphyllous, more or less covering the whole surface, crowded, secidium-like, sunk in the leaf-tissue which is slightly swollen, surrounded by a thin peridium in the shape of a shallow cup, with a short,. Fig. 251. -E. Euphoriiae-silvaticae. a, affected leaf of E. amygdaloides, nat. size; 6, a3oidio-teleutospore; c, germihating spore ; d, another, not so advanced, x 540; e, inner, and /, outer wall of peridium-cell, x 600. torn, slightly revolute
RMRDETBB–. The mushroom book. A popular guide to the identification and study of our commoner Fungi, with special emphasis on the edible varieties. Mushrooms; Cookery (Mushrooms); cbk. Puffballs Cup-shaped Puffball (Edible) Calvatia cyathiformis Peridium—Large, top-shaped. Bark or Outer Coat—Thin, adherent, smooth, and continuous, easily peeling off. Inner Coat—Pale to dark purple, loosely woven, fragile at matur- ity, breaking up into fragments from above downward. Subgleba—Short and. thick, with cord-like root, persistent, cup- shaped, occupying }4->^ the peridium. Spores and Threads—Violet to dar
RMRH1GA9–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 372 CALYPTOSPORA CALYPTOSPORA J. Klihn. Heteroecious. Teleutospores intracellular, occupying the swollen epidermal cells all round the stem of the host for a considerable c^istance, otherwise as in Pucciniastrum. No uredo. vEcidia cylindrical, with a thin peridium; secidiospores verrucose, without gerin-pores, and with no smooth spot. Calyptospora Goeppertiana Klihn. ^cidium columnure A. et S. Consp. p. 121, pi. 5, f. 4. Peridermium columnare S. et K.; Cooke, Handb. p. 535; Micr. Fung. p. 194, pi. 2, f 27, 28.
RMRE2G05–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 372 CALYPTOSPOEA CALYPTOSPORA J. Kuhn. Heteroecious. Teleutospores intracellular, occupying the swollen epidermal cells all round the stem of the host for a considerable distance,, otherwise as in Pucciniastrum. No uredo. ^cidia cylindrical, with a thin peridium; secidiospores verrucose, without germ-pores, and with no smooth spot. Calyptospora Goeppertiana Kuhn. JEcidium columnare A. et S. Consp. p. 121, pi. 5, f. 4. Peridermium columnare S. et K.; Cooke, Handb. p. 535; Micr. Fung. p. 194, pi. 2, f 27, 28. ? ^
RMRH2RND–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 334 i:lHiNIVLLUM Teleutospores. Sori hypophyllous or occasionally epiphyllous, more or less covering the whole surface, crowded, aecidium-like, sunk in tlif leaf-tissue which is slightly swollen, surrounded by a thin peridium in the shape of a shallow cup, with a short,. Fig. 251. E. Euphorbiae-silvaticae. a, affected leaf of E. amygdaloid.es, nat. size; b, aecidio-teleutospore; c, germinating spore; d, another, not so advanced, x 540; e, inner, and /, outer wall of peridium-cell, x GOO. torn,
RMRE58H0–. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. On Rubiaceae 1. Phakopsora punctiformis (Barcl. et Diet.) Diet., Ber. Deutsch. bot. Ges. XIII, 1895, S. 333; Syd., Monogr. Ured. Ill, 1915, p. 408, tab. XVI, fig. 151,152. Uredia amphigenous, minute, about 0.1—0.1 5 mm across, yellowish-brown, covered with a thin peridium of small cells. Urediospores ellipsoid or elongate-pyriform, 22 —32 X 16 —21 ju; walls thin, echinulate. Among the spores are clavate or clavate-bulbous paraphyses, up to 30/j across. Telia hypophyllous, scattered, minute, 0.1—0.1 5 mm across, brown. T
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