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Spore masses Stock Photos and Images
RMJ2C95F–Dense stand of Great horsetail (Equisteum telmateia) spore cones emerging from canal bank, Bathampton, Bath and northeast Somerset, UK, March.
RMT6992X–Photomicrograph of a resting spore of the filamentous fungus Basidiobolus meristosporus, known to cause zygomycotic infections and non-ulcerating subcutaneous masses in humans, 1970. Image courtesy Centers for Disease Control and Prevention (CDC) / Dr Libero Ajello. ()
RM2K455P4–Slime Mould spend most of their lives as microscopic single cell amoeboid like Protozoans. When they coalesce and mate they form these slime moulds
RM2K32GHN–The slime moulds are not related to fungi. Now considered a type of Protozoa they make these mobile plasmodium structures when feeding is easy
RMKR0W2J–This micrograph depicts rhinosporidiosis of the nose with the presence of numerous sporangia of Rhinosporidium seeberi, 1965. Rhinosporidiosis manifests as slow-growing, tumor-like masses, usually in the nasal mucosa or ocular conjunctivae of humans and animals. Patients with nasal involvement often have unilateral nasal obstruction or bleeding due to polyp formation. Image courtesy CDC/Dr. Martin Hicklin.
RM2RW7J5D–Natural close up fungi portrait of Stinkhorn, Phallaceae, in early autumn showing head patterns and flies foraging
RM2ANC08A–A text-book of mycology and plant pathology . are about seventy-two American species, is distinguishedfrom the other two less important genera by its single spores whichform dusty masses at maturity without any kind of inclosing membrane.Sorosporium has its spores agglutinated into balls which form more orless dusty masses. The spore balls are usually evanescent and thespores are very dark. The spores are agglutinated into balls in Toly-posporium, forming more or less dusty spore masses. The spore ballsare rather permanent, the spores adhering by folds, or thickenings ofthe outer coat. Family
RFKXDHD9–Trunk of an Infected Nursery tree from three Points of view. a. Point of infection; b. Area killed last year; c. Development ea…
RMA201NW–Shooting Star A Macro fungus on decaying log Shoots off masses of spores when hit by rain drop Surrey England October
RMPG4B6A–. Botany for agricultural students . Botany. BACTERIA 341 of the organism, develop abnormally, producing scabby formations which constitute the scabby areas on the tuber or root. The Plasmodia are finally transformed into spores which are liberated as powdery masses as the infected tissues die and the spore masses break open. It has been found that the spores can live in the ground for a num- ber of years and may also live adhering to the rind of the Potato. Treating seed Potatoes with weak solu- tions of formaldehyde or corrosive subhmate to kill the spores adhering to the tubers, and rotatin
RMJ2C958–Dense stand of Great horsetail (Equisteum telmateia) spore cones emerging from canal bank, Bathampton, Bath and northeast Somerset, UK, March.
RMMCK872–. 'A .Ik'- K^ Figs. 28 and 29. Chrysanthemum rust, showing the dark spore masses. [Facing page io8
RMT1HDX1–Diseases of glasshouse plants (1923) Diseases of glasshouse plants diseasesofglassh1923bewl Year: 1923 'A .Ik'- K Figs. 28 and 29. Chrysanthemum rust, showing the dark spore masses. [Facing page io8
RM2RXK30D–Natural close up fungi portrait of Stinkhorn, Phallaceae, in early autumn showing head patterns and flies foraging
![. The Quarterly journal of the Geological Society of London. [A &B are of the natural by 2 diameters, and C by 9.] gnified Compare the segments of Sphenopteris fontainei Seward (94) pi. i Vol. 69.] OCR KNOWLEDGE OF WEALDEN FLORAS. some specimens (for instance, A & E, text-fig. 4) the carbonizedcovering is broken at the distal end: there is, however, no decisiveevidence as to the nature of this structure, whether it is a capsuleor an inrolled fertile piece of lamina. The spore-masses, on sepa-ration from the covering and on treatment with macerating solution,show no indication of grouping into Stock Photo](https://c8.alamy.com/comp/2AFXJ96/the-quarterly-journal-of-the-geological-society-of-london-a-b-are-of-the-natural-by-2-diameters-and-c-by-9-gnified-compare-the-segments-of-sphenopteris-fontainei-seward-94-pi-i-vol-69-ocr-knowledge-of-wealden-floras-some-specimens-for-instance-a-e-text-fig-4-the-carbonizedcovering-is-broken-at-the-distal-end-there-is-however-no-decisiveevidence-as-to-the-nature-of-this-structure-whether-it-is-a-capsuleor-an-inrolled-fertile-piece-of-lamina-the-spore-masses-on-sepa-ration-from-the-covering-and-on-treatment-with-macerating-solutionshow-no-indication-of-grouping-into-2AFXJ96.jpg ". The Quarterly journal of the Geological Society of London. [A &B are of the natural by 2 diameters, and C by 9.] gnified Compare the segments of Sphenopteris fontainei Seward (94) pi. i Vol. 69.] OCR KNOWLEDGE OF WEALDEN FLORAS. some specimens (for instance, A & E, text-fig. 4) the carbonizedcovering is broken at the distal end: there is, however, no decisiveevidence as to the nature of this structure, whether it is a capsuleor an inrolled fertile piece of lamina. The spore-masses, on sepa-ration from the covering and on treatment with macerating solution,show no indication of grouping into Stock Photo")
RM2AFXJ96–. The Quarterly journal of the Geological Society of London. [A &B are of the natural by 2 diameters, and C by 9.] gnified Compare the segments of Sphenopteris fontainei Seward (94) pi. i Vol. 69.] OCR KNOWLEDGE OF WEALDEN FLORAS. some specimens (for instance, A & E, text-fig. 4) the carbonizedcovering is broken at the distal end: there is, however, no decisiveevidence as to the nature of this structure, whether it is a capsuleor an inrolled fertile piece of lamina. The spore-masses, on sepa-ration from the covering and on treatment with macerating solution,show no indication of grouping into
![. The book of choice ferns : for the garden, conservatory, and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates and numerous wood engravings, specially prepared for this work . Ferns; Ferns. 252 THE BOOK OF CHOICE FERNS. " Ferns of British India," by the kind permission of the author) ; their texture is soft and papery, and their colour dark green. The spore masses are disposed in irregular rows between the midvein and the margin.—Hooker., Species Filicum, iv., p. 64. Bedd Stock Photo](https://c8.alamy.com/comp/PG0A83/the-book-of-choice-ferns-for-the-garden-conservatory-and-stove-describing-and-giving-explicit-cultural-directions-for-the-best-and-most-striking-ferns-and-selaginellas-in-cultivation-illustrated-with-coloured-plates-and-numerous-wood-engravings-specially-prepared-for-this-work-ferns-ferns-252-the-book-of-choice-ferns-quot-ferns-of-british-indiaquot-by-the-kind-permission-of-the-author-their-texture-is-soft-and-papery-and-their-colour-dark-green-the-spore-masses-are-disposed-in-irregular-rows-between-the-midvein-and-the-marginhooker-species-filicum-iv-p-64-bedd-PG0A83.jpg ". The book of choice ferns : for the garden, conservatory, and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates and numerous wood engravings, specially prepared for this work . Ferns; Ferns. 252 THE BOOK OF CHOICE FERNS. " Ferns of British India," by the kind permission of the author) ; their texture is soft and papery, and their colour dark green. The spore masses are disposed in irregular rows between the midvein and the margin.—Hooker., Species Filicum, iv., p. 64. Bedd Stock Photo")
RMPG0A83–. The book of choice ferns : for the garden, conservatory, and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates and numerous wood engravings, specially prepared for this work . Ferns; Ferns. 252 THE BOOK OF CHOICE FERNS. " Ferns of British India," by the kind permission of the author) ; their texture is soft and papery, and their colour dark green. The spore masses are disposed in irregular rows between the midvein and the margin.—Hooker., Species Filicum, iv., p. 64. Bedd
RMMCK66Y–. Fi(!. 160.—Ustilago tritici. Wheat-smut. The central ear is normal and liealthy, the others are smutted and most of the spores ai'e already shed, (v. Tubeuf phot.) with a sporogenous mycelium from which arise the spore-masses; these are at first enclosed in whitish coverings consisting of tissues of the host-plant, but when mature they escape as a black dust or powder.
RMT1HRBN–Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplants00tube Year: 1897 320 USTILAGINEAE. side of the leaf. The black spore-masses are formed in the rind-parenchyma, and sometimes in the pith; they are set free by rupture of the epidermis. In autumn the symptoms are different. The plants appear normally developed, and have no coating of conidia; dark swollen spots, however, appear on the leaves and leaf-petioles, in consequence of the massing of black spore-balls in the
RM2AWJ5HY–Ontario Sessional Papers, 1901, No.12-16 . gh the epidermis in dense fasci-cles, giving rise to the black wart-like spore masses. • Pure cultures of this fungus were made on various media, and from these it wasseen that we had to do with a new fungus. A technical description of this new specieshas been published in the Botanical Gazette (December, 1900) under the name Trimma-tostroma abietina. So far the only trees found affected with this disease are the balsam [Abies bal-samea), and the white spruce [Abies alba) ; but there is little reason to expect that theNorway Spruce [Picea excelsa) is
RMPG0AM6–. The book of choice ferns : for the garden, conservatory, and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates and numerous wood engravings, specially prepared for this work . Ferns; Ferns. 10 THE BOOK OF CHOICE FERNS. borne on short stalks jointed close to the base, so that their very short articulation is concealed among the scales. The sori (spore masses) are disposed in a continuous line or chain close to and parallel with the midrib.—Hooker^ Species Filicum, iv., p. 158. Nicho
RMMCK5D1–. Fio. WO.âUstilago tritici. Wheat-smut. The central ear is normal and healthy, the others are smutted and most of the spores are alreadj' shed, (v. Tubeuf phot.) with a sporogenous mycelium from which arise the spore-masses; these are at first enclosed in whitish coverings consisting of tissues of the host-plant, but when mature they escape as a black dust or powder.
RMRX4R96–Effects of ozone atmospheres on Effects of ozone atmospheres on spoilage of fruits and vegetables after harvest effectsofozoneat801spal Year: 1968 MARKETING RESEARCH REPORT NO. 801, U.S. DEPARTMENT OF AGRICULTURE BN-29472 Figure 1.—Influence of ozone on the development of nests of Rhizopus stolonifer (top row) and Monilinia fructi- cola (bottom row) in peaches: A, Peaches held in air for 7 days at 60° F. showing the abundant mycelia of R. stolonifer spreading throughout the peaches and showing the powdery spore masses of M. fructicola; B, peaches held under the same conditions as A but with
RM2RW7GAA–Natural close up fungi portrait of Stinkhorn, Phallaceae, in early autumn showing head patterns and flies foraging
![The chestnut bark disease . Fig. 5.—Young tree showing postules on smooth bark, and sprouts. (See alsoFig. 11, page 221.) A closer examination reveals the diseased band near th(base of the affected portion. It is especially conspicuous oismooth bark, causing a reddish brown discoloration and pro-ducing numerous little pustules which break through the barland set free vast numbers of spores. These spore masses areorange colored but vary considerably in appearance accord-ing to climatic conditions. During warm, moist weather the]are especially prominent and sometimes may be seen as longicurly, y Stock Photo](https://c8.alamy.com/comp/2AWRB22/the-chestnut-bark-disease-fig-5young-tree-showing-postules-on-smooth-bark-and-sprouts-see-alsofig-11-page-221-a-closer-examination-reveals-the-diseased-band-near-thbase-of-the-affected-portion-it-is-especially-conspicuous-oismooth-bark-causing-a-reddish-brown-discoloration-and-pro-ducing-numerous-little-pustules-which-break-through-the-barland-set-free-vast-numbers-of-spores-these-spore-masses-areorange-colored-but-vary-considerably-in-appearance-accord-ing-to-climatic-conditions-during-warm-moist-weather-the-are-especially-prominent-and-sometimes-may-be-seen-as-longicurly-y-2AWRB22.jpg "The chestnut bark disease . Fig. 5.—Young tree showing postules on smooth bark, and sprouts. (See alsoFig. 11, page 221.) A closer examination reveals the diseased band near th(base of the affected portion. It is especially conspicuous oismooth bark, causing a reddish brown discoloration and pro-ducing numerous little pustules which break through the barland set free vast numbers of spores. These spore masses areorange colored but vary considerably in appearance accord-ing to climatic conditions. During warm, moist weather the]are especially prominent and sometimes may be seen as longicurly, y Stock Photo")
RM2AWRB22–The chestnut bark disease . Fig. 5.—Young tree showing postules on smooth bark, and sprouts. (See alsoFig. 11, page 221.) A closer examination reveals the diseased band near th(base of the affected portion. It is especially conspicuous oismooth bark, causing a reddish brown discoloration and pro-ducing numerous little pustules which break through the barland set free vast numbers of spores. These spore masses areorange colored but vary considerably in appearance accord-ing to climatic conditions. During warm, moist weather the]are especially prominent and sometimes may be seen as longicurly, y
RMPG0A7F–. The book of choice ferns : for the garden, conservatory, and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates and numerous wood engravings, specially prepared for this work . Ferns; Ferns. 262 THE BOOK OF CHOICE FERNS. sickle-shaped, rather blunt leafits (pinnules) slightly toothed at the edges and minutely white-dotted beneath. The spore masses are disposed chiefly on the middle parts of the leafits. As the specific name implies, the stalks are of a rough nature ; the colour of t
RMMCK6M1–. Fl(!. 160.—Uslilago tritici. Wheat-smut. The central ear is normal and healthy, the others are smutted and most of the spores are already shed, (v. Tubeuf phot.) with a sporogenous mycelium from which arise the spore-masses; these are at first enclosed in whitish coverings consistincr of tissues of the host-plant, but when mature they escape as a black dust or powder.
![Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] 340 DISEASES OF CULTIVATED PLANTS Maize smut {Usti/ago viaydis, D. C.) attacks maize or Indian corn, and often seriously interferes with the yield. It forms marked deformations on practically every part of the plant, under the form of large galls or blisters of a whitish colour. When approaching maturity the spore masses appear Pig. ioi. — Usiilago avcitac. i, a ' snuilti-d ' car of oats ; 2, spores ; 3, gi minating spores ; 4, secondary spores conjugating. Figs. 2-4 highly m Stock Photo](https://c8.alamy.com/comp/T1JE14/diseases-of-cultivated-plants-and-diseases-of-cultivated-plants-and-trees-diseasesofcultiv00massuoft-year-1910-340-diseases-of-cultivated-plants-maize-smut-ustiago-viaydis-d-c-attacks-maize-or-indian-corn-and-often-seriously-interferes-with-the-yield-it-forms-marked-deformations-on-practically-every-part-of-the-plant-under-the-form-of-large-galls-or-blisters-of-a-whitish-colour-when-approaching-maturity-the-spore-masses-appear-pig-ioi-usiilago-avcitac-i-a-snuilti-d-car-of-oats-2-spores-3-gi-minating-spores-4-secondary-spores-conjugating-figs-2-4-highly-m-T1JE14.jpg "Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] 340 DISEASES OF CULTIVATED PLANTS Maize smut {Usti/ago viaydis, D. C.) attacks maize or Indian corn, and often seriously interferes with the yield. It forms marked deformations on practically every part of the plant, under the form of large galls or blisters of a whitish colour. When approaching maturity the spore masses appear Pig. ioi. — Usiilago avcitac. i, a ' snuilti-d ' car of oats ; 2, spores ; 3, gi minating spores ; 4, secondary spores conjugating. Figs. 2-4 highly m Stock Photo")
RMT1JE14–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] 340 DISEASES OF CULTIVATED PLANTS Maize smut {Usti/ago viaydis, D. C.) attacks maize or Indian corn, and often seriously interferes with the yield. It forms marked deformations on practically every part of the plant, under the form of large galls or blisters of a whitish colour. When approaching maturity the spore masses appear Pig. ioi. — Usiilago avcitac. i, a ' snuilti-d ' car of oats ; 2, spores ; 3, gi minating spores ; 4, secondary spores conjugating. Figs. 2-4 highly m
RM2RW7J5B–Natural close up fungi portrait of Stinkhorn, Phallaceae, in early autumn showing head patterns and flies foraging
RM2AFXJN3–. The Quarterly journal of the Geological Society of London. 3) may bean indication of theirform. Xo sporangia havebeen recognized. The imperfect and bro-ken specimen representedof the natural size intext-fig. 3 B, affords thebest example of the habit of the fertile frond; at the apices ofa few of the branchlets are portions of the spore-masses. Apiece of the upper part of the specimen is shown twice the naturalsize in fig. 3 B. The occurrence of the fertile segments or spore-masses in connexion with the slender branches is shown moreclearly in PI. XII, fig. 12 a, and in text-fig. 3 A. One of
RMPG0AE1–. The book of choice ferns : for the garden, conservatory, and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates and numerous wood engravings, specially prepared for this work . Ferns; Ferns. Fi^. 39. Pinna of Polypodium diversifolium (nat. size). long, narrow leaflets seldom more than lin. broad, with the edge nearly entire or slightly undulated. They are of a somewhat leathery texture, very prettily veined, and their sori (spore masses) are disposed in a row on each side of and clo
![. Fig. 34. — Young quinces showing rust. After Bailey. time when the rust spores are expected to arrive; that is, at the time when the gelatinous spore masses are present on the cedar-apple. Blight (Bacillus amylovorus). — This disease has been sufficiently discussed in connection with the pear and apple. It is only necessary here to indicate that it is the most serious known disease of the quince. The treatment is the same as that recommended for this disease on other pomaceous trees. Leaf-blight, black-spot ^"^ (Fabroea maculata (Lev.) Atk., Entoinosporiuni).—Both the fruit and foliage Stock Photo](https://c8.alamy.com/comp/MCKB42/fig-34-young-quinces-showing-rust-after-bailey-time-when-the-rust-spores-are-expected-to-arrive-that-is-at-the-time-when-the-gelatinous-spore-masses-are-present-on-the-cedar-apple-blight-bacillus-amylovorus-this-disease-has-been-sufficiently-discussed-in-connection-with-the-pear-and-apple-it-is-only-necessary-here-to-indicate-that-it-is-the-most-serious-known-disease-of-the-quince-the-treatment-is-the-same-as-that-recommended-for-this-disease-on-other-pomaceous-trees-leaf-blight-black-spot-quot-fabroea-maculata-lev-atk-entoinosporiuniboth-the-fruit-and-foliage-MCKB42.jpg ". Fig. 34. — Young quinces showing rust. After Bailey. time when the rust spores are expected to arrive; that is, at the time when the gelatinous spore masses are present on the cedar-apple. Blight (Bacillus amylovorus). — This disease has been sufficiently discussed in connection with the pear and apple. It is only necessary here to indicate that it is the most serious known disease of the quince. The treatment is the same as that recommended for this disease on other pomaceous trees. Leaf-blight, black-spot ^"^ (Fabroea maculata (Lev.) Atk., Entoinosporiuni).—Both the fruit and foliage Stock Photo")
RMMCKB42–. Fig. 34. — Young quinces showing rust. After Bailey. time when the rust spores are expected to arrive; that is, at the time when the gelatinous spore masses are present on the cedar-apple. Blight (Bacillus amylovorus). — This disease has been sufficiently discussed in connection with the pear and apple. It is only necessary here to indicate that it is the most serious known disease of the quince. The treatment is the same as that recommended for this disease on other pomaceous trees. Leaf-blight, black-spot ^"^ (Fabroea maculata (Lev.) Atk., Entoinosporiuni).—Both the fruit and foliage
RMRYF052–Effects of ozone atmospheres on spoilage of fruits and vegetables after harvest effectsofozoneat801spal Year: 1968 MARKETING RESEARCH REPORT NO. 801, U.S. DEPARTMENT OF AGRICULTURE BN-29472 Figure 1.—Influence of ozone on the development of nests of Rhizopus stolonifer (top row) and Monilinia fructi- cola (bottom row) in peaches: A, Peaches held in air for 7 days at 60° F. showing the abundant mycelia of R. stolonifer spreading throughout the peaches and showing the powdery spore masses of M. fructicola; B, peaches held under the same conditions as A but with 0.5 p.p.m. ozone added, showi
RM2RW7J45–Natural close up fungi portrait of Stinkhorn, Phallaceae, in early autumn showing head patterns and flies foraging
RM2CE0A7Y–. Endothia parasitica and related species . th, nearly smooth on thesurface. The superficial mycelium was pale orange yellow. The pale yellow-ocher spore masses were minute, very numerous, and nearly covered the sur-face. The medium was slightly greenish about the sides of the flask justbeneath the mycelium. DISTINGUISHING CHARACTERS OF THE VARIOUS SPECIES ON CORN MEAL IN FLASKS. The color reactions of the various species on corn meal are verystriking. Endothia fiuens (PI. XXI, fig. lb), as noted above,changes the whole mass of the medium to perilla purple in less thana month. E. gyrosa and E.
RMPG0A3W–. The book of choice ferns : for the garden, conservatory, and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates and numerous wood engravings, specially prepared for this work . Ferns; Ferns. 330 THE BOOK OF CHOICE FERNS. a curious shape, being halbert-shaped at the base and very variable at the summit, where they are usually mucb divided after the manner of stag's horns. The spore masses, which are formed within the narrow margins of the fronds, appear on their upper surface like a
RMMCKACN–. Fig. 34. — Young quinces showing rust. After Bailey. time when the rust spores are expected to arrive; that is, at the time when the gelatinous spore masses are present on the cedar-apple. Blight {Bacillus amylovorus). — This disease has been sufficiently discussed in connection with the pear and apple. It is only necessary here to indicate that it is the most serious known disease of the quince. The treatment is the same as that recommended for this disease on other pomaceous trees. Leaf-blight, black-spot ^^ (Fabroea maculata (Lev.) Atk., Entomosporimn). — Both the fruit and foliage are af
![Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] 338 DISEASES OF CULTIVATED PLANTS forming fantastic curves. Aecidia fleshy, crowded, pale flesh- colour, spores angularly globose, orange-red. USTILAGINACEAE All the members of the present group are obligate parasites. In many instances the spores are produced in the ovary, often on the leaves, sometimes in the anthers. The spore pustules form sooty, black powdery masses when mature, and are Fig. ioo.—Gcrniin.iiing spores of species of Ustilaginaceae. I, Ustilago ariindinella Stock Photo](https://c8.alamy.com/comp/T1HT3A/diseases-of-cultivated-plants-and-diseases-of-cultivated-plants-and-trees-diseasesofcultiv00massuoft-year-1910-338-diseases-of-cultivated-plants-forming-fantastic-curves-aecidia-fleshy-crowded-pale-flesh-colour-spores-angularly-globose-orange-red-ustilaginaceae-all-the-members-of-the-present-group-are-obligate-parasites-in-many-instances-the-spores-are-produced-in-the-ovary-often-on-the-leaves-sometimes-in-the-anthers-the-spore-pustules-form-sooty-black-powdery-masses-when-mature-and-are-fig-ioogcrniiniiing-spores-of-species-of-ustilaginaceae-i-ustilago-ariindinella-T1HT3A.jpg "Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] 338 DISEASES OF CULTIVATED PLANTS forming fantastic curves. Aecidia fleshy, crowded, pale flesh- colour, spores angularly globose, orange-red. USTILAGINACEAE All the members of the present group are obligate parasites. In many instances the spores are produced in the ovary, often on the leaves, sometimes in the anthers. The spore pustules form sooty, black powdery masses when mature, and are Fig. ioo.—Gcrniin.iiing spores of species of Ustilaginaceae. I, Ustilago ariindinella Stock Photo")
RMT1HT3A–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] 338 DISEASES OF CULTIVATED PLANTS forming fantastic curves. Aecidia fleshy, crowded, pale flesh- colour, spores angularly globose, orange-red. USTILAGINACEAE All the members of the present group are obligate parasites. In many instances the spores are produced in the ovary, often on the leaves, sometimes in the anthers. The spore pustules form sooty, black powdery masses when mature, and are Fig. ioo.—Gcrniin.iiing spores of species of Ustilaginaceae. I, Ustilago ariindinella
RMRHDHNX–. The book of choice ferns for the garden, conservatory. and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates amd numerous wood engravings. Identification; Ferns. CHEILANTHES. 45 and spread from the main stalk at right angles ; they are lin. to 3m. long, and are cut down to the midrib into numerous pinnules (leafits) which are scarcely more than Jin, long and agam pinnatifid and notched : their margin is much incurved. The abundant sori (spore masses) are distinct and of a bright re
RMPG0AME–. The book of choice ferns : for the garden, conservatory, and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates and numerous wood engravings, specially prepared for this work . Ferns; Ferns. OLEANDRA. texture ; they are 6in. to 12in. long, IJin. to 2jin. broad, sligMy wavy, and pointed at their summit. The stalks, 2in. to 6in. long and often blackish, are jointed not far from the base. The abundant and conspicuous sori (spore masses) are scattered, but placed nearly all in the inner
RMMCK5CA–. Fig. 175.—Ttiburcinia trieatalis. Spore- Fig. 176.—Apex of an isolated promy- mass germinating; several promycelia have celium from Fig. 175 ; it carries a whorl of been produced and are proceeding to form branches, some of which have fused in pairs; whorls of branches. (After Woronin.) all are developing conidia. (After Woronin.) spaces of the pith and rind-parenchyma, also the vessels. The hyphae apply themselves closely to the cell-walls, and certain short branched hyphae actually penetrate into the cells. The spore-masses are developed from delicate branched multiseptate filaments of the
RMT1GRDG–Diseases of small grain crops Diseases of small grain crops in Illinois diseasesofsmallg35boew Year: 1939 BOEWE: DISEASES OF SMALL GRAIN CROPS 93 Life History.—The masses of smut broken open in threshing disintegrate into innumerable fine particles, each particle being a spore of the covered smut fungus. Many of these spores lodge on Fig. 36.—Covered smut of barley. Although the spikelets of infected heads are transformed to masses of black powder, they remain more or less intact until harvest. The head at the left is normal; the others are smutted. healthy grain, especially in the groove
RM2RW7J3W–Natural close up fungi portrait of Stinkhorn, Phallaceae, in early autumn showing head patterns and flies foraging
RMRHDJM5–. The book of choice ferns for the garden, conservatory. and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates amd numerous wood engravings. Identification; Ferns. OLEANDRA. 9. texture ; they are 6in. to 12in. long, ljin. to 2jin. broad, slightly wavy, and pointed at their summit. The stalks, 2in. to 6in. long and often blackish, are jointed not far from the base. The abundant and conspicuous sori (spore masses) are scattered, but placed nearly all in the inner half of the frond.— Ho
RMPG0AE6–. The book of choice ferns : for the garden, conservatory, and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates and numerous wood engravings, specially prepared for this work . Ferns; Ferns. POLYPODIUM. 109 long, the small ones spathulate (spoon-shaped), the larger ones ligulate (strap- shaped), bluntish at the point, gradually tapering downwards into a short stalk ; they are of a leathery texture and with edges slightly hairy. The abundant and closely-set sori (spore masses) are ov
RMMCK655–. Fic). 175.—Tuburcinia trientalis. Spore- Fio. 176.—Apex of an isolated promy- mass germinating; several promycelia have celium from Fig. 175 ; it carries a whorl of been produced and are proceeding to form branches, some of which have fused in pairs; whorls of branches. (After Woronin.) all are developing conidia. (After Woronin.) spaces of the pith and rind-parenchyma, also the vessels. The hyphae apply themselves closely to the cell-walls, and certain short branched hyphae actually penetrate into the cells. The spore-masses are developed from delicate branched multiseptate filaments of the
RMT1H1WF–Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplants00tube Year: 1897 Fig. U(i.—Ront-system of a Silver Fir overgrown and killed by the mycelium of Rliizina uiululala. (After Hartig.) Fig. 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
RM2RW7J3Y–Natural close up fungi portrait of Stinkhorn, Phallaceae, in early autumn showing head patterns and flies foraging
RMRHDJ7J–. The book of choice ferns for the garden, conservatory. and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates amd numerous wood engravings. Identification; Ferns. 92 THE BOOK OF CHOICE FERNS.. the fertile ones, longer and narrower (2in. to 4in. long and Jin. to Jin. broad), have their fructification confined to the upper part, which is narrowed or conspicuously contracted. The fronds are of a leathery texture and smooth on both sides, and the sori (spore masses) are disposed in sing
RMPG0A5E–. The book of choice ferns : for the garden, conservatory, and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates and numerous wood engravings, specially prepared for this work . Ferns; Ferns. PTERIS. 305 Jin. long and Jin. broad ; the texture of all is somewhat leathery, and they are densely clothed on both surfaces with viscid glands. The spore masses are covered with a double involucre of a parchment-like texture, the inner one being sometimes obsolete.—Hooker^ Species Filicum, ii.
RMMCK6JW–. Fi(i. 17:j.—Tuburcinia trientalU. Spore- Fig. 176.—Apex of an isolated promy- mass germinating; several promycelia have celium from Fig. 175 ; it carries a whorl of been produced and are proceeding to form branches, some of which have fused in pairs; whorls of branches. (Aiter Woronin.) aU are developing conidia. (After Woronin.) spaces of the pith and rind-parenchyma, also the vessels. The hyphae apply themselves closely to the cell-walls, and certain short branched hyphae actually penetrate into the cells. The spore-masses are developed from delicate branched multiseptate filaments of the
RMT1HY9N–Diseases of crop-plants in the Diseases of crop-plants in the Lesser Antilles diseasesofcroppl00nowe Year: 1923 DISEASES OF SUGAR CANE 321 produced from small stromatic masses on the surface of the spot. The conidia are cylindrical or long elliptical, with very thick walls, olive green to brown in colour, 3-10 septate. Red Leaf-Spot. Red leaf-spot, originally described from Java, is recorded Fig. 134 Eriosphaeria Sacchari From Wakker & Went Asci AND Spore from the West Indies by Went in Aruba Island and L. H. Gough in Trinidad. It is caused by an ascomycete with round black perithecia and
RM2RW7GA4–Natural close up fungi portrait of Stinkhorn, Phallaceae, in early autumn showing head patterns and flies foraging
RMRDE4NT–. The book of choice ferns : for the garden, conservatory, and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates and numerous wood engravings, specially prepared for this work . Ferns; Ferns. Fi^. 39. Pinna of Polypodium diversifolium (nat. size). long, narrow leaflets seldom more than lin. broad, with the edge nearly entire or slightly undulated. They are of a somewhat leathery texture, very prettily veined, and their sori (spore masses) are disposed in a row on each side of and clo
RMPG4ATE–. Botany for agricultural students . Botany. Fig. 348. — A Bird's Nest Fungus, Nidularia. About natural size. organic matter in the ground. Tlie sporophore is at first globose, but the gleba soon breaks out of the peridium and is elevated to some distance above ground by an elongating stalk. The spore masses arc slimy and have the odor of carrion. Certain insects which dissemi- nate the spores are attracted by the odor. Smuts (Ustilaginales). — The Smuts are parasitic Basidiomycetes. In some Smuts, the mycelium, although evident only in local areas, traverses widely through the host, while in
RMMCK994–. Fig. 37.—Peach twigs (Phillips Cling variety) spotted and killed by bacterial-gummosis organism. This fungus disease is easily controlled by spraying with 5-5-50 bor- deaux mixture (p. 156) in the fall. Spraying should be done about No- vember 15 (table 4), before heavy rains have fallen. A better coverage is obtained after the leaves are off and after pruning, but spraying should not be delayed beyond the middle of November on this account. Brown Rot.—The first sign of the disease in spring is the withered, brown blossoms covered by grayisli, powdery, spore masses. Young
RM2RW7J41–Natural close up fungi portrait of Stinkhorn, Phallaceae, in early autumn showing head patterns and flies foraging
RMRHDFN1–. The book of choice ferns for the garden, conservatory. and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates amd numerous wood engravings. Identification; Ferns. 602 THE BOOK OF CHOICE FERNS. slightly undulated. The texture is thin and papery and the colour deep green. The broad and distant sori (spore masses) do not reach either the edge or the midrib. In some fully-developed specimens the terminal leaflet is 1ft. long, considerably sinuated (wavy) upwards and proliferous (bud- be
RMPG4ATP–. Botany for agricultural students . Botany. 392 THALLOPHYTES. Fig. 348. — A Bird's Nest Fungus, Nidularia. About natural size. organic matter in the ground. Tlie sporophore is at first globose, but the gleba soon breaks out of the peridium and is elevated to some distance above ground by an elongating stalk. The spore masses arc slimy and have the odor of carrion. Certain insects which dissemi- nate the spores are attracted by the odor. Smuts (Ustilaginales). — The Smuts are parasitic Basidiomycetes. In some Smuts, the mycelium, although evident only in local areas, traverses widely through t
RMMCKC02–. Fig. 161.—Fuligo variaiis. The Plasmodium has crept over the soil in a plant-pot, and formed its mass of spores, which are covered with a yellow crust of lime. Reduced. ous; its Plasmodium often creeps up the stems of living grasses, and forms spore-masses up to 2-3 inches in length and an inch in diameter. These are at first covered with a white crust, which soon falls away, exposing the soot-like mass of spores, which are globose, minutely warted, dusky purple or brownish, 10-13 /x diameter. When produced in considerable quantity, the dense masses of spores are said to injure vegetation by
RM2RW7G8K–Natural close up fungi portrait of Stinkhorn, Phallaceae, in early autumn showing head patterns and flies foraging
RMRHDGCD–. The book of choice ferns for the garden, conservatory. and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates amd numerous wood engravings. Identification; Ferns. GYMNOGRAMME. 269 pinnules (leafits) overlapping ; they are of a soft texture, deep green and slightly powdered above, and very densely covered beneath with silvery-white farina. The sori (spore masses) are deeply immersed in the farinose powder, —Hooker, Filices Exoticce, t. 74. Nicholson, Dictionary of Gardening, ii., p.
RMPG0A9N–. The book of choice ferns : for the garden, conservatory, and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates and numerous wood engravings, specially prepared for this work . Ferns; Ferns. POLYPODIUM. 221 are of a soft, papery texture and dark green colour, and the spore masses are disposed at their extremity.—TTooker, Species Filicum., iv., p. 256. Beddome, Ferns of British India, t. 259. P. subfalcatum—sub-fal-ca'-tum (somewhat sickle-shaped), Blume. This distinct, greenhouse sp
RMMA71X6–. Effects of ozone atmospheres on spoilage of fruits and vegetables after harvest . BN-29472 Figure 1.—Influence of ozone on the development of nests of Rhizopus stolonifer (top row) and Monilinia fructi- cola (bottom row) in peaches: A, Peaches held in air for 7 days at 60° F. showing the abundant mycelia of R. stolonifer spreading throughout the peaches and showing the powdery spore masses of M. fructicola; B, peaches held under the same conditions as A but with 0.5 p.p.m. ozone added, showing reduced aerial mycelia of R. stolonifer and the ozone-induced spongy surface growth of M. fructicol
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