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Ascus Stock Photos and Images
RMMCK5FT–. Flo. 115.—Ploicrightia mor- bosa. Ascus, with eight spores. Spores in gcrtnina- tion. Filamentous jNira- physes. (Cop. fruin Farlow.) I'll.. i.PloirngUli<i „ioibom. (v. Tiibciif jiliut.) injurious and widely distributed disease of various species of rrunas, especially plum and cherry. Tlie living branches ami twigs become coated with a crust of warty excrescences, and at the same time are more or less thickened and dcrniiui'd. A mycelium permeates the tissues of tliose swollen Iwii^s, and forms black crusty stromata in which the perithecia are embedded. The perithecia contain sim})le p
RM2AFMDAN–. Breeder and sportsman. ITHACA GUNS THIS illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun, it can only be appreciated after you have handled=- and examined the gun for yourself. It is fitted with the best Dam- ascus or Wnitworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid In gold. Send for Art Cata-log describing our complete line, 17 grades, ranging in price from $17.75net to $300
![. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. X 1200 .:r—^ '' X «(lO. X 600 MELANOTHECA GELATINOSA Nyl. a. Whole plant, h. Portion of thallus and peritheoia. c. Vertical section of thallus. A. Thallus in surface view. c. Vertical section of peritheoia. /". Ascus and paraphysis. g. Spores.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stock Photo](https://c8.alamy.com/comp/PG21W2/a-monograph-of-lichens-found-in-britain-being-a-descriptive-catalogue-of-the-species-in-the-herbarium-of-the-british-museum-lichens-x-1200-r-x-lo-x-600-melanotheca-gelatinosa-nyl-a-whole-plant-h-portion-of-thallus-and-peritheoia-c-vertical-section-of-thallus-a-thallus-in-surface-view-c-vertical-section-of-peritheoia-quot-ascus-and-paraphysis-g-spores-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-PG21W2.jpg ". A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. X 1200 .:r—^ '' X «(lO. X 600 MELANOTHECA GELATINOSA Nyl. a. Whole plant, h. Portion of thallus and peritheoia. c. Vertical section of thallus. A. Thallus in surface view. c. Vertical section of peritheoia. /". Ascus and paraphysis. g. Spores.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stock Photo")
RMPG21W2–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. X 1200 .:r—^ '' X «(lO. X 600 MELANOTHECA GELATINOSA Nyl. a. Whole plant, h. Portion of thallus and peritheoia. c. Vertical section of thallus. A. Thallus in surface view. c. Vertical section of peritheoia. /". Ascus and paraphysis. g. Spores.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original
![. ^'^'^ fl,. fJ â Jf f^T .7'" VG.z,o.âSpliacros(ilbeflavid<i. i, leaf showing disease ; 2, section showing conidia form ; 3, surface view of white spot bear- ing conidial stage of fungus; 4, section showing perithecia ; 5, two perithecia; 6, ascus containing eiglit spores. Fig. i reduced ; remainder nmg. had been carefully packed, and arrived in a good condition for experimenting with. These were placed in Petri dishes on sterilised damp blotting-paper. At the expiration of seven weeks dense groups of minute, bright-red perithecia Stock Photo](https://c8.alamy.com/comp/MCTK54/fl-fj-jf-ft-7quot-vgzospliacrosilbeflavidlti-i-leaf-showing-disease-2-section-showing-conidia-form-3-surface-view-of-white-spot-bear-ing-conidial-stage-of-fungus-4-section-showing-perithecia-5-two-perithecia-6-ascus-containing-eiglit-spores-fig-i-reduced-remainder-nmg-had-been-carefully-packed-and-arrived-in-a-good-condition-for-experimenting-with-these-were-placed-in-petri-dishes-on-sterilised-damp-blotting-paper-at-the-expiration-of-seven-weeks-dense-groups-of-minute-bright-red-perithecia-MCTK54.jpg ". ^'^'^ fl,. fJ â Jf f^T .7'" VG.z,o.âSpliacros(ilbeflavid<i. i, leaf showing disease ; 2, section showing conidia form ; 3, surface view of white spot bear- ing conidial stage of fungus; 4, section showing perithecia ; 5, two perithecia; 6, ascus containing eiglit spores. Fig. i reduced ; remainder nmg. had been carefully packed, and arrived in a good condition for experimenting with. These were placed in Petri dishes on sterilised damp blotting-paper. At the expiration of seven weeks dense groups of minute, bright-red perithecia Stock Photo")
RMMCTK54–. ^'^'^ fl,. fJ â Jf f^T .7'" VG.z,o.âSpliacros(ilbeflavid<i. i, leaf showing disease ; 2, section showing conidia form ; 3, surface view of white spot bear- ing conidial stage of fungus; 4, section showing perithecia ; 5, two perithecia; 6, ascus containing eiglit spores. Fig. i reduced ; remainder nmg. had been carefully packed, and arrived in a good condition for experimenting with. These were placed in Petri dishes on sterilised damp blotting-paper. At the expiration of seven weeks dense groups of minute, bright-red perithecia
RM2AGB367–. Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm. nd up one or several outgrowths, or stroma,with a knob-like end of a yellowish-brown color. In the hyphal tissue,which comprises the knob-like portion of the stroma, flask-shaped peri-thecia are formed with short necks and slightly protruding ostioles. Theasci contained in these perithecia are elongated and contain eight needle-shaped ascospores, which measure 60 to 70/i in length, and issue from thetip of the ascus by a small opening. These ascospores bud off condio- 28 POISON
RMPG4GK8–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 153 B. polymorpha (Oed.) Wett.*-' *' is a common saprophyte on bark. It is said to sometimes become parasitic. Ascocarps black, stipitate; disk scarcely cupped, ranging up to 4 cm. in diameter although usually smaller. Caliciaceae (p. 134) Stroma more or less thalloid, with or without algal cells, often rudimentary and inconspicuous; ascoma more or less globoid, stipitate; the apex of the ascus dissolv- ing before the spores are matured, thus allowing the hyaline unripened spores to es- cape and
RMMCK6RX–. Fig. 99.—Cucurbitaria laburni. A, Stroma with pycnidia containing minute unicellular conidia. B, One of the large smooth pycnidia. (After v. Tubeuf.) The mature perithecia have a peridiuin consisting of a loose pseudopareiichyma with a rough warty exterior and a pore set in a distinct depression (Fig. 100.) The paraphyses are long, strong threads, often branched, and between them arise the long cylindrical asci with rounded ends. The normal number of ascospores is eight in each ascus, but fewer is no exception. In addition to the forms already described, pycnidia of still another sort occur
RM2AFKKEA–. Breeder and sportsman. ITHACA GUNS T HIS illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun, it can only be appreciated after you have handledand examined the gun for yourself. It is fitted with the best Dam-ascus or Whitworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid in gold. Send for Art Cata-log describing our complete line, 17 grades, ranging in price from $17.75net to $300 lis
RMPG42N6–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 63.—JExoctscus aureus. Leaf section from the margiu of a swelling, showing normal and hypertropbied tissue. The cells of the swelling are abnormally elongated with thickened walls, and some show secondary cell-division. The bases of the asci are wedged in between the cells; one ascus is shown with conidia. (v. Tubeuf del.) Exoascus cameus Johan. occurs on leaves of Betula odorata, B. nana, and B. intermedia. Th
RMMCMTCE–. Fig. 61.—Plowrightia mcrhosa. i, portion of a plum branch, showing conidial stage of the fungus; 2, branch with ascigerous condition of the fungus ; 3, conidiophores bearing conidia ; 4, ascus containing 8 spores. Figs, i and 2 rethiced ; rest highly mag. obvate, hyaline, i-septate, basal cell much the smaller of the two, 15-20 X 8-10 i. The only practical method of dealing with this disease is to cut out all diseased knots. When the tree is badly infected, new knots frequently develop at or near the points from which knots have been cut away. In such cases the
RM2AFJ39Y–. Breeder and sportsman. ITHACA GUNS THIS Illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun, it can, only be appreciated after you have handled j and examined the gun for yourself. It is fitted with the best Dam-ascus or Wnitworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid in gold. Send for Art Cata-log describing our complete line, 17 grades, ranging in price from $17.75net to $300
RMPG3WBD–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. Plate 17. LOPADIUM PEZIZOIPEUM Koerh. u L L ^ Plant on n,oss b. Portion of thallu« and apothecia. c. Vertical section d 'f If If thallus. d. Vertical section of apothecium. .. Ascus with spore and paraphysis.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History)
RMMCTM6W–. Fig. 52.—Sphaerella fra^^ariae. i, a diseased straw- berry leaf; 2, ascus containing eight spores of the Sphaerella or ascigerous stage; 3, conidia of the Ratnularia or conidial stage. 1-igs. 2 and 3 liighly mag. irregular patches. By degrees the centre of the patch assumes an ashy-grey or almost white colour, and is bounded by a reddish border, which is often ([uitc bright in colour later in the season. The central portion then becoaies studded with very minute white tufts of the conidial form of fruit. Later in the season these minute white tufts are replaced by minute black points—the asc
RM2AFM511–. Breeder and sportsman. ITHACA GUNS HIS Illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun, it can only be appreciated after you have handledand examined the gun for yourself. It is fitted with the best Dam-ascus or Whitworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid in gold. Send for Art Cata-log describing our complete line, 17 grades, ranging in price from $17.75net to $300 list.
RMPG3W9F–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. X80. X460 X 700 ARTHONIA ASTROIDEA Aoh. a. Plant on bark. b. Portion of thallus and apothecia. c. Vertical section of thallus. d. Vertical section of apothecia. c. Ascus and paraphysei /. Spores.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). Dept. of Bo
RMMAB5R5–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Fruchtkörper mit der aus Fig. 2. Fruchtkörper nach Fig. 1—4. Elaphomyces cervinus. Fig. 1. Mycel und Wurzeln gebildeten Hülle, wenig vergr Entfernung der Wurzelhülle von aussen, nat. Grösse. Fig. 3. Durchschnitt durch einen jüngeren Fruchtkörper, schwach vergr. Fig. 4. Ascus mit nicht ganz reifen Sporen, stark vergr. (Fig. 1 und 3 nach Eees und Fisch, Fig. 2 und 4 nach der Natur.)
RM2AFKM2G–. Breeder and sportsman. ITHACA GUNS T HIS illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun, it can only be appreciated after you have handledand examined the gun for yourself. It is fitted with the best Dam-ascus or Whitworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid in gold. Send for Art Cata-log describing our complete line, 17 grades, ranging in price from $17.75net to $300 lis
RMPG3W6W–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. Plate 28. X 500 GRAPHIS BLBGANS Ach. a. Plant on bark. b. Portion of thallus and apothecia. c. Vertical section of thallus. d. Vertical section of apothecium. c. Ascus and paraphysis /. Spore.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). Dept. of Botan
RMMCK6R3–. Fio. 119.—Hiipodermella sulcigena. The apothecia form black lines on the needles. Ascus containing four spores (enlarged). Single spore with a gelatinous covering (still further enlarged). (Cop. from Rostrup.) Fir,. 120.—Hypodenndla lands. Larch- needle with apothecia on the under side. A, Paraphyse, and an ascus containing four spores. B, Isolated (enlarged) asco- spore in its gelatinous coat. (v. Tubeuf del.) (66/u X 16yw) with a gelatinous membrane. The paraphyses are simple hyaline filaments, shorter than the asci. Lophodermium. The oblong apothecia are embedded in the host-tissues under
RM2AFNXAP–. Breeder and sportsman. ITHACA GUNS THIS illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun, it can only be appreciated after you have handledr— ? .- an^ examined the gun for yourself. It is fitted with the best Dam-ascus or Whitworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid in gold. Send for Art Cata-log describing our complete line, 17 grades, ranging in price from $17.75net to $
RMPG3W8B–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. XlOO XYLOGBAPHA PARALLELA Nyl. a. Plant on wood. h. Protruding apothecia. c. Vertical section of thallus and apothecium. d. Ascus and paraphysis. t:. Spore.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). Dept. of Botany; Crombie, James Morrison, 1833-190
RMMCK5DE–. Fig. 14(3.—Ront-system of a Silver Fir overgrown and killed by the mycelium of Rhizina undulata. (After Hartig.) Pig. 147.—Ascospores of Rhizina. a, As taken from the ascus; b, 24 hours after sowing; c, 48 hours after sowing; d, the spore of c enlarged. (After Hartig.) filled up. Masses of fungoid pseudoparenchyma are frequently formed between the dead and diseased tissues. Strands of the nature of Rhizodonia emerge from the diseased roots, many of them carrying thread-like processes, at the extremity of which an oil-drop is secreted and escapes on rupture of the apex. According to Hartig, v
RM2AJD9R7–Elementary botany . Fig. 231. Fertilized egc? surroundedby the enveloping threadswhic 1 grow up around it.Figs. 229-231.—Fertilization in sphaerotheca; one of the powdery mildews. (After Harper.) an ascus, a large majority of the ascomyectes have just 8 spores in an 198 MORPHOLOGY. ascus, while some have 4. others 16, and some an indefinite number.The asci in a perithecium are more variable. In some ascomycetes thereis no perithecium. 416. The black fungi.—These are very common on dead logs, branches,. Fig. 231a.Edible Morel. Morchella esculenta. The asci, forming hymenium, cover thepitted sur
RMPFK7XP–. The cytoplasm of the plant cell. Plant cells and tissues; Protoplasm. Chapter VII 61 — The Chondriome ^r ^ o ^ „ o o o O - o o Qa numerous, densely clustered, chondrioconts. Then the cell under- goes a nuclear fusion and when that is completed, the two chondrio- somal masses fuse around the single nucleus. After nuclear fusion, the ascus enlarges and grows longer progressively to form an elongated voluminous cell. During this process, the nucleus main- tains a somewhat central position while the chondrioconts, which have been grouped about the nucleus, spread out through the entire cytopl
RMMCK5FN–. Pig. 118. -Leaf of Erica carnea with apothecia of Hypoderma ericae on the lower surface. 1, An entire and a dehiscing ascus ; a two-ceUed asco- spore. (v. Tubeuf del.) Hypodermella. Similar to Hypoderma, except that the spores are pear-shaped and unicellular; they occur four in each ascus, and are shorter than it. Hypodermella sulcigena (Link)'^ has four long, club-shaped, unicellular spores. Eostrup regards it as parasitic on Pinus montana and P. syhcstris, its mycelium being found in living green needles, and causing their death. Hyp. laricis Tubeuf.- This is a new fungus of tlie larch- ne
RM2AN4PWE–Fungi, Ascomycetes, Ustilaginales, Uredinales . i laricina Mass.; development and ejection ofbiseriate spores, x 600. Fig. 5. Sepitltaria coroftaria Mass.; nni-seriate spores; ascus opening by a lid :branched, septate, clavate paraphyses;x 600. isolated asci lying in water are suddenly exposed to the action of glycerineor alcohol, and is clearly due to alterations of tension affecting anumber of asci at about the same stage of development. After the fructifi-cation has puffed once or a few times a rest of some hours during which 38 ASCOMYCETES [CH. fresh asci reach maturity is necessary before
![. The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. THALLOPHYTA,. 1 CordycepB Taylori, a pyrenomycetous Fiirgu which attacks caterpillars; the branched antler-like stroma has developed rfrom the sclerotlum, and its lower warted portion bears the perithecia. 2 Three perithecia; enlarged. 3 a perithecium in section. * Two asci containing filamentous spores. » Vertical section of a perithecium of Xylaria Hypoxylon. 6 Ascus of same. "^ Mycelium of Eurotium. bearing a conidial hypha (to riglit, above), a commencing fruit (to left), and a ripe ascus-fr Stock Photo](https://c8.alamy.com/comp/PG1RDM/the-natural-history-of-plants-their-forms-growth-reproduction-and-distribution-botany-thallophyta-1-cordycepb-taylori-a-pyrenomycetous-fiirgu-which-attacks-caterpillars-the-branched-antler-like-stroma-has-developed-rfrom-the-sclerotlum-and-its-lower-warted-portion-bears-the-perithecia-2-three-perithecia-enlarged-3-a-perithecium-in-section-two-asci-containing-filamentous-spores-vertical-section-of-a-perithecium-of-xylaria-hypoxylon-6-ascus-of-same-quot-mycelium-of-eurotium-bearing-a-conidial-hypha-to-riglit-above-a-commencing-fruit-to-left-and-a-ripe-ascus-fr-PG1RDM.jpg ". The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. THALLOPHYTA,. 1 CordycepB Taylori, a pyrenomycetous Fiirgu which attacks caterpillars; the branched antler-like stroma has developed rfrom the sclerotlum, and its lower warted portion bears the perithecia. 2 Three perithecia; enlarged. 3 a perithecium in section. * Two asci containing filamentous spores. » Vertical section of a perithecium of Xylaria Hypoxylon. 6 Ascus of same. "^ Mycelium of Eurotium. bearing a conidial hypha (to riglit, above), a commencing fruit (to left), and a ripe ascus-fr Stock Photo")
RMPG1RDM–. The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. THALLOPHYTA,. 1 CordycepB Taylori, a pyrenomycetous Fiirgu which attacks caterpillars; the branched antler-like stroma has developed rfrom the sclerotlum, and its lower warted portion bears the perithecia. 2 Three perithecia; enlarged. 3 a perithecium in section. * Two asci containing filamentous spores. » Vertical section of a perithecium of Xylaria Hypoxylon. 6 Ascus of same. "^ Mycelium of Eurotium. bearing a conidial hypha (to riglit, above), a commencing fruit (to left), and a ripe ascus-fr
RMMCKCCG–. Fig. %z.—Dasyscypha calycina. i, larch branch diseased ; 2, fungus causing disease ; 3, ascus with spores and paraphyses. Figs. 2 and 3 mag. branches of the mountain pine {Finns pumilio, Haenke), and the balsam fir {Abies ba/samea, Miller) suffers from this disease in the United States. The fungus is a wound parasite, as first indicated by Hartig ; this statement I have corroborated by over a hundred experiments on trees of various ages, and situated in different parts of the country. Fresh ascospores, that germinated readily in water, were placed on the bark of young branches, also in crevi
RM2AXHFB9–Nature and development of plants . Fig. 152. Other common forms of the Spheriales: A, habit of Hysterio-graphium on a dead twig. B, ascocarps enlarged. C, ascus enlarged,showing character of ascospores. D, Daldinia. E, section of the same,showing that the stroma forms a concentric stratum of ascocarps, as. eachyear. F, Xylaria. G, the same with branch cut off to show the layer ofascocarps on the periphery of the stroma. In Hypoxylon, the stroma containing the ascocarps breaks throughthe bark of a large variety of trees and shrubs in the form ofspherical or cake-like masses (Fig. 149)- 89. Orde
RMPG3W9Y–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. ra XllO. X2000 X 1000 X 500 PLATYGRAPHA PEBICLEA Nyl. a Plant on bark. h. Portion of thallus and apothecia. c. Vertical section of thallus. d. Vertical Kection of apothecium. e. Ascus and paraphysis. /. Spore.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History
RMMAA477–. Edible and poisonous mushrooms of Canada . Figures 37-40. Semidiagrammatic drawings illustrating various types of basidia: 37, basidium of Agaricaceae (a spore, b sterigma, c basidium); 38, basidium of Tremellaceae with longi- tudinal septa; 39, deeply forked basidium of Dacrymycetaceae; 40, basidium of Auricularia- ceae with transverse septa. Figure 41. Semidiagrammatic drawing of: a ascus containing ascospores, b paraphysis. Figure 42. Diagram illustrating a small section of the lamella of a mushroom: a cystidium, b paraphyses, c basidium, d trama. Figure 43. Diagram of a transverse sectio
![Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig. 108. Polystigma rubriim DC; young perithe-cium; the ascogenous hyphae are not yet clearlydistinguished, many of the nuclei are in pairs, thedarkly stained remains of ihe archicap are visiblenear the periphery; x68o; after Blackman andWelsford.. Fig. 109. Polystigma rtibrutn DC ; matuthecium, x 270; after Blackman and W re pen-elsford. 1 Nienburg, p. 390, end of first paragraph. v] IIYIOt RKALKS 149 authors found some evidence that a first nuclear fusion takes place in theascogenous hypha before the differentiation of the asci. The ascus is f Stock Photo](https://c8.alamy.com/comp/2AN3PCF/fungi-ascomycetes-ustilaginales-uredinales-fig-108-polystigma-rubriim-dc-young-perithe-cium-the-ascogenous-hyphae-are-not-yet-clearlydistinguished-many-of-the-nuclei-are-in-pairs-thedarkly-stained-remains-of-ihe-archicap-are-visiblenear-the-periphery-x68o-after-blackman-andwelsford-fig-109-polystigma-rtibrutn-dc-matuthecium-x-270-after-blackman-and-w-re-pen-elsford-1-nienburg-p-390-end-of-first-paragraph-v-iiyiot-rkalks-149-authors-found-some-evidence-that-a-first-nuclear-fusion-takes-place-in-theascogenous-hypha-before-the-differentiation-of-the-asci-the-ascus-is-f-2AN3PCF.jpg "Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig. 108. Polystigma rubriim DC; young perithe-cium; the ascogenous hyphae are not yet clearlydistinguished, many of the nuclei are in pairs, thedarkly stained remains of ihe archicap are visiblenear the periphery; x68o; after Blackman andWelsford.. Fig. 109. Polystigma rtibrutn DC ; matuthecium, x 270; after Blackman and W re pen-elsford. 1 Nienburg, p. 390, end of first paragraph. v] IIYIOt RKALKS 149 authors found some evidence that a first nuclear fusion takes place in theascogenous hypha before the differentiation of the asci. The ascus is f Stock Photo")
RM2AN3PCF–Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig. 108. Polystigma rubriim DC; young perithe-cium; the ascogenous hyphae are not yet clearlydistinguished, many of the nuclei are in pairs, thedarkly stained remains of ihe archicap are visiblenear the periphery; x68o; after Blackman andWelsford.. Fig. 109. Polystigma rtibrutn DC ; matuthecium, x 270; after Blackman and W re pen-elsford. 1 Nienburg, p. 390, end of first paragraph. v] IIYIOt RKALKS 149 authors found some evidence that a first nuclear fusion takes place in theascogenous hypha before the differentiation of the asci. The ascus is f
RMPG3W84–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. Plate 25. X (iOO c ENCEPHALOGBAPHA CEREBRINA Koerb. a Plant on rock. h. Portion of tliallus and apothecia. c. Vertical section of thallui.. 'I- Vertical section of apothccium. r. Ascus and paraphysis. /. Spores. Ml. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural Hi
RMMCK6CP–. Fkj. 90.—Cucurhitaria labv.rni. A, Stroma witli pycnidia containing minute unicellular conidia. B, One of the large smooth pycnidia. (After v. Tubeuf.) The mature perithecia have a peridium consisting of a loose pseudoparenchyma with a rough warty exterior and a pore set in a distinct depression (Fig. 100.) The paraphyses are long, strong threads, often branched, and between them arise the long cylindrical asci with rounded ends. The normal number of ascospores is eight in each ascus, but fewer is no exception. In addition to the forms already described, pycnidia of still another sort occur
RM2AN4N79–Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig. 10. Humaria rutilans (Fr.)San.: an ascus (n) the terminal cellconnected with which has continuedits growth and given rise to anotherascus (/>) from tin- terminal cell of whicha third ascus (c) has arisen, x 1250.. Fig. 11. Humaria rutilans (Fr.) Sacc.; a. asco-genous hypha showing sixteen chromosomes ineach nucleus, x 1950; 6. fusion nucleus of ascuspassingout of synapsis, x i^oojc. fusion nucleusof ascus showing sixteen gemini, X 19=0. observations have since been widely confirmed by a number of investi-gators, and synapsis, the second c
RMPG3W4C–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. X 600. X 600 DBRMATOCARPON LAGHNBUM A. L. Sm. a. Whole plant, h. Portion of thallus and perithecia, c. Vertical section of thallus. d. Vertical section of perithecia. e. Ascus and paraphysis. /. Spores.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). Dept
RMMCMPA0–. FiG. 14,—Typical forms of asci. i, ascus of Peziza cerea, containing eight spores, also two paraphyses ; 2, ascus of SphaerosomaLeveillei; 3, Gcog/ossniii. Feckianiini, the long needle-shaped spores are in a bundle, paraphyses curved at the tip ; 4, Kyparoblus sexdccemsporjis, sixteen spores in an ascus ; 5, Tuber excavatuni, ascus with one large spore ; 6, Zignoella corticola. All figs, highly mag. cium, is elongated or star-shaped, and instead of a minute mouth or pore, splits along its whole length to admit of the escape of the pores. In the Basidiomycetes the pores are not produced in as
RM2AFKD3X–. Breeder and sportsman. ITHACA GUNS HIS illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun. it can only be appreciated after you have handledaiul examined the gun for yourself. It is fitted with the best Dam-ascus or Whitworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid in gold. Send for Art Cata-log describing our complete line. 17 grades, ranging in price from $17.75net to $300 list
RMPG3WC9–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. Plate 13. XGOO BUELLIA MYRIOCABPA Mudd a. Plant on wood. h. Portion of thallus and apothooia. c. Vertical section of thallus. d. Vertical section of apothecium. e. Ascus and paraphysis /. Spores.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). Dept. of Bo
RMMCKWXM–. Fig. 3. Endospores. Figs. 4, 5. Chlamydospores breaking up into individual spores. Fig. 6. Chlamydospores, unbroken. Fig. 7. Ascospores. Fig. 8. Ascus. spore case is formed on terminal branches. It has a somewhat swol- len base and a long tapering cell (Fig. 3). The endospores are form- ed in the apex of this terminal cell and are pushed out of the rup- tured end by the growth of the unfragmented protoplasm of the base. They are hyalin, thin-walled, oblong to linear 10-25ux4-5u. The second kind of spores formed are the chlamydospores (Figs. 4-6). These are thick-walled dark brown bodies, bor
RM2AFJHKC–. Breeder and sportsman. ITHACA GUNS THIS illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun, it can only be appreciated after you have handled ^= an.l examined the gun for yourself. It is fitted with the best Dam-ascus or Whitworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid in gold. Send for Art Cata-log describing our complete line, 17 grades, ranging in price from $17.75net to $300
RMPG21Y4–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. Plate 51. ill! MIGROTHELIA MICULA Flot. a. Whole plant, b. Portion of thallus and peritheoia. c. Vertical section of thaUus. d. Vertical section of peritheoia. e. Ascus and paraphyses. /. .Spores. Sf^i^fMvb^Vx. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History
RMMCKCE7–. Fig. 71. — Lophodermium pinastri. i, fungus on pine leaves; 2, ascigerous form of fungus; 3, conidial form ; 4, ascus with spores; 5, a single spore. Figs. 2-5 mag. primary leaves showing brown blotches, while other portions become purple-red. Even at this early stage the character- istic mycelium may be found in the brown blotches. During the first year after infection a large number of minute black spots, representing a conidial form of the fungus, are pro- duced, the contents of which do not appear to be capable of germination. As a rule, the ascigerous form of the fungus does not appear
RM2AFNEKD–. Plant anatomy from the standpoint of the development and functions of the tissues, and handbook of micro-technic. FlG. 5.—Free cell formation of spores in the ascus of Erysiphe communis. A, ascuswith single nucleus; C, cytoplasm; N, nucleus; NL, nucleolus; B, successive stages innuclear division within the ascus; at X, early anaphase, nuclear membrane, NM, stillpersisting; R, kinoplasmic radiations from the poles; at Y, telophase, new nuclear membranenot yet formed; Z, a later stage where the nuclear membranes demark the daughter nuclei;C, A, B and C, are successively later stages than Z in
RMPG4G9T–. The fungi which cause plant disease . Plant diseases; Fungi. 212 THE FUNGI WHICH CAUSE PLANT DISEASE usually knot-like head; perithecia closely scattered, sunken in the stroma with only the ostiole protruding, flask-shaped, the walls scarcely distinguishable from the stroma; asci cylindric, il^2«* e. Fig. 152.—C. purpurea. D, Sphacelia stage; E, germinated sclerotia; G, sec- tion of stroma; H, section of a perithecium; J, ascus with spores. After Tulasne. 8-spored; spores hyaline, continuous. Some twelve or fifteen species are recorded all affecting the ovaries of the Gramineae. C. purpurea
RMMCKCDJ–. Fig. T^.âKhytisma accrinutn. 1, sycamoie leaf with blotches caused'by fungus ; 2, section through a blotch bearing conidia ; 3, ascus with spores, also two para- physes ; 4, an ascosporc. Figs. 2-4 mag. and indirectly. Several large patches are frequently present on a leaf, and as a rule, when the disease is present, nearly every leaf is attacked, hence a considerable area of leaf surface is prevented from doing its work. In addition diseased leaves fall early, and as the disease, unless checked, appears year after year, the tree bet'omes enfeebled owing to lack of food, and badly matured wo
RM2AFMMHK–. Breeder and sportsman. ITHACA GUNS HIS Illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun, it can only be appreciated after you have handledan«1 examined the gun for yourself. It is fitted with the best Dam-ascus or Whltworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid In gold. Send for Art Cata-log describing our complete line, 17 grades, ranging in price from $17.75net to $300 list
RMPG4BJD–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 116.âH7/poderma strobicota on Pinus Strobus. Ascus containing eight ascospores â with gelatinous coats; paraphyses with clavate ends. (After v. Tubeuf.) Fig. 117.âHypoderma strobicoia. Isolated ascospores: with and without a gelatinous coat, and one- or two-celled. (After v. Tubeuf.) some species, but have a delicate stalk in others. The spores, eight in each ascus, are never long and thread-like, but always mu
![. Fig. ]2i3.âLophodermium nervisequium on Silver Fir. Portion of a ripe apothe- cium. a a, Filamentous paraphyses ; rod-like cells (conidia?), k, ahjointed from the apex of the paraphyses; the asci contain eight spores about half as long as the ascus itself, four occupying the upper half, four the lower ; c, a rudimentary ascns ; some mature spores possess a gelatinous coat, others do not ; sfiores escape by an apical opening, e, or by rupture of the ascus./; two gei-minating spores are also shown, one with a gelatinous coat, the other without. (After R. Hartig.) time hanging on the twigs. The Stock Photo](https://c8.alamy.com/comp/MCK6PR/fig-2i3lophodermium-nervisequium-on-silver-fir-portion-of-a-ripe-apothe-cium-a-a-filamentous-paraphyses-rod-like-cells-conidia-k-ahjointed-from-the-apex-of-the-paraphyses-the-asci-contain-eight-spores-about-half-as-long-as-the-ascus-itself-four-occupying-the-upper-half-four-the-lower-c-a-rudimentary-ascns-some-mature-spores-possess-a-gelatinous-coat-others-do-not-sfiores-escape-by-an-apical-opening-e-or-by-rupture-of-the-ascus-two-gei-minating-spores-are-also-shown-one-with-a-gelatinous-coat-the-other-without-after-r-hartig-time-hanging-on-the-twigs-the-MCK6PR.jpg ". Fig. ]2i3.âLophodermium nervisequium on Silver Fir. Portion of a ripe apothe- cium. a a, Filamentous paraphyses ; rod-like cells (conidia?), k, ahjointed from the apex of the paraphyses; the asci contain eight spores about half as long as the ascus itself, four occupying the upper half, four the lower ; c, a rudimentary ascns ; some mature spores possess a gelatinous coat, others do not ; sfiores escape by an apical opening, e, or by rupture of the ascus./; two gei-minating spores are also shown, one with a gelatinous coat, the other without. (After R. Hartig.) time hanging on the twigs. The Stock Photo")
RMMCK6PR–. Fig. ]2i3.âLophodermium nervisequium on Silver Fir. Portion of a ripe apothe- cium. a a, Filamentous paraphyses ; rod-like cells (conidia?), k, ahjointed from the apex of the paraphyses; the asci contain eight spores about half as long as the ascus itself, four occupying the upper half, four the lower ; c, a rudimentary ascns ; some mature spores possess a gelatinous coat, others do not ; sfiores escape by an apical opening, e, or by rupture of the ascus./; two gei-minating spores are also shown, one with a gelatinous coat, the other without. (After R. Hartig.) time hanging on the twigs. The
RM2AJD5F9–Elementary botany . Fig. 247.Hydnum rcpandum, spines hanging down from under side of cap. 212 MORPHOLOGY.. Fig. 248.Clavaria botrytes. CHAPTER XXII. CLASSIFICATION OF THE FUNGI. 429. Classification of the fungi.—Those who believe that the fungi repre-sent a natural group of plants arrange them in three large series related toeach other somewhat as follows •. The Basidium Type or Series.The number of gonidia on a ba-sidium is limited and definite,and the basidium is a characteris-tic structure; examples: uredineae(rusts), mushrooms, etc. The Ascus Type or Series. Thenumber of spores in an ascus
RMPG3W67–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. XodO GEAPHINA SOPHISTICA Muell. Arg. 1.1.1. a. Plant on balk. h. Portion of thallus and apothecia. c. Vevtieal section ol ol 0 of thallus. li. A'ertical section of apothecium. c. Ascus and paraphysis. /. Spore.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural Histor
RMMCTJDK–. Fig. 225. A—D Delastria rosea Tul. A Liingsdurchschnitt durch deu Fruclitkörper (4)1); B eine kleinere ascus- führeude Partie mit der Fruchtkörperoberfläche, vergr.; C Ascus , stärker vergr.; D Spore, sehr stark vergr. — E—H Qenäbea fragilis Tul. E Fruchtkörper, angeschnitten (ca. 5|1); F Stück eines Durchschnittes durch den Fruchtkörper mit den Asci, starker vergr.; G Spore, sehr stark vergr.; H optischer Durchschnitt durch die Sporen- membran, sehr stark vergr. (.1, E, F nach Tulasne, die übrigen Originale.)
RM2AFKY60–. Breeder and sportsman. ITHACA GUNS THIS Illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun. It can only be appreciated after you have handled- and examined the gun for yourself. It is fitted with the best Dam-ascus or Wbitworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid in gold. Send for Art Cata-log describing our complete line, 17 grades, ranging in price from $17.75net to $300 li
RMPG21RN–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. X loo â ^-^'â -o^'^a^-^^' X (100. X 600 MYCOPORELLUM OBSCURUM A. L. Sm. (/. Whole plant, b. Portion of thallus and perithecia. c. Vertical section of thallu.^. d. Vertical section of perithecia. e. Ascus and paraphyse.s. /. Spores.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British M
RMMCX0FM–. Fig. 37.—Sphaerotheca mors-uvae. 1, showing mildew on leaf and fruit ; 2, winter stage on a shoot ; 3, perithecium or winter fruit; 4, ascus con- taining spores ; 5, a chain of conidia or summer fruit ; 6, conidia showing fibrosin bodies in their interior; 7, a branch that has been injured by aphides (green fly) at the tip. The recurved spines and brown colour are characteristic. Figs, i, 2, and 7, nat. size ; remainder highly mag. when an autumnal expansion of buds follows early pruning. As the season advances the white mildew, which at first resembles in general appearance the well-known h
RM2AJD4WB–Elementary botany . and its many relatives parasitic on insects. 2l6 MORPHOLOGY. In the autumn and winter dead flies are often found stuck to window-panes,with a white ring of the conidia around each fly. II. Class Ascomycetes. (The ascus series.) 1. SUBCLASS HEMIASCOMYCETES.441. Order Hemiascales (Hemiascineae).—Fungi with a well developed, septate mycelium, butwith a sporangium-likeascus, i.e., a large andindefinite number ofspores in the ascus. Ex-amples : Protomycesmacrosporus in stems ofUmbelliferae, or P. poly-sporus in Ambrosia tri-fida. These two are bysome placed in the Usti-lagineae.
RMPG3WF7–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. X 500. X 500 ^^3 W^ X 1200 GYALECTA GUPULAEIS Schfer. a. Plant on rock. b. Portion of thallus and apothecia. c. Vertical section of thallus. d. Vertical section of apotheciuna. e. Ascus and paraphyses. /. Spores.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural Hist
![. Fio. 91.—Herpotrichia nif/ra. Ascus with germinating spores, (v. Tubeuf del.) I have frequently observed the fungus on Junijjerus com- munis, especially in Bavarian forest-land, and on Jiiniperus nana in the Alps. Professor Peter found it on the latter host in Sweden. The spherical dark-coloured perithecia are covered with prostrate hairs, and contain asci with eight four-celled spores. The spores germinate directly to hyphae. The mycelium closely ^ R. Hartig, "Herpotrichia nigra." A/le//. ForsL-u. Jafjd-Zeitung, 188S. V. Tubeuf, " Mittheilung lib. einige Feinde d. Waldes.&quo Stock Photo](https://c8.alamy.com/comp/MCK6T8/fio-91herpotrichia-nifra-ascus-with-germinating-spores-v-tubeuf-del-i-have-frequently-observed-the-fungus-on-junijjerus-com-munis-especially-in-bavarian-forest-land-and-on-jiiniperus-nana-in-the-alps-professor-peter-found-it-on-the-latter-host-in-sweden-the-spherical-dark-coloured-perithecia-are-covered-with-prostrate-hairs-and-contain-asci-with-eight-four-celled-spores-the-spores-germinate-directly-to-hyphae-the-mycelium-closely-r-hartig-quotherpotrichia-nigraquot-ale-forsl-u-jafjd-zeitung-188s-v-tubeuf-quot-mittheilung-lib-einige-feinde-d-waldesquo-MCK6T8.jpg ". Fio. 91.—Herpotrichia nif/ra. Ascus with germinating spores, (v. Tubeuf del.) I have frequently observed the fungus on Junijjerus com- munis, especially in Bavarian forest-land, and on Jiiniperus nana in the Alps. Professor Peter found it on the latter host in Sweden. The spherical dark-coloured perithecia are covered with prostrate hairs, and contain asci with eight four-celled spores. The spores germinate directly to hyphae. The mycelium closely ^ R. Hartig, "Herpotrichia nigra." A/le//. ForsL-u. Jafjd-Zeitung, 188S. V. Tubeuf, " Mittheilung lib. einige Feinde d. Waldes.&quo Stock Photo")
RMMCK6T8–. Fio. 91.—Herpotrichia nif/ra. Ascus with germinating spores, (v. Tubeuf del.) I have frequently observed the fungus on Junijjerus com- munis, especially in Bavarian forest-land, and on Jiiniperus nana in the Alps. Professor Peter found it on the latter host in Sweden. The spherical dark-coloured perithecia are covered with prostrate hairs, and contain asci with eight four-celled spores. The spores germinate directly to hyphae. The mycelium closely ^ R. Hartig, "Herpotrichia nigra." A/le//. ForsL-u. Jafjd-Zeitung, 188S. V. Tubeuf, " Mittheilung lib. einige Feinde d. Waldes.&quo
![Fungi, Ascomycetes, Ustilaginales, Uredinales . g. 68. Humaria granulata Quel.; a. fusion of nuclei in oogonium, X3200; ^.oogoniumgiving rise to ascogenous hyphae, x isjo; after Blackman ami Fraser. Vegetative cells grow up and invest the archicarp, forming a closepseudoparenchymatous sheath in which the ascogenous hyphae ramify.They give rise at last to asci in the usual way. Four chromosomes have been recorded in the ascogenous hyphae,eight in the first division in the ascus and four in the two subsequent IV] IKXIZAI.KS 11 • mitoses. This implies that the gametophytic number is four, and tha Stock Photo](https://c8.alamy.com/comp/2AN4560/fungi-ascomycetes-ustilaginales-uredinales-g-68-humaria-granulata-quel-a-fusion-of-nuclei-in-oogonium-x3200-oogoniumgiving-rise-to-ascogenous-hyphae-x-isjo-after-blackman-ami-fraser-vegetative-cells-grow-up-and-invest-the-archicarp-forming-a-closepseudoparenchymatous-sheath-in-which-the-ascogenous-hyphae-ramifythey-give-rise-at-last-to-asci-in-the-usual-way-four-chromosomes-have-been-recorded-in-the-ascogenous-hyphaeeight-in-the-first-division-in-the-ascus-and-four-in-the-two-subsequent-iv-ikxizaiks-11-mitoses-this-implies-that-the-gametophytic-number-is-four-and-tha-2AN4560.jpg "Fungi, Ascomycetes, Ustilaginales, Uredinales . g. 68. Humaria granulata Quel.; a. fusion of nuclei in oogonium, X3200; ^.oogoniumgiving rise to ascogenous hyphae, x isjo; after Blackman ami Fraser. Vegetative cells grow up and invest the archicarp, forming a closepseudoparenchymatous sheath in which the ascogenous hyphae ramify.They give rise at last to asci in the usual way. Four chromosomes have been recorded in the ascogenous hyphae,eight in the first division in the ascus and four in the two subsequent IV] IKXIZAI.KS 11 • mitoses. This implies that the gametophytic number is four, and tha Stock Photo")
RM2AN4560–Fungi, Ascomycetes, Ustilaginales, Uredinales . g. 68. Humaria granulata Quel.; a. fusion of nuclei in oogonium, X3200; ^.oogoniumgiving rise to ascogenous hyphae, x isjo; after Blackman ami Fraser. Vegetative cells grow up and invest the archicarp, forming a closepseudoparenchymatous sheath in which the ascogenous hyphae ramify.They give rise at last to asci in the usual way. Four chromosomes have been recorded in the ascogenous hyphae,eight in the first division in the ascus and four in the two subsequent IV] IKXIZAI.KS 11 • mitoses. This implies that the gametophytic number is four, and tha
RMPG3WBF–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. Plate 16. XfiOO BOMBYLIOSPORA PACHYCARPA Massal. a a (> a. Plant on moss. b. Portion of thallus and apothecia. c. Vertical section 0 0 0 of thallus. d. Vertical section of apothecium. c, Ascus with spore and paraphyses.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Na
RMMCTWBB–. FlC. 63. — I, Sphacrulina taxi, on yew lc;if, slightly mag. ; 2, section of pcrithecium. slightly mag. ; 3, ascus containing spores, highly mag. ; 4, free ascospores, highly mag. If the disease attacks a tree for two or three years in succession it is usually killed outright. Fortunately this is not a common disease, or at all events it is not very frequently recorded. I have seen it at work in Cornwall, and also in Yorkshire, where a number of fine yew-trees growing in a churchyard were being killed. Mr. F. Moore of Glasnevin informed me that he had noticed the disease in three counties in
RM2AJG1JX–Comprehensive catalogue of Queensland plants, both indigenous and naturalised To which are added, where known, the aboriginal and other vernacular names; with numerous illustrations, and copious notes on the properties, features, &c., of the plants . J to OTidiA, jatv.il-^tCvJTY. p*k. $46. Tribliadella rufula, Spreng. 848. Epichloe cinerea, S^r/e. gf Br. .847. Hysterographium hiascens, Rehm. 849. Hypocrea discoidea, 5<?r£. c/ Br. 850. Nectria coccinea, Fries. Cluster of perithecia nat. size, sect, of perithecium enl., and ascus enl. 851. Hypomyces AURANTIUS, Till. (a) Hypomyces on Panus, (
![. Diseases of truck crops and their control . Vegetables. Fig. 65. Tomato Diseases. a. Various forms of vegetative cells of the yeast rot fungus, 6. ascus, j. ascosporet of the yeast rot fungus (a. to c. after Schneider), d. Phoma rot on foliage, e. Phoma rot on fruit,/, pycnidium of the Phoma rot organism, g. cross-section of a pycnidium of the Phoma funpii?;. h. T^^'^elium, *. pycnospores of same (d. to »". after Jamieson).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illu Stock Photo](https://c8.alamy.com/comp/PG4CD4/diseases-of-truck-crops-and-their-control-vegetables-fig-65-tomato-diseases-a-various-forms-of-vegetative-cells-of-the-yeast-rot-fungus-6-ascus-j-ascosporet-of-the-yeast-rot-fungus-a-to-c-after-schneider-d-phoma-rot-on-foliage-e-phoma-rot-on-fruit-pycnidium-of-the-phoma-rot-organism-g-cross-section-of-a-pycnidium-of-the-phoma-funpii-h-telium-pycnospores-of-same-d-to-quot-after-jamieson-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illu-PG4CD4.jpg ". Diseases of truck crops and their control . Vegetables. Fig. 65. Tomato Diseases. a. Various forms of vegetative cells of the yeast rot fungus, 6. ascus, j. ascosporet of the yeast rot fungus (a. to c. after Schneider), d. Phoma rot on foliage, e. Phoma rot on fruit,/, pycnidium of the Phoma rot organism, g. cross-section of a pycnidium of the Phoma funpii?;. h. T^^'^elium, *. pycnospores of same (d. to »". after Jamieson).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illu Stock Photo")
RMPG4CD4–. Diseases of truck crops and their control . Vegetables. Fig. 65. Tomato Diseases. a. Various forms of vegetative cells of the yeast rot fungus, 6. ascus, j. ascosporet of the yeast rot fungus (a. to c. after Schneider), d. Phoma rot on foliage, e. Phoma rot on fruit,/, pycnidium of the Phoma rot organism, g. cross-section of a pycnidium of the Phoma funpii?;. h. T^^'^elium, *. pycnospores of same (d. to »". after Jamieson).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illu
RMMCTKJW–. Fig. 25. Melirteilige Sporen von Sphaeria Scirpi (350/1). (Nach De Bary.) Der Entstehung nach sind besonders 8 Sporenunterscheidungen wichtig. Sporen, welche einzeln an den Enden von Mycelfäden gebildet werden (acrogene Sporen, Conidien, Stylosporen) und solche, welche in dem Inneren einer Zelle (Sporan- gium, Ascus) gebildet werden (endogene Sporen, As Oosporen). Schwärmsporen werden immer endogen gebildet. Eine 3. Sporenform wird als Chlamydosporen be- zeichnet; hier werden die Sporen in der Continuität des Fadens gebildet. In physiologischer Beziehung unterscheidet man zwischen solchen Sp
RM2AFNM3R–. Breeder and sportsman. ITHACA GUNS THIS illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun, it can only be appreciated after you have handled -—- ami examined the gun for yourself. It is fitted with the best Dam-ascus or Whitworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid in gold. Send for Art Cata-log describing our complete line, 17 grades, ranging in price from $17.75net to $300
RMPFA8HD–. Development of cytochemical methods for the study of ascospore wall biogenesis and maturation. Ascomycetes; Ascospores; Fungi. 101 7 . 1 -â. Figure 5.3. WGA labeling on P. niqrella. A) lower region of ascus with ascospore; B) ascus apex; C) buffer negative control. i. paraphysis walls but did label vegetative cells in the excipular layers below the hypothecium (fig. 5.4A & C). Paraphyses were not labeled with WGA either. In both species the WGA labeling was increased with what should have been the sugar negative control (fig. 5-5). EY Labs provided N-acetylglucosamine for this purpose. N
RMMCTN8B–. Fig. b^.—Claviceps purpurea, i, ergot on rye-grass; 2, ergot on rye; 3, section of portion of conidial fruit ; 4, sclerotium or ergot bearing the stalked, ascigerous form of fruit; 5, head of ascigerous fruit showing warted surface, due to projecting mouths of perithecia; the section shoNss perithecia sunk in the fleshy stroma ; 6, ascus ; 7, free needle-shaped spore. Figs, r, 2 and 4 nat. size ; remainder variously mag. cereals, especially rye, also in the inflorescence of many kinds of grasses. Infection takes place when the plants are in bloom, the mycelium developing in the ovary, replac
RM2AJE457–Elementary botany . yces ceriviseae. a, grown in a weak nutrientsmall colony; b, single ,. cell budding; c, single substance on a thin layercell forming an ascus f plaster Paris slab),with four spores; a, r y> spores free from the several spores are formedascus. (After Rees.) . , . .. m many of the yeast cells. After a period of rest these spores, will sprout and produce the yeast plantagain. Because of this peculiar spore formation some place the yeastamong the sac fungi. (See classification of the fungi.) 238. Organized ferments and unorganized ferments.—An organismlike the yeast plant wh
RMPG4BC3–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Pig. 146.—Root-system of a Silver Fir overgrown and killed by tbe mycelium of BJiizina undulata. (After Hartig.) Fig. 147.—Ascospores of Rhisina. o, As taken from the ascus; b, 24 hours aft«r sowing: c, 48 hours after sowing; d, the spore of c enlarged. (After Hartig.) filled up. Masses of fungoid pseudoparenchyma are frequently formed between the dead and diseased tissues. Strands of the nature of Rhizoctonia emerg
RMME7TEA–. Die mikroorganismen. Mit besonderer berücksichtigung der ätiologie der infektionskrankheiten . Fig. 15. Claviceps purpurea. A. Keimendes Sklerotium (c) mit Fruchtträgern (el). B. Oberer Teil eines Fruchtträgers im Längsschnitt; cp eingesenkte Perithecien. Stärker vergrössert. C. Durchschnitt durch ein Perithecium. sh äussere Gewehsschicht; hy Hyphengeflecht; cp Mundung des Peritheciums. D. Ascus, zerrissen und die fadenförmigen Sporen sp entlassend. E. Roggenähre mit einem Mutterkorn c; s Reste der Sphacelia. Dahin gehören ferner: Cordyceps-Isaria; Pilze, deren Konidien- träger (Isaria) auf
RM2AFKYBP–. Breeder and sportsman. ITHACA GUNS THIS Illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun. It can only be appreciated after you have handled- and examined the gun for yourself. It is fitted with the best Dam-ascus or Wbitworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid in gold. Send for Art Cata-log describing our complete line, 17 grades, ranging in price from $17.75net to $300 li
RMPG44DG–. The fungal diseases of the common larch . Larches. D. Fig. 18.—Dasyscypha calycina, reproductive organs: a, asci and paraplyses (x 430); a, ascus; p, paraphysis; b, spermogonia (x 430); c, spermogonia, showing escape of spermatia (x 430); D, spermatia (x 1,000). radiating towards the centre. These fine hyphae abstract from their aisices numerous spermatia, small slightly elon- gated cells (about I'S X 1 f^), which remain for a consider-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of t
![. Fio. ll'i. — Hiti>'nlir,io. fti-olj'icoUi. ou Piitim Stiobu*. Ascus cuntaining eight ascospores with gelatinous coats ; paraphyses with clavate ends. (After v. Tubcuf.) Fig. 117.—//,w/.<.i,-i.i;,;,i„. isolated :i8i.'o8i>ores : with and without a gelatinous coat, and one- or two-celled. (After v. Tubelf.) some species, but have a delicate stalk in others. The spores, eight in each a.scus, are never long and tinead-like, but always much shorter than the asci, ami two-celled when inalure. The ]iara]ihvNes Iiuve button-shaped or hooked ends. Hypoderma strobicola - (iJostr.). Needle-bl Stock Photo](https://c8.alamy.com/comp/MCK5G0/fio-lli-hitigtnlirio-fti-oljicoui-ou-piitim-stiobu-ascus-cuntaining-eight-ascospores-with-gelatinous-coats-paraphyses-with-clavate-ends-after-v-tubcuf-fig-117wlti-iii-isolated-i8io8igtores-with-and-without-a-gelatinous-coat-and-one-or-two-celled-after-v-tubelf-some-species-but-have-a-delicate-stalk-in-others-the-spores-eight-in-each-ascus-are-never-long-and-tinead-like-but-always-much-shorter-than-the-asci-ami-two-celled-when-inalure-the-iara-ihvnes-iiuve-button-shaped-or-hooked-ends-hypoderma-strobicola-ijostr-needle-bl-MCK5G0.jpg ". Fio. ll'i. — Hiti>'nlir,io. fti-olj'icoUi. ou Piitim Stiobu*. Ascus cuntaining eight ascospores with gelatinous coats ; paraphyses with clavate ends. (After v. Tubcuf.) Fig. 117.—//,w/.<.i,-i.i;,;,i„. isolated :i8i.'o8i>ores : with and without a gelatinous coat, and one- or two-celled. (After v. Tubelf.) some species, but have a delicate stalk in others. The spores, eight in each a.scus, are never long and tinead-like, but always much shorter than the asci, ami two-celled when inalure. The ]iara]ihvNes Iiuve button-shaped or hooked ends. Hypoderma strobicola - (iJostr.). Needle-bl Stock Photo")
RMMCK5G0–. Fio. ll'i. — Hiti>'nlir,io. fti-olj'icoUi. ou Piitim Stiobu*. Ascus cuntaining eight ascospores with gelatinous coats ; paraphyses with clavate ends. (After v. Tubcuf.) Fig. 117.—//,w/.<.i,-i.i;,;,i„. isolated :i8i.'o8i>ores : with and without a gelatinous coat, and one- or two-celled. (After v. Tubelf.) some species, but have a delicate stalk in others. The spores, eight in each a.scus, are never long and tinead-like, but always much shorter than the asci, ami two-celled when inalure. The ]iara]ihvNes Iiuve button-shaped or hooked ends. Hypoderma strobicola - (iJostr.). Needle-bl
RM2AN3YNA–Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig. 90. a. Helvetia crispa (Scop.) Fr.; />? and c. Morchella vulgaris Pers.; after Boudier. nuclear divisions, and finds two chromosomes in the vegetative and four inthe fertile hyphae. Four again appear in the first and second (meiotic)divisions in the ascus, after the second fusion has taken place, and two arerecorded in the telophase of the third division, and in the mitosis in thespore. The ripe spore normally contains eight nuclei. In both species, after an ascus has arisen from the penultimate cell ofa hvpha, the terminal cell may grow
RMPG2211–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. ^^'5^^Sg^ X 100 X 120(.) . X coo GONGYLIA VIRIDIS A. L. Sm. a Whole plant, b. Portion of fchallus and perithecia. c. Thalliue gonidia. d. Vertical section of peritbecium. e. Ascus and paraphyaes. /. Spore.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History).
RMMCK6A9–. Fig. i26.—Lophodermium nervisequium on Silver Fir. Portion of a ripe apothe- ciuin. a a, Filamentous paraphyses ; rod-like cells (conidia?), k, abjointed from the apex of the paraphyses ; the asci contain eight spores about half as long as the ascus itself, four occupying the upper half, four the lower ; c, a rudimentary ascus; some mature spores possess a gelatinous coat, others do not; spores escape by an apical opening, c, or by rupture of the ascus,/; two germinating spores are also shown, one with a gelatinous coat, the other without. (After R. Hartig.) time hanging on the twigs. The di
RM2AKTTX5–Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature . l£. Fig. 6S. Spheeria herburum. a. Perithecium. b. Section of ditto, magnified slightly.c. Ascus, with unisetiate spores, d. Ascus, with biseriatespores and paraphyses x 320. be made of this little black bottle (fig. 6S, b), orthe top sliced off with a sharp knife, the interior willbe found occupied by a minute drop of jelly—this isthe nucleus. Dig it out with a needle, or a sharp-pointed penknife, and place it in a drop of water onyour glass-slide, cover it with thin glass, then p
![. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. Plate 43. X 600 X ]:-i5 X fioo POLYBLASTIA THELEODES Th. Fr. a Wl.ole plant, b. Portion of thallus and perithecia. c. Vertical section of thallus d. Vertical section of peritfcLOcium. e. Ascus and paraphysis. /. Spore.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natura Stock Photo](https://c8.alamy.com/comp/PG3W2T/a-monograph-of-lichens-found-in-britain-being-a-descriptive-catalogue-of-the-species-in-the-herbarium-of-the-british-museum-lichens-plate-43-x-600-x-i5-x-fioo-polyblastia-theleodes-th-fr-a-wlole-plant-b-portion-of-thallus-and-perithecia-c-vertical-section-of-thallus-d-vertical-section-of-peritfclocium-e-ascus-and-paraphysis-spore-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-british-museum-natura-PG3W2T.jpg ". A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. Plate 43. X 600 X ]:-i5 X fioo POLYBLASTIA THELEODES Th. Fr. a Wl.ole plant, b. Portion of thallus and perithecia. c. Vertical section of thallus d. Vertical section of peritfcLOcium. e. Ascus and paraphysis. /. Spore.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natura Stock Photo")
RMPG3W2T–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. Plate 43. X 600 X ]:-i5 X fioo POLYBLASTIA THELEODES Th. Fr. a Wl.ole plant, b. Portion of thallus and perithecia. c. Vertical section of thallus d. Vertical section of peritfcLOcium. e. Ascus and paraphysis. /. Spore.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natura
![. .,. ..M^i^'' Fig. 74.—1.^/"':'«« Injlata, nat.size;2, sections of fungus showing rhizoids. nat. size; 3, ascus containing eight spores, also three paraphyses. highly mag. : 4, two free spores showing the thickened ends, highly mag. 3-10 cm. across; asci cylindrical, spores fusiform, 32-36 X 9-10 i paraphyses numerous, tips brown. Professor Hartig has shown that this fungus is parasitic on the roots of young trees, more especially conifers, as Abies peciinata, Tsiiga mertcnsiana, Fseudofsuga doughisii, Picea sikkacnsis, Finns strobus, and Larix europaea. It also attacks the roots of Ca Stock Photo](https://c8.alamy.com/comp/MCKCDK/mi-fig-741quot-injlata-natsize2-sections-of-fungus-showing-rhizoids-nat-size-3-ascus-containing-eight-spores-also-three-paraphyses-highly-mag-4-two-free-spores-showing-the-thickened-ends-highly-mag-3-10-cm-across-asci-cylindrical-spores-fusiform-32-36-x-9-10-i-paraphyses-numerous-tips-brown-professor-hartig-has-shown-that-this-fungus-is-parasitic-on-the-roots-of-young-trees-more-especially-conifers-as-abies-peciinata-tsiiga-mertcnsiana-fseudofsuga-doughisii-picea-sikkacnsis-finns-strobus-and-larix-europaea-it-also-attacks-the-roots-of-ca-MCKCDK.jpg ". .,. ..M^i^'' Fig. 74.—1.^/"':'«« Injlata, nat.size;2, sections of fungus showing rhizoids. nat. size; 3, ascus containing eight spores, also three paraphyses. highly mag. : 4, two free spores showing the thickened ends, highly mag. 3-10 cm. across; asci cylindrical, spores fusiform, 32-36 X 9-10 i paraphyses numerous, tips brown. Professor Hartig has shown that this fungus is parasitic on the roots of young trees, more especially conifers, as Abies peciinata, Tsiiga mertcnsiana, Fseudofsuga doughisii, Picea sikkacnsis, Finns strobus, and Larix europaea. It also attacks the roots of Ca Stock Photo")
RMMCKCDK–. .,. ..M^i^'' Fig. 74.—1.^/"':'«« Injlata, nat.size;2, sections of fungus showing rhizoids. nat. size; 3, ascus containing eight spores, also three paraphyses. highly mag. : 4, two free spores showing the thickened ends, highly mag. 3-10 cm. across; asci cylindrical, spores fusiform, 32-36 X 9-10 i paraphyses numerous, tips brown. Professor Hartig has shown that this fungus is parasitic on the roots of young trees, more especially conifers, as Abies peciinata, Tsiiga mertcnsiana, Fseudofsuga doughisii, Picea sikkacnsis, Finns strobus, and Larix europaea. It also attacks the roots of Ca
RM2ANCCB7–A text-book of mycology and plant pathology . B Fig. 42.—Exoascus and Taphrina. A-F, Exoascus pruni, A. Appearance ondiseased twig; B, cross-section of diseased fruirt; C, mycelium in tissues of host; D,young asci; E, mature ascus with spores; F, germination of spores; G, E, Exoascusalnitorquus; H, Taphrina aurea, ripe and unripe asci; J, Taphrina Sadebeckii. SeeDie naturlichen Pflanzenfamilien I. i, p. 159. crammed full of them (Fig. 42). The ascospores are generally ellip-soidal and always one-celled with colorless, yellow, or orange contents.The perennial mycelium is responsible for the f
![. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. Fig. 108. Ciavueps purpurea^ TuL A sderotium wbich has given rise to seven stromata. Supper portion of a stroma in median longitudinal section; cp perithecia. C highly magnified perithedum divided through the middle with the surrounding parts; cp orifice, sk cortical tissue, ky inner tissue of the stroma. D ascus isolated; sfi ascospores issuing. After Tulasne from Sachs" Lehrbuch. A natural size. B slighdy, C and D highly magnified. Fig. 109. Ciavicepi purpurea, Stock Photo](https://c8.alamy.com/comp/PG3XJH/comparative-morphology-and-biology-of-the-fungi-mycetozoa-and-bacteria-plant-morphology-fungi-myxomycetes-bacteriology-fig-108-ciavueps-purpurea-tul-a-sderotium-wbich-has-given-rise-to-seven-stromata-supper-portion-of-a-stroma-in-median-longitudinal-section-cp-perithecia-c-highly-magnified-perithedum-divided-through-the-middle-with-the-surrounding-parts-cp-orifice-sk-cortical-tissue-ky-inner-tissue-of-the-stroma-d-ascus-isolated-sfi-ascospores-issuing-after-tulasne-from-sachsquot-lehrbuch-a-natural-size-b-slighdy-c-and-d-highly-magnified-fig-109-ciavicepi-purpurea-PG3XJH.jpg ". Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. Fig. 108. Ciavueps purpurea^ TuL A sderotium wbich has given rise to seven stromata. Supper portion of a stroma in median longitudinal section; cp perithecia. C highly magnified perithedum divided through the middle with the surrounding parts; cp orifice, sk cortical tissue, ky inner tissue of the stroma. D ascus isolated; sfi ascospores issuing. After Tulasne from Sachs" Lehrbuch. A natural size. B slighdy, C and D highly magnified. Fig. 109. Ciavicepi purpurea, Stock Photo")
RMPG3XJH–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. Fig. 108. Ciavueps purpurea^ TuL A sderotium wbich has given rise to seven stromata. Supper portion of a stroma in median longitudinal section; cp perithecia. C highly magnified perithedum divided through the middle with the surrounding parts; cp orifice, sk cortical tissue, ky inner tissue of the stroma. D ascus isolated; sfi ascospores issuing. After Tulasne from Sachs" Lehrbuch. A natural size. B slighdy, C and D highly magnified. Fig. 109. Ciavicepi purpurea,
RMMCTNE0–. Fig. 49.—AV(//-;,; dl/is^inia. i, ;i hiMnch recently attacked, showing concentric cracking of the bark ; 2, an old wound showing a rugged callus round the wound ; 3, section through a stroma showing perithecia, a. on its surface ; 4, a peritheciuni; 5, section of same; 6, conidia; 7, a conidium germinating; 8, ascus containing spores, and accompanied by paraphyses. Figs, i and 2 reduced ; remainder highly mag. more prevalent, and perhaps it is not going too far to state that if we had no American blight or woolly aphis, we should have no epidemic of canker. The bark is first attacked and des
![Fungi, Ascomycetes, Ustilaginales, Uredinales . Fi 26. Gymnoascus sp.; a. ascocarp, x 26;b. ascus and free ascospores, x 1040. tn] PLECTASCALES 67 In G. candidus (fig.27 d) the antheridium and oogonium already differin form at the time of their union, and, in the majority of cases, appear to. Fig. 2j. Gymnoascus Reesii Baran.; a. surface view of conjugating cells;b. the same in longitudinal section; c. a later stage, septate oogoniumgiving rise t hyphae; Gymnoascus candidus Eidam; (/. surface view of conjugating cells; e. same in longitudinal section;all after Dale. Ctenomyces serratus Eidam; Stock Photo](https://c8.alamy.com/comp/2AN4HT6/fungi-ascomycetes-ustilaginales-uredinales-fi-26-gymnoascus-sp-a-ascocarp-x-26b-ascus-and-free-ascospores-x-1040-tn-plectascales-67-in-g-candidus-fig27-d-the-antheridium-and-oogonium-already-differin-form-at-the-time-of-their-union-and-in-the-majority-of-cases-appear-to-fig-2j-gymnoascus-reesii-baran-a-surface-view-of-conjugating-cellsb-the-same-in-longitudinal-section-c-a-later-stage-septate-oogoniumgiving-rise-t-hyphae-gymnoascus-candidus-eidam-surface-view-of-conjugating-cells-e-same-in-longitudinal-sectionall-after-dale-ctenomyces-serratus-eidam-2AN4HT6.jpg "Fungi, Ascomycetes, Ustilaginales, Uredinales . Fi 26. Gymnoascus sp.; a. ascocarp, x 26;b. ascus and free ascospores, x 1040. tn] PLECTASCALES 67 In G. candidus (fig.27 d) the antheridium and oogonium already differin form at the time of their union, and, in the majority of cases, appear to. Fig. 2j. Gymnoascus Reesii Baran.; a. surface view of conjugating cells;b. the same in longitudinal section; c. a later stage, septate oogoniumgiving rise t hyphae; Gymnoascus candidus Eidam; (/. surface view of conjugating cells; e. same in longitudinal section;all after Dale. Ctenomyces serratus Eidam; Stock Photo")
RM2AN4HT6–Fungi, Ascomycetes, Ustilaginales, Uredinales . Fi 26. Gymnoascus sp.; a. ascocarp, x 26;b. ascus and free ascospores, x 1040. tn] PLECTASCALES 67 In G. candidus (fig.27 d) the antheridium and oogonium already differin form at the time of their union, and, in the majority of cases, appear to. Fig. 2j. Gymnoascus Reesii Baran.; a. surface view of conjugating cells;b. the same in longitudinal section; c. a later stage, septate oogoniumgiving rise t hyphae; Gymnoascus candidus Eidam; (/. surface view of conjugating cells; e. same in longitudinal section;all after Dale. Ctenomyces serratus Eidam;
RMPG220H–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. Plate 47. X 600 X 600 STAUROTHELE UMBBINUM A. L. Sm. a. Whole plant, b. Portion of thallus and perithecia. c. Vertical section of thallus. d. Vertical section of perithecium. e. Ascus and hymenial gonidia. /, Spore.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural H
![. Die Gartenwelt . durch einen Schlauch (Ascus) und ferner durch eine Kapsel (Perithecium), welche charakteristische (für die Benennung der Gattungen wichtige) Stützfäden besitzt. Bei unserem „Apfelmehltau" (Podos- phaera leucotricha) sind diese Stützfäden an den Enden gabelästig verzweigt; in dem Perithecium befindet sich 1 Ascus mit 2 bis 8 Sporen. In seinem kompli- zierten Bau weicht also unser Mehltau vollständig ab von der einfachen Form der einzelligen Spaltpilze oder Bakterien. Die Ueberschrift des genannten Ar- tikels möchte vielleicht zu Irrtümern Ver- anlassung geben. Im ersten Stock Photo](https://c8.alamy.com/comp/MED45E/die-gartenwelt-durch-einen-schlauch-ascus-und-ferner-durch-eine-kapsel-perithecium-welche-charakteristische-fr-die-benennung-der-gattungen-wichtige-sttzfden-besitzt-bei-unserem-apfelmehltauquot-podos-phaera-leucotricha-sind-diese-sttzfden-an-den-enden-gabelstig-verzweigt-in-dem-perithecium-befindet-sich-1-ascus-mit-2-bis-8-sporen-in-seinem-kompli-zierten-bau-weicht-also-unser-mehltau-vollstndig-ab-von-der-einfachen-form-der-einzelligen-spaltpilze-oder-bakterien-die-ueberschrift-des-genannten-ar-tikels-mchte-vielleicht-zu-irrtmern-ver-anlassung-geben-im-ersten-MED45E.jpg ". Die Gartenwelt . durch einen Schlauch (Ascus) und ferner durch eine Kapsel (Perithecium), welche charakteristische (für die Benennung der Gattungen wichtige) Stützfäden besitzt. Bei unserem „Apfelmehltau" (Podos- phaera leucotricha) sind diese Stützfäden an den Enden gabelästig verzweigt; in dem Perithecium befindet sich 1 Ascus mit 2 bis 8 Sporen. In seinem kompli- zierten Bau weicht also unser Mehltau vollständig ab von der einfachen Form der einzelligen Spaltpilze oder Bakterien. Die Ueberschrift des genannten Ar- tikels möchte vielleicht zu Irrtümern Ver- anlassung geben. Im ersten Stock Photo")
RMMED45E–. Die Gartenwelt . durch einen Schlauch (Ascus) und ferner durch eine Kapsel (Perithecium), welche charakteristische (für die Benennung der Gattungen wichtige) Stützfäden besitzt. Bei unserem „Apfelmehltau" (Podos- phaera leucotricha) sind diese Stützfäden an den Enden gabelästig verzweigt; in dem Perithecium befindet sich 1 Ascus mit 2 bis 8 Sporen. In seinem kompli- zierten Bau weicht also unser Mehltau vollständig ab von der einfachen Form der einzelligen Spaltpilze oder Bakterien. Die Ueberschrift des genannten Ar- tikels möchte vielleicht zu Irrtümern Ver- anlassung geben. Im ersten
RM2ANCD5B–A text-book of mycology and plant pathology . Fig 40.—Diagrammatic representation of the development of the ascogenoushyphal system and of the mature ascus. (After Claussen.) 128 MYCOLOGY. Fig. 41.—9, Vegetative hyphae giving rise to storage cell; 10, paraphyses grow-ing out from storage cells; 11-14, fusion of nuclei in storage cell; 15, 16, nucleus withtwo nucleoli in storage cell; 17, large storage cell with single very large nucleus; 18,storage cell with very irregularly shaped nucleus; 19, storage cell containing onelarge and two small nuclei; 20, an irregularly shaped storage cell; 21, 2
![. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. MILDEWS AND RELATED FUNGI 159 shield-shaped, unappendaged, black, membranous to carbonous formed of radiating chains of cells. The asci are four- to eight-spored, short and associated with paraphyses. Two fungi which attack the coffee plant are the most important pathogenic spedes of the family:. Fig. 55.—A—D, Nectria cinnubarina. A, Stroma of conidia and fruit-bodies of fungus; B, stroma in section; C ascus; D, mycelium "with conidiospores; £. F, Nectria ditissima; F, conidia laye Stock Photo](https://c8.alamy.com/comp/PG4542/a-text-book-of-mycology-and-plant-pathology-plant-diseases-fungi-in-agriculture-plant-diseases-fungi-mildews-and-related-fungi-159-shield-shaped-unappendaged-black-membranous-to-carbonous-formed-of-radiating-chains-of-cells-the-asci-are-four-to-eight-spored-short-and-associated-with-paraphyses-two-fungi-which-attack-the-coffee-plant-are-the-most-important-pathogenic-spedes-of-the-family-fig-55ad-nectria-cinnubarina-a-stroma-of-conidia-and-fruit-bodies-of-fungus-b-stroma-in-section-c-ascus-d-mycelium-quotwith-conidiospores-f-nectria-ditissima-f-conidia-laye-PG4542.jpg ". A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. MILDEWS AND RELATED FUNGI 159 shield-shaped, unappendaged, black, membranous to carbonous formed of radiating chains of cells. The asci are four- to eight-spored, short and associated with paraphyses. Two fungi which attack the coffee plant are the most important pathogenic spedes of the family:. Fig. 55.—A—D, Nectria cinnubarina. A, Stroma of conidia and fruit-bodies of fungus; B, stroma in section; C ascus; D, mycelium "with conidiospores; £. F, Nectria ditissima; F, conidia laye Stock Photo")
RMPG4542–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. MILDEWS AND RELATED FUNGI 159 shield-shaped, unappendaged, black, membranous to carbonous formed of radiating chains of cells. The asci are four- to eight-spored, short and associated with paraphyses. Two fungi which attack the coffee plant are the most important pathogenic spedes of the family:. Fig. 55.—A—D, Nectria cinnubarina. A, Stroma of conidia and fruit-bodies of fungus; B, stroma in section; C ascus; D, mycelium "with conidiospores; £. F, Nectria ditissima; F, conidia laye
RMMAB5T6–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Fig. 1—4. Pachyphloeus melanoxanthus. Fig. L Aussenansicht des Fruchtkörpers, nat. Gr. Fig. 2. Längsschnitt eines Frucht- körpers, vergr., schematisch (Fe Yenae externae, Tr Tramaadern, iT Hymenium). Fig. 3. Partie aus dem Fruchtkörperinnern: Hymenium mit angrenzenden Venae ex- ternae (Ve)., Tr Tramaader, c unter der Einde des Fruchtkörpers liegende Ge- flechtsschicht. Fig. 4. Ascus, mit dem Scheitel an das Geflecht der Vena ex- terna grenzend. — Fig. 5. Pachyphloeus luteus. Längsschnitt durch den Frucht- kö
RM2AGAERX–. Dedication papers : scientific papers presented at the dedication of the laboratory building and plant houses, April 19-21, 1917. Fig. I. Opegrapha actcularis Riddle. Vertical section of apothecium (stipplingindicates dark coloration); paraphysis; ascus with two of the eight spores. On bark of Erythroxylon, Punta Aguila, Porto Rico, collected byN. L. Britton, J. F. Cowell, and Stewardson Brown, Feb. 27, 1915,no. 4682 (type!). Also, on Guilandina, Smiths Bay, St. Thomas,1276a, 1279; and on Coccolobis, Great Harbor Cay, Berry Islands,Bahamas, N. L. Britton and C. F. Millspaugh, no. 2545. This
RMPG2KB8–. Pharmaceutical botany. Botany; Botany, Medical. Fig. 35.—A single perithecium of Clmiceps Fig. 36.—Asci contain- purpurea, magnified, showing the contained ing the long, slender asco- asci. (From Sayre.) pores. (From Sayre.) ized by the appearance of a sac called an ascus in which ascospores are formed. The largest class of fungi. Order i. Protoascales, the yeasts (Saccharomycetes) (position doubtful). Order 2. Pezizales or cup fungi. Ex.: Peziza and Ascobolus. Order 3. Tuberales, the truffles. Order 4. Plectascales, the blue and green molds. Ex.: Aspergillus and Penicillium.. Please note th
RMMEFEM3–. Die forstinsekten Mitteleuropas. Ein lehr- und handbuch . Fig. 205. Stigmatomyces Baeri Peyr. A Spore; B—F Aufeinanderfolgende Entwicklungs- stadien nach der Sporenkeimung; D Bildung von Antheridien an, aus denen Spermatien austreten; E das geschlechtsreife Individuum mit den vollständig ausgebildeten Antheridien (rechts) und weibliebem Apparat (links); bei t das Trichogyn desselben; F der zu einem Perithecium umgewandelte weibliche Appnrat mit den sich entwickelnden Asci (Sporen- schläuchen); G ein reifer Ascus, vier Sporen enthaltend. Alles stark vergrößert. iNach Thaxter, aus dem Bonner L
RM2AXGG5Y–Annual report of the Fruit Growers' Association of Ontario, 1896 . Fig. 9. Fig. 10. Fig. 11. Fiff. 12. Fig. 13. Fig. 9.—Twig with two scale insects. One of them killed by Gor<lyceps clavulata, having three sporophores of the fungus. Fig. 10.—Head of one of the sporophores enlarged. Fig. 11.—Cross-section of head of sporophore showing the flask-like perithecia greatly enlarged. Theseperithecia are filled with sacs as indicated at a. Fife. 12.—A sac or ascus containing eight sporidia still more highly enlarged. Fig. 13.—A sporidium or seed magnified 750 diameters. The fly-fungus, Empusa muscc
RMPG3W71–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. ;j^T^HHiiyMHIMMil|E£ktS£ - ^«^ ^OC5i-$C30(!:3CDC:JC JCli C3C>c->CJ cvCT'. XIOOO X fiOO OPEGBAPHA ATBA Pers. n. Plant on bark, 5. Portion of thallus and apothecia. c. Vertical section of thallus. (7. Vertical section of apothecia. c. Ascus and paraphysis /. Spore.. 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 perfec
RMMEFEMC–. Die forstinsekten Mitteleuropas. Ein lehr- und handbuch . Fipf. 202. Cordyceps Fries. A, C. militaris (i.) Idrik. auf einer Raupe von Bombyx rubi, a unentwickelte, 6 entwickelte Fruchtträger mit den vorspringenden pupillenartigen Mündungen der Perithecien; B, C. entomorrkiza, Längsschnitt durch die Keule eines Fruchtträgers, die Anordnung der flaschenförmigen Perithecien zeigend; C geplatzter Ascus desselben Pilzes mit den acht langen, in Teilsporen zer- fallenden Ascosporen; D Konidienträger h, aus Teilsporen a von C. militaris gezüchtet und kuglige Konidien c abschnürend; E älterer Konidie
RM2AFMMRT–. Breeder and sportsman. * I t*? ^ *j J| ?<%**$? *%t i%t fr^HgHyJHgHlHy WHfl *»*. ITHACA GUNS HIS Illustration shows our No. 7 $300 list gun. It is impossible toshow by a cut the beautiful finish, workmanship and material of thisgrade of gun, it can only be appreciated after you have handledan«1 examined the gun for yourself. It is fitted with the best Dam-ascus or Whltworth Fluid Steel barrels, the finest figured Walnut stockthat Nature can produce, is hand checkered and engraved in the mostelaborate manner with dogs and birds inlaid In gold. Send for Art Cata-log describing our complete l
RMPG0PG3–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. Plate 33. X 600 X 1500 X 60(J GLYPHIS LABYEINTHICA Ach, a. Plant on baik. b. Portion of thallus and apothecia. c. Vertical section of thallus. d. Vertical section of apothecia. e. Ascus with paraphysis. /. Spores.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural His
RMMCK5FM–. Fifi.ll9.âf////.o./. ,,ââ /'(/ s.'lriae.w. The apotbeeia form Vilack lines on the needles. Ascus containing four .sp-ires (enlarged). Single spore with a gelatinous covering (still further enlarged). (Cop. frOui Rostnip.) Flo. 120.âHypodti-iiidla laricii. Larch- needle with apothecia on the under side. A, Pamphyse, and an ascus containing four spores. B, Isolated (enlarged) asco- spoi-e in its gelatinous coat. (v. Tubeuf del.) (66yw X 16/ui with a gelatinous nunulirane. The paraphyses are simple hyaline filaments, shorter than tlu* a.^ei. Lophodermium. Tlie ol>long apothecia are enil)edde
RM2AFMAP9–. Wilt disease of cotton, watermelon, and cowpea (Neocosmospora nov. gen.). OIL. ELON Wilt, le vessels are plugged by the fungus.. DESCEIPTIOX OF PLATE Y. 1. Peritlieciiim and ascospores from upland cotton. Salters Depot, WilliamsburgCo., S. C, Oct. 8,1895. Size 352 by 272 //. For comparison witli PL 1,1, whicb, how-ever, is less higlily magnitied. The ascospores of this perithecium vrere 10 by 10 fxTvith a -wrinkled exospore. Others on the same specimens were 9 by 9 «. More rarelythey were 9 by 10 j.i or 9 by 11 2. Pipe ascus and paraphysis from the same lot of specimens as 1. A paraphysisfro
RMPG21X7–. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. *--.<• X HO. X (KlO X I2(»i'' PYKENULA NITIDA Ach. a Whole plant, b. Portion ol thallus and perithecia. c. Vertical section of thallus. d. Vertical section of peritheoium. e. Ascus and paraphyses. /. Spore.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History
RMMCTJGK–. Fig. 204, A, B, E Genea verrucosa Vitt. A Qnersclinitt durch die Fruchtkörperwandnng mit dem Hymenium, stark vergr.; B Ascus mit Sporen, stark vergr.; E Habitus, nat. Gr. — C, J9 G. sphcurica Tul. C Habitus, nat. Gr.; D Längsschnitt durch den Frucbtkörper, vergr. — FG. hispidula Berk., Längsschnitt durch den Fruchtkörptr, vergr. (4, B Original, aus Rabenhorst's Kryptogaraenflora; C—^ nach Tulasne.) 2. Pseudhydnotrya Ed. Fischer nov. gen. Fruchtkörper unregelmäßig rundlich, von hohlen labyrinthisch verlaufenden Gängen oder Kammern durchsetzt, die an meh- reren Punkten der Fruchtkörperoberfläc
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