Quick filters:
Page 1 of 2
Basidiospore Stock Photos and Images
RM2KF3WWM–Ganoderma mushroom fruiting, Ganoderma lucidum, polypore fungi, family Ganodermataceae, Thiruvananthapuram, Kerala, India
RMMBNRWK–Dark field light micrograph of Lactarius rubrilacteus (bleeding milkcap) mushroom spores, pictured area is about 120 microns wide
RFH3PAE4–Mushroom gills. High power light micrograph (LM) of a section through the gills of a mushroom, Agaricus sp. (formerly Psalliota sp.). The hymenial layer, or hymenium, produces the spore-bearing structures known as basidia (blue). Many spores (basidiospores) are visible at the surface of this layer (purple).
RM2AYKHWC–Clitocybe odora (aniseed toadstool) mushroom spores under the microscope, photographed using 100x oil microscope objective
RMMBNRWE–Light micrograph of Lactarius rubrilacteus (bleeding milkcap) mushroom spores, field of view is approximately 120 micrometers tall
RMP83W6D–Nebrodini mushroom (Pleurotus nebrodensis cultivar) spores, pictured area is approximately 120 micrometers wide
RMMBNRWJ–Light micrograph of Lactarius rubrilacteus (bleeding milkcap) mushroom spores, field of view is approximately 0.11mm wide
RMKRNM93–Bright field light micrograph of various fungal spores from an air sample, stained with methyl blue, pictured area is about 170 micrometers wide
RF2W9RWDD–Lingzhi or Reishi mushrooms (Ganoderma lucidum) growing on a dead tree stump : (pix Sanjiv Shukla)
RM2BTXTND–Micrograph of Pholiota sp. mushroom spores (stained with lactophenol methyl blue), horizontal field of view is about 123 microns
RFRKPK61–Ganoderma boninense as the major pathogen that affects and kill the oil palm tree in Sabah Borneo Malaysia
RMKRNM92–Inverted bright field micrograph of various fungal spores from an air sample, stained with methyl blue, pictured area is about 170 micrometers wide
RM2GK75GR–two mature fruiting bodies of black polypore bracket fungus growing in and above cavity in mature beech tree (Fagus sylvatica) Cumbria, England, UK
RM2BTXTNF–Inverted bright field light micrograph of an edible wild oyster mushroom (Pleurotus sp.) spores, pictured area is about 170 micrometers wide
RM2CARXA7–Hollyhock rust caused by fungus Puccinia heterospora or P.malvacearum lower leaves of broad leafed plant covered in disease rife hot humid conditions
RMW3HXGG–Armillaria sp. (honey mushroom) spores under the microscope, magnification is about 824x when printed 10cm wide
RFH3PACK–Mushroom gills. High power light micrograph (LM) of a section through the gills of a mushroom, Agaricus sp. (formerly Psalliota sp.). The hymenial layer, or hymenium, produces the spore-bearing structures known as basidia (red). Many spores (basidiospores) are visible at the surface of this layer (yellow-black).
RMK04E8T–Light micrograph of an edible wild oyster mushroom (Pleurotus sp.) spores, stained with methyl blue, pictured area is about 170 micrometers wide
RF2BNWKTT–Mushrooms Encyclopedia vector design. Amanita muscaria fungi illustration on white background
RMKPP96B–Brightfield light photomicrograph of saffron milk cap (Lactarius deliciosus) spores, pictured area is approximately 160 micrometers wide
RM2ANBY45–A text-book of mycology and plant pathology . nseveral crops during the early summer. This summer stage is succeededby the autumn stage in which the sori become filled with stalked,two-celled, dark-colored spores with thick walls. The common nameof this stage is black rust. Wintering in the open these two-celledteliospores germinate. Each of the two cells may sprout out a pro-mycelium, or only one may do so. This basidium (promycelium) is igo MYCOLOGY upright and divided transversely into four cells, each of which cuts offa basidiospore. These basidiospores are blown to the leaves, twigs, orfr
RM2D7RCNC–Short-stemmed russula (Russula brevipes) spores under the microscope, inverted micrograph, horizontal filed of view is about 117 microns
RM2EM2CCH–Short-stemmed russula (Russula brevipes) spores (stained with iodine) under the microscope, horizontal filed of view is about 115 microns
![. The fungi which cause plant disease . Plant diseases; Fungi. 324 THE FUNGI WHICH CAUSE PLANT DISEASE verrucosely sculptured, borne singly, or sometimes in chains, (5) teliospores, smooth or variously sculptured but not echinulate, borne singly or in chains. In every species the mycelium even- tually gives rise to teliospores, which produce in germination four basidia, either remaining within the spore-cell or borne in the air on a short promycelium, each basidium supporting a single, stalked or sessile basidiospore. The order of some two thousand species, constituting the "rust" fu Stock Photo](https://c8.alamy.com/comp/PG4649/the-fungi-which-cause-plant-disease-plant-diseases-fungi-324-the-fungi-which-cause-plant-disease-verrucosely-sculptured-borne-singly-or-sometimes-in-chains-5-teliospores-smooth-or-variously-sculptured-but-not-echinulate-borne-singly-or-in-chains-in-every-species-the-mycelium-even-tually-gives-rise-to-teliospores-which-produce-in-germination-four-basidia-either-remaining-within-the-spore-cell-or-borne-in-the-air-on-a-short-promycelium-each-basidium-supporting-a-single-stalked-or-sessile-basidiospore-the-order-of-some-two-thousand-species-constituting-the-quotrustquot-fu-PG4649.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. 324 THE FUNGI WHICH CAUSE PLANT DISEASE verrucosely sculptured, borne singly, or sometimes in chains, (5) teliospores, smooth or variously sculptured but not echinulate, borne singly or in chains. In every species the mycelium even- tually gives rise to teliospores, which produce in germination four basidia, either remaining within the spore-cell or borne in the air on a short promycelium, each basidium supporting a single, stalked or sessile basidiospore. The order of some two thousand species, constituting the "rust" fu Stock Photo")
RMPG4649–. The fungi which cause plant disease . Plant diseases; Fungi. 324 THE FUNGI WHICH CAUSE PLANT DISEASE verrucosely sculptured, borne singly, or sometimes in chains, (5) teliospores, smooth or variously sculptured but not echinulate, borne singly or in chains. In every species the mycelium even- tually gives rise to teliospores, which produce in germination four basidia, either remaining within the spore-cell or borne in the air on a short promycelium, each basidium supporting a single, stalked or sessile basidiospore. The order of some two thousand species, constituting the "rust" fu
RM2D7RCND–Short-stemmed russula (Russula brevipes) spores under the microscope, horizontal filed of view is about 117 microns
RMT3YKBR–Archive image from page 366 of Die pilze in morphologischer, physiologischer,. Die pilze in morphologischer, physiologischer, biologischer und systematischer beziehung diepilzeinmorpho00zopf Year: 1890 Abschnitt VI. Systematik und Entwickelungsgeschichtc. 347 Fig- 8l. (B. 690.) Conidien- und Gemmenbildungen verschiedener Polyporeen nach Brefeld. I Kleines aus einer Basidiospore künstlich erzogenes Mycel von Heterobasidion annostti)! (Fries) (Polyporus nnnosus Fr.) mit mehreren reifen, bei a und einigen bei /' in der Anlage begriffenen Aspergillus- artigen Conidienträgern; 50fach. II vStüc
RF2W9RWDC–Lingzhi or Reishi mushrooms (Ganoderma lucidum) growing on a dead tree stump : (pix Sanjiv Shukla)
RMKPP96X–Dacrymyces palmatus (orange jelly fungus) on a log, with bright field light micrograph of its spores
RFRKPK2H–Ganoderma boninense as the major pathogen that affects and kill the oil palm tree in Sabah Borneo Malaysia
RMMCR7JG–. Fig- 8l. (B. 690.) Conidien- und Gemmenbildungen verschiedener Polyporeen nach Brefeld. I Kleines aus einer Basidiospore künstlich erzogenes Mycel von Heterobasidion annostti)! (Fries) (Polyporus nnnosus Fr.) mit mehreren reifen, bei a und einigen bei /' in der Anlage begriffenen Aspergillus- artigen Conidienträgern; 50fach. II vStück eines solchen Trägers mit zahlreichen, z. Th. abge- jallenen Conidien an dem kopfFörmig aufgeschwollenen Ende; 400fach. III Stlick eines Mycel- astes von Daedaka unicolor, dessen Zweige in Oidium-Ketten zerfallen sind, 350 fach. IV Ein eben solches Mycelfragmen
RM2CARY8E–Hollyhock rust caused by fungus Puccinia heterospora or P.malvacearum lower leaves of broad leafed plant covered in disease rife hot humid conditions
RM2CET85J–Hollyhock rust caused by fungus Puccinia heterospora or P.malvacearum lower leaves of broad leafed plant covered in disease rife hot humid conditions
RM2AXHCAF–Nature and development of plants . Fig. 163. Fig. 163. A common smut, Ustilago, transforming the kernels of corninto sooty black pustules. Fig. 164. The formation and germination of the spores of a smut: A, the formation of the spores from the mycelium in the kernel of corn. B, germination of a spore and the appearance of the basidiospore. takes place when the spores come in contact with the seed. Con-sequently, in these cases, the fungus can more readily be foughtby treating the seed with some fungicide as formaline and coppersulphate. 96. Order c. Agaricales or Mushrooms and Toadstools.—This
RMPG44BY–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. DETAILED ACCOUNT OF SPECIFIC DISEASES OF PLANTS 505 each cell of which produces a basidiospore. Infection of the nascent tissue at any part of the growing corn plant is accompUshed by the. Fig. 179.—Smut boil of Ustilago zea on ear of corn, developed from one infecte4 kernel. (After Jackson, F. S., Bull. 83, Del. Coll. Agric. Exper. Slat., December, 1908.) basidiospores and not by the chlamydospores (Fig. 181). Wet weather is essential for the growth of the corn and the smut also.. Plea
RF2W9RWDB–Lingzhi or Reishi mushrooms (Ganoderma lucidum) growing on a dead tree stump : (pix Sanjiv Shukla)
RMMCR7JC–. (B. 691.) Fig. 82. Einige Blätterschwämme (Agaricineen). I Hut vom Pfifferling (Cantitardbts cibarius) in halber nat. Gr. mit seinen chirch Queradern verbundenen Lamellen. II. Fruchtträger von Nyctalis asterop/iora, in verschiedenen Entwickelungsstadien einem Hute von Russula ni^-icans aufsitzend; halbe nat. Gr. III Ein älterer Zustand des i';v/«/w-Hutes im axilen Längsschnitt; /Lamellen, g Gemmenlager, nat. Gr. IV Eine Basidiospore sp hat ein kleines Mycel getrieben, an welchem man 2 Gemmen j,', sowie Oidienartige Abgliederungen 0 sieht; stark vergr. V Ein Oidiumglied zu einem kleinen Myce
RM2CET84X–Hollyhock rust caused by fungus Puccinia heterospora or P.malvacearum lower leaves of broad leafed plant covered in disease rife hot humid conditions
RM2AJD8BH–Elementary botany . Fig. 234.Portion of section of lamella of Agaricus campestris.tr, trama; sh, subhymenium; />, basidium; st, sttrigma(//. sterigmata); g; basidiospore. Fig. 235.Portion of liymenium of Co-prinus micaceus, showing largecystidium in the liymenium. two spinous processes at the free end. Each one is a slerig?na(plural slerigmala), and bears a gonidium. In a majority of themembers of the mushroom family each basidium bears fourspores. When mature these spores easily fall away, and a massof them gives a purplish-black color to objects on which they fall,so that a print of the u
![. The fungi which cause plant disease . Plant diseases; Fungi. 394 THE FUNGI WHICH CAUSE PLANT DISEASE nucleus b}^ two mitoses gives rise to four nuclei which wander through the sterigmata into the spores and constitute the four basidiospore nuclei. The significance of this phenomenon of fusion in the basidium followed by division, which is wide spread and apparently the. M NO P "0 l,0^.fl N:^ ^^ f^ ff /^: m A 7 ^#) ^ 8» f Id. 283.—Stages in the development of the basidium (Agaricus); original binucleate condition, followed (E-F) by fusion, and subsequent mitosis N-R, resulting in four sp Stock Photo](https://c8.alamy.com/comp/PG45Y2/the-fungi-which-cause-plant-disease-plant-diseases-fungi-394-the-fungi-which-cause-plant-disease-nucleus-b-two-mitoses-gives-rise-to-four-nuclei-which-wander-through-the-sterigmata-into-the-spores-and-constitute-the-four-basidiospore-nuclei-the-significance-of-this-phenomenon-of-fusion-in-the-basidium-followed-by-division-which-is-wide-spread-and-apparently-the-m-no-p-quot0-l0fl-n-f-ff-m-a-7-8-f-id-283stages-in-the-development-of-the-basidium-agaricus-original-binucleate-condition-followed-e-f-by-fusion-and-subsequent-mitosis-n-r-resulting-in-four-sp-PG45Y2.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. 394 THE FUNGI WHICH CAUSE PLANT DISEASE nucleus b}^ two mitoses gives rise to four nuclei which wander through the sterigmata into the spores and constitute the four basidiospore nuclei. The significance of this phenomenon of fusion in the basidium followed by division, which is wide spread and apparently the. M NO P "0 l,0^.fl N:^ ^^ f^ ff /^: m A 7 ^#) ^ 8» f Id. 283.—Stages in the development of the basidium (Agaricus); original binucleate condition, followed (E-F) by fusion, and subsequent mitosis N-R, resulting in four sp Stock Photo")
RMPG45Y2–. The fungi which cause plant disease . Plant diseases; Fungi. 394 THE FUNGI WHICH CAUSE PLANT DISEASE nucleus b}^ two mitoses gives rise to four nuclei which wander through the sterigmata into the spores and constitute the four basidiospore nuclei. The significance of this phenomenon of fusion in the basidium followed by division, which is wide spread and apparently the. M NO P "0 l,0^.fl N:^ ^^ f^ ff /^: m A 7 ^#) ^ 8» f Id. 283.—Stages in the development of the basidium (Agaricus); original binucleate condition, followed (E-F) by fusion, and subsequent mitosis N-R, resulting in four sp
RF2W9RWDG–Lingzhi or Reishi mushrooms (Ganoderma lucidum) growing on a dead tree stump : (pix Sanjiv Shukla)
RM2CET7XP–Hollyhock rust caused by fungus Puccinia heterospora or P.malvacearum lower leaves of broad leafed plant covered in disease rife hot humid conditions
RM2AXF88A–Text-book of structural and physiological botany . Fig.397.—Compound Fig. 398.—I. c Basidiospores of an Agaric; a cells of the spore {sporides- hymenium ; b basidium (x 300): II. ^ basidiospores of miu7ii) of Sphceria Geaster hygroinetHcus ; 7n mycelial filament; b basidium Scirpi (after De (after De Bary; x 390) ; III. a three basidia or sterigmata Bary ; x 390). of ^Jirz^/a ^/zVz^/,^?^.^:; <5 basidiospore (strongly magnified). the oldest on the basidium. In a few cases, as Cystopus 268 Structural and Physiological Botany, and Peronospora^ sporangia are formed instead of sporeson the basid
RF2W9RWDE–Lingzhi or Reishi mushrooms (Ganoderma lucidum) growing on a dead tree stump : (pix Sanjiv Shukla)
RM2CET815–Hollyhock rust caused by fungus Puccinia heterospora or P.malvacearum lower leaves of broad leafed plant covered in disease rife hot humid conditions
RMREF6G6–. Comparative morphology of Fungi. Fungi. CHAPTER XXV BASIDIOMYCETES In the Basidiomycetes, the gonotocont forms its spores exogenously in the manner of conidiophores instead of endogenously as in the Asco- mycetes. The sporophore is called the basidium and the spores basidiospores. The mycelium of the Basidiomycetes is divided, according to its morphological and cytological relationships, into three classes which are called primary, secondary and tertiary, because of their sequence in time (Falck, 1909; Bensaude 1918). The primary mycelium comes directly from the germinating basidiospore and
RF2W9RWD9–Lingzhi or Reishi mushrooms (Ganoderma lucidum) growing on a dead tree stump : (pix Sanjiv Shukla)
RMRH8079–. Botany of the living plant. Botany; Plants. BASIDIOMYCETES 437 swelling appears, and into it the protoplasm and nucleus pass. These are sometimes called sporidia : each is the product of a reduction- process and is recognised as a basidiospore (Fig. 335, s, s). Their. Fig. 336. Sporidia, or basidiospores, of Puccinia, germinating on the epidermis of a Barberry leaf, and putting out germ-tubes, which penetrate the cell-walls. Very highly magnified. (After Marshall Ward.) peculiarity is that they do not cause infection of the Wheat, but can penetrate the epidermis of the Barberry. Acting on su
RMRH1JAN–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 40 GROUPS OF SPORE-FORMS The relations of the various groups to one another are represented in the following diagram. The circle represents the Eu-forras; the substitution of any one chord in the place of the arc which it subtends shows how the life-history is shortened in the other cases. Only the abnormal Endophyllum cannot be included in such a scheme ; its spore-grouping could only be represented by the symbol 0 yjjh- teleutospore uredospore -^ O uredospore basidium basidiospore. mycelium secidiospore fusio
RMRDYFY8–. A textbook of botany for colleges and universities ... Botany. 82 MORPHOLOGY The basidiospore develops a mycelium that penetrates the young seedling of the host plant. (b) Uredinales General character. — These are the well-known rusts, all of them being destructive parasites, whose mycelia live in the intercellular spaces of higher plants, especially in the leaves. The best-known form is Puccinia graminis, one of the wheat rusts, and an outhne of its life history will serve as an illustration of the group. Wheat rust. —The mycelium traverses the tissues of the young wheat plant, and during t
RMRDYFWW–. A textbook of botany for colleges and universities ... Botany. TIIALLOPHYTES 89 so into the basidiospores, liave all been observed in mushrooms. In the common field mushroom {Agriacus campesiris) the basidium often produces only two sterigmata and spores, but in such cases four nuclei have been ob- served in the mature basidium. The vegetative mycelium has been observed to be binucleate, the con- dition found in the uredospore- teleutospore mycelium of rusts. With a uninucleate basidiospore and a binucleate mycelium, it is a matter of interest to determine where the binucleate condition orig
RMREF64T–. Comparative morphology of Fungi. Fungi. 550 COMPARATIVE MORPHOLOGY OF FUNGI a gel. The cells are binucleate, the terminal cells become pyriform, the dicaryon fuses, the diploid nucleus divides twice with more or less longitudinal spindles. The basidia are two celled. After the first division a single septum forms and one nucleus slips into the basidiospore while the other degenerates (Fig. 367, 2 to 7). Pilacrella Solani is rather better developed, the caps becoming fleshy discs while the fertile layer contains long sterile periphyses which extend above the basidia. Hoehneliomyces shows the
RMRE5BBR–. Cronartium comandrae in the Rocky Mountain States. Cronartium comandrae Rocky Mountains Region; Fungi Rocky Mountains Region. ately low relative humidity, and it is doubtful that pine infection could have resulted. In autumn, though longer moist periods associated with frontal storms are again more common, temperatures are probably too cold for basidiospore casting. Thus it seems that weather conditions that could lead to abundant pine infection are rare in the Rocky Mountain States. Tissue Susceptibility By the time teUa are present on comandra, stems of lodgepole pine have finished elongat
RMRDX0Y0–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. Fig. 149. Ustilago antheraritm Fr.; a. and b. conju- gating basidiospores; c. conjugation between a cell of the basidium and a basidiospore; after Harper. the other, but does not fuse with its nucleus (fig. 150). Later both nuclei divide, and a mycelium of binucleate cells is produced. It is on this mycelium that the infection of the host depends ; it penetrates the tissues usually of the seedling, but sometimes of the developing parts of the mature plant, being in most cases derived from spores which adhered to the seed coat. These may b
![. The British rust fungi (Uredinales), their biology and classification. Uredineae. 38 BASIDIOSPORES air, moreover, the four cells may not be formed ; the " basidium " may resemble, more or less, an ordinary germ-tube and possibly may function as such. Even if the four cells are formed, they may germinate by the protrusion of a germ-tube, which pre- sumably can cause infection by penetrating the cuticle (see Coons, 1912, p. 225). But, with access of air, each cell forms a sterigma and a basidiospore as previously described. These conidia are obviously adapted for wind-dispersion. If Stock Photo](https://c8.alamy.com/comp/RH1JB4/the-british-rust-fungi-uredinales-their-biology-and-classification-uredineae-38-basidiospores-air-moreover-the-four-cells-may-not-be-formed-the-quot-basidium-quot-may-resemble-more-or-less-an-ordinary-germ-tube-and-possibly-may-function-as-such-even-if-the-four-cells-are-formed-they-may-germinate-by-the-protrusion-of-a-germ-tube-which-pre-sumably-can-cause-infection-by-penetrating-the-cuticle-see-coons-1912-p-225-but-with-access-of-air-each-cell-forms-a-sterigma-and-a-basidiospore-as-previously-described-these-conidia-are-obviously-adapted-for-wind-dispersion-if-RH1JB4.jpg ". The British rust fungi (Uredinales), their biology and classification. Uredineae. 38 BASIDIOSPORES air, moreover, the four cells may not be formed ; the " basidium " may resemble, more or less, an ordinary germ-tube and possibly may function as such. Even if the four cells are formed, they may germinate by the protrusion of a germ-tube, which pre- sumably can cause infection by penetrating the cuticle (see Coons, 1912, p. 225). But, with access of air, each cell forms a sterigma and a basidiospore as previously described. These conidia are obviously adapted for wind-dispersion. If Stock Photo")
RMRH1JB4–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 38 BASIDIOSPORES air, moreover, the four cells may not be formed ; the " basidium " may resemble, more or less, an ordinary germ-tube and possibly may function as such. Even if the four cells are formed, they may germinate by the protrusion of a germ-tube, which pre- sumably can cause infection by penetrating the cuticle (see Coons, 1912, p. 225). But, with access of air, each cell forms a sterigma and a basidiospore as previously described. These conidia are obviously adapted for wind-dispersion. If
RMREEPFJ–. Comparative morphology of Fungi. Fungi. 528 COMPARATIVE MORPHOLOGY OF FUNGI septa into two daughter cells, each of which cuts off a basidiospore without a sterigma. The next cell below then swells and repeats the process basipetally. The basidiospores germinate with germ tubes or sprout conidia. S. albidum, on dead twigs in Ecuador, has true four-celled cruciate basidia.. 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.. Gä
RMRDX0Y3–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. Fig. 149. Ustilago antheraritm Fr.; a. and b. conju- gating basidiospores; c. conjugation between a cell of the basidium and a basidiospore; after Harper. the other, but does not fuse with its nucleus (fig. 150). Later both nuclei divide, and a mycelium of binucleate cells is produced. It is on this mycelium that the infection of the host depends ; it penetrates the tissues usually of the seedling, but sometimes of the developing parts of the mature plant, being in most cases derived from spores which adhered to the seed coat. These may b
RMRH809N–. Botany of the living plant. Botany; Plants. 432 BOTANY OF THE LIVING PLANT The basidium resembles the ascus in containing two nuclei when young. As in the ascus these first fuse with one another, and then follows division, first into two then into four, which is accompanied by nuclear reduction. In the more primitive types (Uredinales, Tremellales), the basidium divides after the fusion : in the Rusts it appears as a short mycelium (promycelium), from which four cells are partitioned off ; each of these puts out a short beak, or sterigma, and bears a basidiospore (Fig. 335, p. 436). In the m
RMRDX103–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. h I c /d Fig. 147. Ustilago Scabiosae Sow.; development of basidium; after Harper. least two divisions; the basidium in turn produces a number of uninucleate sporidia or basidiospores. The basidium may be unicellular, giving rise to a bunch of basidiospores at its apex (Tilletia (fig. %d)), or multicellular, usually four-celled, producing one or more basidiospores from each cell (Us- tilago (fig. 147 e)). The nucleus of the parent cell does not travel into the basidiospore but divides, sending one daughter nucleus into the spore, whi
RMRE38B2–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 40 GROUPS OF SPORE-FORMS The relations of the various groups to one another ar represented in the following diagram. The circle represent the Eu-forms; the substitution of any one chord in the placi of the arc which it subtends shows how the life-history i shortened in the other cases. Only the abnormal Endophylluv cannot be included in such a scheme; its spore-grouping couk only be represented by the symbol 0 yj-rf-. basidium teleutospore basidiospore uredospore uredospore. mycelium secidiospo: fusion-cell. Pl
![. The fungi which cause plant disease . Plant diseases; Fungi. 324 THE FUNGI WHICH CAUSE PLANT DISEASE verrucosely sculptured, borne singly, or sometimes in chains, (5) teliospores, smooth or variously sculptured but not echinulate, borne singly or in chains. In every species the mycelium even- tually gives rise to teliospores, which produce in germination four basidia, either remaining within the spore-cell or borne in the air on a short promycelium, each basidium supporting a single, stalked or sessile basidiospore. The order of some two thousand species, constituting the "rust" fu Stock Photo](https://c8.alamy.com/comp/RDE669/the-fungi-which-cause-plant-disease-plant-diseases-fungi-324-the-fungi-which-cause-plant-disease-verrucosely-sculptured-borne-singly-or-sometimes-in-chains-5-teliospores-smooth-or-variously-sculptured-but-not-echinulate-borne-singly-or-in-chains-in-every-species-the-mycelium-even-tually-gives-rise-to-teliospores-which-produce-in-germination-four-basidia-either-remaining-within-the-spore-cell-or-borne-in-the-air-on-a-short-promycelium-each-basidium-supporting-a-single-stalked-or-sessile-basidiospore-the-order-of-some-two-thousand-species-constituting-the-quotrustquot-fu-RDE669.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. 324 THE FUNGI WHICH CAUSE PLANT DISEASE verrucosely sculptured, borne singly, or sometimes in chains, (5) teliospores, smooth or variously sculptured but not echinulate, borne singly or in chains. In every species the mycelium even- tually gives rise to teliospores, which produce in germination four basidia, either remaining within the spore-cell or borne in the air on a short promycelium, each basidium supporting a single, stalked or sessile basidiospore. The order of some two thousand species, constituting the "rust" fu Stock Photo")
RMRDE669–. The fungi which cause plant disease . Plant diseases; Fungi. 324 THE FUNGI WHICH CAUSE PLANT DISEASE verrucosely sculptured, borne singly, or sometimes in chains, (5) teliospores, smooth or variously sculptured but not echinulate, borne singly or in chains. In every species the mycelium even- tually gives rise to teliospores, which produce in germination four basidia, either remaining within the spore-cell or borne in the air on a short promycelium, each basidium supporting a single, stalked or sessile basidiospore. The order of some two thousand species, constituting the "rust" fu
![. The British rust fungi (Uredinales) their biology and classification. Rust fungi. BASIDIOSPORES â , moreover, the four cells may not be formed ; the " basidium " ly resemble, more or less, an ordinary germ-tube and possibly ly function as such. Even if the four cells are formed, they ly germinate by the protrusion of a germ-tube, which pre- mably can cause infection by penetrating the cuticle (see )ons, 1912, p. 225). But, with access of air, each cell forms a jrigma and a basidiospore as previously described. These aidia are obviously adapted for wind-dispersion. If they [ght on a Stock Photo](https://c8.alamy.com/comp/RE38B7/the-british-rust-fungi-uredinales-their-biology-and-classification-rust-fungi-basidiospores-moreover-the-four-cells-may-not-be-formed-the-quot-basidium-quot-ly-resemble-more-or-less-an-ordinary-germ-tube-and-possibly-ly-function-as-such-even-if-the-four-cells-are-formed-they-ly-germinate-by-the-protrusion-of-a-germ-tube-which-pre-mably-can-cause-infection-by-penetrating-the-cuticle-see-ons-1912-p-225-but-with-access-of-air-each-cell-forms-a-jrigma-and-a-basidiospore-as-previously-described-these-aidia-are-obviously-adapted-for-wind-dispersion-if-they-ght-on-a-RE38B7.jpg ". The British rust fungi (Uredinales) their biology and classification. Rust fungi. BASIDIOSPORES â , moreover, the four cells may not be formed ; the " basidium " ly resemble, more or less, an ordinary germ-tube and possibly ly function as such. Even if the four cells are formed, they ly germinate by the protrusion of a germ-tube, which pre- mably can cause infection by penetrating the cuticle (see )ons, 1912, p. 225). But, with access of air, each cell forms a jrigma and a basidiospore as previously described. These aidia are obviously adapted for wind-dispersion. If they [ght on a Stock Photo")
RMRE38B7–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. BASIDIOSPORES â , moreover, the four cells may not be formed ; the " basidium " ly resemble, more or less, an ordinary germ-tube and possibly ly function as such. Even if the four cells are formed, they ly germinate by the protrusion of a germ-tube, which pre- mably can cause infection by penetrating the cuticle (see )ons, 1912, p. 225). But, with access of air, each cell forms a jrigma and a basidiospore as previously described. These aidia are obviously adapted for wind-dispersion. If they [ght on a
RMRDE1H2–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. DETAILED ACCOUNT OF SPECIFIC DISEASES OF PLANTS 505 each cell of which produces a basidiospore. Infection of the nascent tissue at any part of the growing corn plant is accompUshed by the. Fig. 179.—Smut boil of Ustilago zea on ear of corn, developed from one infecte4 kernel. (After Jackson, F. S., Bull. 83, Del. Coll. Agric. Exper. Slat., December, 1908.) basidiospores and not by the chlamydospores (Fig. 181). Wet weather is essential for the growth of the corn and the smut also.. Plea
RMRH1JCX–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. K) (iROll'S OF SPORE-FORMS The relations of the various groups to one another are represented in the following diagram. The circle represents the Eu-form8; the substitution of any one chord in the place of tin' arc which it subtends shows how the life-history is short,ned in the other eases. Only the abnormal Endophyllum cannol be Included in such a scheme; it> spoiv-^ruuping could only be represented by the symbol O TTTf • basidium teleutospore uredospore ft o uredospore basidiospore. mycel
![. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 38 BASIDIOSPOEES air, moreover, i he four cells may qoI be formed ; the " basidium may rcsoinblc, more or less, an ordinary germ-tube and possibly may function as such. Even if the torn- cells are formed, bhey may germinate by the protrusion of a germ-tube, which pre- sumably can cause infection by penetrating the cuticle (see Coons, 1912. ]». 225). But, with access of air, each cell forms a sterigma and a basidiospore as previously described. The-. conidia are obviously adapted for wind-d Stock Photo](https://c8.alamy.com/comp/RH1JDB/the-british-rust-fungi-uredinales-their-biology-and-classification-rust-fungi-great-britain-38-basidiospoees-air-moreover-i-he-four-cells-may-qoi-be-formed-the-quot-basidium-may-rcsoinblc-more-or-less-an-ordinary-germ-tube-and-possibly-may-function-as-such-even-if-the-torn-cells-are-formed-bhey-may-germinate-by-the-protrusion-of-a-germ-tube-which-pre-sumably-can-cause-infection-by-penetrating-the-cuticle-see-coons-1912-225-but-with-access-of-air-each-cell-forms-a-sterigma-and-a-basidiospore-as-previously-described-the-conidia-are-obviously-adapted-for-wind-d-RH1JDB.jpg ". The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 38 BASIDIOSPOEES air, moreover, i he four cells may qoI be formed ; the " basidium may rcsoinblc, more or less, an ordinary germ-tube and possibly may function as such. Even if the torn- cells are formed, bhey may germinate by the protrusion of a germ-tube, which pre- sumably can cause infection by penetrating the cuticle (see Coons, 1912. ]». 225). But, with access of air, each cell forms a sterigma and a basidiospore as previously described. The-. conidia are obviously adapted for wind-d Stock Photo")
RMRH1JDB–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 38 BASIDIOSPOEES air, moreover, i he four cells may qoI be formed ; the " basidium may rcsoinblc, more or less, an ordinary germ-tube and possibly may function as such. Even if the torn- cells are formed, bhey may germinate by the protrusion of a germ-tube, which pre- sumably can cause infection by penetrating the cuticle (see Coons, 1912. ]». 225). But, with access of air, each cell forms a sterigma and a basidiospore as previously described. The-. conidia are obviously adapted for wind-d
RMRDX109–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. h I c /d Fig. 147. Ustilago Scabiosae Sow.; development of basidium; after Harper. least two divisions; the basidium in turn produces a number of uninucleate sporidia or basidiospores. The basidium may be unicellular, giving rise to a bunch of basidiospores at its apex (Tilletia (fig. %d)), or multicellular, usually four-celled, producing one or more basidiospores from each cell (Us- tilago (fig. 147 e)). The nucleus of the parent cell does not travel into the basidiospore but divides, sending one daughter nucleus into the spore, whi
RMREEPGA–. Comparative morphology of Fungi. Fungi. 524 COMPARATIVE MORPHOLOGY OF FUNGI The germination of basidiospores has only been reported in the last three genera. A basidiospore of Exidia repanda divides into two daughter. d$*s* Fig. 344.—Exidia repanda. 1. a, tip of mature sterigma with reniform basidiospore; b, germination of basidiospore with falcate conidia. 2. Exidia saccharina, var. foliacea. (Ulocolla foliacea). b, germinating basidiospore; c, germinating conidia. Tremella lutes- cens. 3. Mature basidium. 4. Germinating basidiospores, one surrounded by sprout cells. 5. Sprout mycelium. 6.
RMRE1R0F–. Nature and development of plants. Botany. W A B Fig. i66. Fig. 167. Fig. 166. A common smut, Ustilago, transforming the kernels of corn into sooty black pustules. Fig. 167. The formation and germination of the spore of a smut: A, the formation of the spores from the mycelium in the kernel of corn. B, germination of a spore and the appearance of the basidiospore. of the United States exceeds $2,000,000 annually. In the case of corn, the parasite keeps pace with the growth of the plant without producing serious damage until the flowers appear, when the mycelium increases greatly in the affecte
RMREER2T–. Comparative morphology of Fungi. Fungi. Fig. 299.—Scleroderma Bovista. 1. Median section of periphery of young fructifica- tion. Per, peridium; Kn, knots of hyphae; Tr, tramal hyphae between the knots. 2. Knot at the beginning of basidial formation. 3. Basidiospore with nurse hyphae. (1 X 65; 2 X 375; 3 X 570; after Rabinowitsch, 1894.) basidia (Fig. 299, 2) which absorb the content of the knot hyphae, so that during the later development of the basidia there are no traces of the knot fundaments. The vacuolate, collapsed hyphae of the ground tissue surround the spores and cling to them so th
RMREF6FN–. Comparative morphology of Fungi. Fungi. 398 COMPARATIVE MORPHOLOGY OF FUNGI within pycnia. In the Basidiomycetes, they do not reach the stage of development they do in the Ascomycetes; for example, the type of conidiophores of the Plectascales are unknown in the Basidiomycetes.. Fig. 265.—Corticium bombycinum. 1. Group of basidia. 2. Mature basidiospore. 3 to 6. Germination of basidiospores. 7 to 11. Development of basidia. 12 to 14. Development of basidiospores. (1 to 5, 7 to 14 X 1,000; 6 X 700; after Kniep, 1913.) In the Basidiomycetes, conidia play an altogether subordinate role. Their e
RMREEPDK–. Comparative morphology of Fungi. Fungi. Fig. 356.—Dacryomyces dcliquescens. Development of basidia. (X 1,330; after Juel, 1898.) which the nucleus migrates. The two nuclei remaining in the basidium degenerate (Gilbert, 1921). At germination, the basidiospore divides into four daughter cells, each of which cuts off on one or two short germ tubes small fascicles of 0 0. Fig. 357.—Dacryomyces deliquescens. 1. Germination of basidiospores in water. 2. Germination in concentrated nutrient solution. 3. Portion of conidial hyphae. 4. Diagrammatic section of an oidial fructification. Dacryomyces ovi
RMRDWFR5–. Nature and development of plants. Botany. B Fig. 166. Fig. 167. Fig. 166. A common smut, Ustilago, transforming the kernels of corn into sooty black pustules. Fig. 167. The formation and germination of the spore of a smut: A, the formation of the spores from the mycelium in the kernel of corn. B, germination of a spore and the appearance of the basidiospore. of the United States exceeds $2,000,000 annually. In the case of corn, the parasite keeps pace with the growth of the plant without producing serious damage until the flowers appear, when the mycelium increases greatly in the affected ea
RMREF6CN–. Comparative morphology of Fungi. Fungi. 432 COMPARATIVE MORPHOLOGY OF FUNGI laterally, arise four, occasionally five or six, protuberances which become ellipsoidal, sessile spores (Fig 273, 1 and 2). In damp weather they germinate while on the basidium without being ab join ted, and each forms a short germ tube (Figs. 273, 3 and 4; 274, 8 and 9) which may branch and swell terminally to a conidium, slightly curved and pointed at the end. The conidia abjoint and germinate immediately, in T. helicospora by further sprouting. In T. deliquescens, the basidiospore, the germ tube and conidia are un
RMRGBFKP–. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. &M? Contribution from the Bureau of Plant Industry WM. A. TAYLOR, Chief. jiC^ve. Washington, D. C. PROFESSIONAL PAPER May, 1922 STUDIES OF CERTAIN FUNGI OF ECONOMIC IMPORTANCE IN THE DECAY OF BUILDING TIMBERS, WITH SPECIAL REFERENCE TO THE FACTORS WHICH FAVOR THEIR DEVELOPMENT AND DISSEMINATION. By Walter H. Snell,1 Forest Pathologist, Office of Investigations in Forest Pathology. CONTENTS. Page. Introduction 1 Basidiospores 4 Sources of basidiospore ma- terial 4 Methods used in the basidio- spore studies 5 Germina
RMREEPDR–. Comparative morphology of Fungi. Fungi. DA CR YOM YCE TALES 537 fork at their tip and develop two long sterigmata into each of which a nucleus migrates (Fig. 356, 1 to 3). When the sterigmata have reached the outer surface of the gel, each cuts off a hyaline ovoidal spore, into m. Fig. 356.—Dacryomyces dcliquescens. Development of basidia. (X 1,330; after Juel, 1898.) which the nucleus migrates. The two nuclei remaining in the basidium degenerate (Gilbert, 1921). At germination, the basidiospore divides into four daughter cells, each of which cuts off on one or two short germ tubes small fas
RMRE5BBY–. Cronartium comandrae in the Rocky Mountain States. Cronartium comandrae Rocky Mountains Region; Fungi Rocky Mountains Region. JULY AUGUST Figure 21.A successful suction trapping of basidiospores; and the corresponding weather data in Beaver Mountain plot 1966. trapped, but also visual observations indicated that basidiospore production had seldom occurred. Low temperatures prevent any appreciable cast at night during radiation dew periods even though relative humidity near comandra commonly reaches 100 per- cent for 4 to 6 hours. Moisture from thundershowers usually does not last long enoug
RMREF5PE–. Comparative morphology of Fungi. Fungi. Fig. 390. Fig. 391. Fig. 390.—Telia of Triphragmium Ulmariac. (X 300; after Sappin-Trouffy, 1896.) Fig. 391.—Zaghouania Phillyreae. 1. T, teliospore; B, basidium; Bsp 2. Hemileia vastatrix. Group of teliospores and Sydow, 1915.) basidiospore. ( X 320; after Patouillard from Hariot, 1908,. 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.. Gäumann, Ernst Albert, 1893-1963; Dodge, Carrol
![. The classification of lower organisms. Biology. 144] The Classification of Lower Organisms. Fig. 28.—Basidiomygetes : a. Two germinating basidiosporcs of Agariciis campcs- tris produce mycelia which anastomose freely, the cells becoming plurinucleate, after Hein (1930), x 500. b, c. Young and older basidia of Cystobasidium sebaceum, after Martin (1939). d-g, Eocronartium muscicola after P'itzpatrick (1918); d, fus- ion nucleus; e, homeotypic division in the basidium; f, four-celled basidium; g, pro- duction of basidiospore. h^ i^ i, Basidia of Ustilago Heujlcri, U. Hurdei, and Tille- (Contin Stock Photo](https://c8.alamy.com/comp/REK8PA/the-classification-of-lower-organisms-biology-144-the-classification-of-lower-organisms-fig-28basidiomygetes-a-two-germinating-basidiosporcs-of-agariciis-campcs-tris-produce-mycelia-which-anastomose-freely-the-cells-becoming-plurinucleate-after-hein-1930-x-500-b-c-young-and-older-basidia-of-cystobasidium-sebaceum-after-martin-1939-d-g-eocronartium-muscicola-after-pitzpatrick-1918-d-fus-ion-nucleus-e-homeotypic-division-in-the-basidium-f-four-celled-basidium-g-pro-duction-of-basidiospore-h-i-i-basidia-of-ustilago-heujlcri-u-hurdei-and-tille-contin-REK8PA.jpg ". The classification of lower organisms. Biology. 144] The Classification of Lower Organisms. Fig. 28.—Basidiomygetes : a. Two germinating basidiosporcs of Agariciis campcs- tris produce mycelia which anastomose freely, the cells becoming plurinucleate, after Hein (1930), x 500. b, c. Young and older basidia of Cystobasidium sebaceum, after Martin (1939). d-g, Eocronartium muscicola after P'itzpatrick (1918); d, fus- ion nucleus; e, homeotypic division in the basidium; f, four-celled basidium; g, pro- duction of basidiospore. h^ i^ i, Basidia of Ustilago Heujlcri, U. Hurdei, and Tille- (Contin Stock Photo")
RMREK8PA–. The classification of lower organisms. Biology. 144] The Classification of Lower Organisms. Fig. 28.—Basidiomygetes : a. Two germinating basidiosporcs of Agariciis campcs- tris produce mycelia which anastomose freely, the cells becoming plurinucleate, after Hein (1930), x 500. b, c. Young and older basidia of Cystobasidium sebaceum, after Martin (1939). d-g, Eocronartium muscicola after P'itzpatrick (1918); d, fus- ion nucleus; e, homeotypic division in the basidium; f, four-celled basidium; g, pro- duction of basidiospore. h^ i^ i, Basidia of Ustilago Heujlcri, U. Hurdei, and Tille- (Contin
![. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Washington, D. C. PROFESSIONAL PAPER May, 1922 STUDIES OF CERTAIN FUNGI OF ECONOMIC IMPORTANCE IN THE DECAY OF BUILDING TIMBERS, WITH SPECIAL REFERENCE TO THE FACTORS WHICH FAVOR THEIR DEVELOPMENT AND DISSEMINATION. By Walter H. Snell,1 Forest Pathologist, Office of Investigations in Forest Pathology. CONTENTS. Page. Introduction 1 Basidiospores 4 Sources of basidiospore ma- terial 4 Methods used in the basidio- spore studies 5 Germination of the basidio- spores 5 Retention of the vi Stock Photo](https://c8.alamy.com/comp/RG8RB8/bulletins-on-forest-pathology-from-bulletin-usda-washington-dc-1913-1925-trees-plant-diseases-washington-d-c-professional-paper-may-1922-studies-of-certain-fungi-of-economic-importance-in-the-decay-of-building-timbers-with-special-reference-to-the-factors-which-favor-their-development-and-dissemination-by-walter-h-snell1-forest-pathologist-office-of-investigations-in-forest-pathology-contents-page-introduction-1-basidiospores-4-sources-of-basidiospore-ma-terial-4-methods-used-in-the-basidio-spore-studies-5-germination-of-the-basidio-spores-5-retention-of-the-vi-RG8RB8.jpg ". [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Washington, D. C. PROFESSIONAL PAPER May, 1922 STUDIES OF CERTAIN FUNGI OF ECONOMIC IMPORTANCE IN THE DECAY OF BUILDING TIMBERS, WITH SPECIAL REFERENCE TO THE FACTORS WHICH FAVOR THEIR DEVELOPMENT AND DISSEMINATION. By Walter H. Snell,1 Forest Pathologist, Office of Investigations in Forest Pathology. CONTENTS. Page. Introduction 1 Basidiospores 4 Sources of basidiospore ma- terial 4 Methods used in the basidio- spore studies 5 Germination of the basidio- spores 5 Retention of the vi Stock Photo")
RMRG8RB8–. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Washington, D. C. PROFESSIONAL PAPER May, 1922 STUDIES OF CERTAIN FUNGI OF ECONOMIC IMPORTANCE IN THE DECAY OF BUILDING TIMBERS, WITH SPECIAL REFERENCE TO THE FACTORS WHICH FAVOR THEIR DEVELOPMENT AND DISSEMINATION. By Walter H. Snell,1 Forest Pathologist, Office of Investigations in Forest Pathology. CONTENTS. Page. Introduction 1 Basidiospores 4 Sources of basidiospore ma- terial 4 Methods used in the basidio- spore studies 5 Germination of the basidio- spores 5 Retention of the vi
RMREF5WH–. Comparative morphology of Fungi. Fungi. Fig. 383.—1. Coleosporium Sonchi-arvensis. Hymenium. 2. Thekopsora areolata. Tclium. 3. Melampsora Helioscopiae. Telium. (1 X 270; 2, 3 X 340; after Sappin- Trouffy, 1896.) four cells, each cutting off a basidiospore and raising it above the ruptured epidermis on a long sterigma. In Gallowaya pinicola (B. O. Dodge, 1925) there is very little inter- twining of hyphae as a preliminary to the formation of the telial sorus. The hyphae grow out through the mesophyll and form a palisade of chains of four or five uninucleated cells. The terminal cells form th
![. The fungi which cause plant disease . Plant diseases; Fungi. 394 THE FUNGI WHICH CAUSE PLANT DISEASE nucleus b}^ two mitoses gives rise to four nuclei which wander through the sterigmata into the spores and constitute the four basidiospore nuclei. The significance of this phenomenon of fusion in the basidium followed by division, which is wide spread and apparently the. M NO P "0 l,0^.fl N:^ ^^ f^ ff /^: m A 7 ^#) ^ 8» f Id. 283.—Stages in the development of the basidium (Agaricus); original binucleate condition, followed (E-F) by fusion, and subsequent mitosis N-R, resulting in four sp Stock Photo](https://c8.alamy.com/comp/RDE5XT/the-fungi-which-cause-plant-disease-plant-diseases-fungi-394-the-fungi-which-cause-plant-disease-nucleus-b-two-mitoses-gives-rise-to-four-nuclei-which-wander-through-the-sterigmata-into-the-spores-and-constitute-the-four-basidiospore-nuclei-the-significance-of-this-phenomenon-of-fusion-in-the-basidium-followed-by-division-which-is-wide-spread-and-apparently-the-m-no-p-quot0-l0fl-n-f-ff-m-a-7-8-f-id-283stages-in-the-development-of-the-basidium-agaricus-original-binucleate-condition-followed-e-f-by-fusion-and-subsequent-mitosis-n-r-resulting-in-four-sp-RDE5XT.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. 394 THE FUNGI WHICH CAUSE PLANT DISEASE nucleus b}^ two mitoses gives rise to four nuclei which wander through the sterigmata into the spores and constitute the four basidiospore nuclei. The significance of this phenomenon of fusion in the basidium followed by division, which is wide spread and apparently the. M NO P "0 l,0^.fl N:^ ^^ f^ ff /^: m A 7 ^#) ^ 8» f Id. 283.—Stages in the development of the basidium (Agaricus); original binucleate condition, followed (E-F) by fusion, and subsequent mitosis N-R, resulting in four sp Stock Photo")
RMRDE5XT–. The fungi which cause plant disease . Plant diseases; Fungi. 394 THE FUNGI WHICH CAUSE PLANT DISEASE nucleus b}^ two mitoses gives rise to four nuclei which wander through the sterigmata into the spores and constitute the four basidiospore nuclei. The significance of this phenomenon of fusion in the basidium followed by division, which is wide spread and apparently the. M NO P "0 l,0^.fl N:^ ^^ f^ ff /^: m A 7 ^#) ^ 8» f Id. 283.—Stages in the development of the basidium (Agaricus); original binucleate condition, followed (E-F) by fusion, and subsequent mitosis N-R, resulting in four sp
RMRE5BE6–. Cronartium comandrae in the Rocky Mountain States. Cronartium comandrae Rocky Mountains Region; Fungi Rocky Mountains Region. 6 8 10 EXPOSURE TIME Figure ll.-Survival of basidiospores after expo- sure to various temperatures and relative humidities, as indicated by subsequent basidiospore germination. occasionally in basidiospores cast from field collec- tions of older telia, but not in those cast from fresh young telia. 100. 8 13 18 23 28 TEMPERATURE (Degrees Celsius) Figure 12.-Germination of basidiospores at sev- eral temperatures after 24 hours' incu- bation. The darker lines are mean cu
RMRGBFHR–. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. Bui. 1053, U. S. Dept. of Agriculture. PLATE IV.. Basidiospore Studies of Lenzites and Trametes. (X 475.) Fig. 1.—Germinating basidiospores of Lenzites trabea on malt agar. Fig. 2.—Oidia of Lenzites trabea from secondary aerial mycelium on malt agar. Fig. 3.—Stages in formation of chlamydospores upon submerged mycelium of Lenzites trabea in malt agar. Fig. 4.—Chlamy- dospores and chlamydosporelike bodies of Lenzites trabea upon submerged mycelium in malt agar, one of them germinating. Fig. 5.—Germinating basidiospores
RMRN84R3–. Anatomie et physiologie végétales à l'usage des étudiants en sciences naturelles des universités, des élèves à l'Institut agronomique, des écoles d'agriculture, etc. Plant anatomy; Plant physiology. 1 Fik'. lo83. Fiff. 1584. Fig. 1583. — I, a, baside d'Auriculaire [Auricularia sambucina), cloisonnée transversal(3mont ; 6, slériginate et ébauclic dos spores (gr. : 250) ; c, st.é- rigmatc et spore mûre ; d, germination d'une basidiospore dans l'eau ; f, groupe de conidies ; q. conidies libres (gr. : 350). — a, baside de Tré- mcllc (Tremella lutescens), cloisonnée longitudinalenient ; b, stérig
![. The Botanical magazine. Plants; Plants -- Japan. August 1912.] s. ITO. AND K. SAW AD A.—A NEW EXO B AS ID IUM-D fSEASE 239 A section through the diseased spot shows the hyphae to be ramifying in the tissue of the leaf and the chloroplastids des- troyed. The hymenium is about 70-90?in thickness. (Fig. 2.) The basidia are cylindrical clavate in shape, and usually produce four sterigmata on the apex. The basidia measure 100-135," X 3—?"?and the sterigmata 2-3// in length. Each stenVma supports a basidiospore. (Fig. 3, 4.) The basidiospores are oblong-obovate in shape, straight or more Stock Photo](https://c8.alamy.com/comp/RHB0H4/the-botanical-magazine-plants-plants-japan-august-1912-s-ito-and-k-saw-ad-aa-new-exo-b-as-id-ium-d-fsease-239-a-section-through-the-diseased-spot-shows-the-hyphae-to-be-ramifying-in-the-tissue-of-the-leaf-and-the-chloroplastids-des-troyed-the-hymenium-is-about-70-90in-thickness-fig-2-the-basidia-are-cylindrical-clavate-in-shape-and-usually-produce-four-sterigmata-on-the-apex-the-basidia-measure-100-135quot-x-3quotand-the-sterigmata-2-3-in-length-each-stenvma-supports-a-basidiospore-fig-3-4-the-basidiospores-are-oblong-obovate-in-shape-straight-or-more-RHB0H4.jpg ". The Botanical magazine. Plants; Plants -- Japan. August 1912.] s. ITO. AND K. SAW AD A.—A NEW EXO B AS ID IUM-D fSEASE 239 A section through the diseased spot shows the hyphae to be ramifying in the tissue of the leaf and the chloroplastids des- troyed. The hymenium is about 70-90?in thickness. (Fig. 2.) The basidia are cylindrical clavate in shape, and usually produce four sterigmata on the apex. The basidia measure 100-135," X 3—?"?and the sterigmata 2-3// in length. Each stenVma supports a basidiospore. (Fig. 3, 4.) The basidiospores are oblong-obovate in shape, straight or more Stock Photo")
RMRHB0H4–. The Botanical magazine. Plants; Plants -- Japan. August 1912.] s. ITO. AND K. SAW AD A.—A NEW EXO B AS ID IUM-D fSEASE 239 A section through the diseased spot shows the hyphae to be ramifying in the tissue of the leaf and the chloroplastids des- troyed. The hymenium is about 70-90?in thickness. (Fig. 2.) The basidia are cylindrical clavate in shape, and usually produce four sterigmata on the apex. The basidia measure 100-135," X 3—?"?and the sterigmata 2-3// in length. Each stenVma supports a basidiospore. (Fig. 3, 4.) The basidiospores are oblong-obovate in shape, straight or more
![. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Bui. 1053, U. S. Dept. of Agriculture, Plate IV.. Basidiospore Studies of Lenzites and Trametes. (X 475.) Fig. 1.—Germinating basidiospores of Lenzites trabea on malt agar. Fig. 2.—Oidia of Lenzites trabea from secondary aerial mycelium on malt agar. Fig. 3.—Stages in formation of chlamydospores upon submerged mycelium of Lenzites trabea in malt agar. Fig. 4—Chlamy- dospores and chlamydosporelike bodies of Lenzites trabea upon submerged mycelium in malt agar, one of them germinating. Stock Photo](https://c8.alamy.com/comp/RG8R8C/bulletins-on-forest-pathology-from-bulletin-usda-washington-dc-1913-1925-trees-plant-diseases-bui-1053-u-s-dept-of-agriculture-plate-iv-basidiospore-studies-of-lenzites-and-trametes-x-475-fig-1germinating-basidiospores-of-lenzites-trabea-on-malt-agar-fig-2oidia-of-lenzites-trabea-from-secondary-aerial-mycelium-on-malt-agar-fig-3stages-in-formation-of-chlamydospores-upon-submerged-mycelium-of-lenzites-trabea-in-malt-agar-fig-4chlamy-dospores-and-chlamydosporelike-bodies-of-lenzites-trabea-upon-submerged-mycelium-in-malt-agar-one-of-them-germinating-RG8R8C.jpg ". [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Bui. 1053, U. S. Dept. of Agriculture, Plate IV.. Basidiospore Studies of Lenzites and Trametes. (X 475.) Fig. 1.—Germinating basidiospores of Lenzites trabea on malt agar. Fig. 2.—Oidia of Lenzites trabea from secondary aerial mycelium on malt agar. Fig. 3.—Stages in formation of chlamydospores upon submerged mycelium of Lenzites trabea in malt agar. Fig. 4—Chlamy- dospores and chlamydosporelike bodies of Lenzites trabea upon submerged mycelium in malt agar, one of them germinating. Stock Photo")
RMRG8R8C–. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Bui. 1053, U. S. Dept. of Agriculture, Plate IV.. Basidiospore Studies of Lenzites and Trametes. (X 475.) Fig. 1.—Germinating basidiospores of Lenzites trabea on malt agar. Fig. 2.—Oidia of Lenzites trabea from secondary aerial mycelium on malt agar. Fig. 3.—Stages in formation of chlamydospores upon submerged mycelium of Lenzites trabea in malt agar. Fig. 4—Chlamy- dospores and chlamydosporelike bodies of Lenzites trabea upon submerged mycelium in malt agar, one of them germinating.
RMRGMWM0–. Bulletin du Jardin botanique de Buitenzorg. Plants -- Indonesia; Plants. OÀUMANN: My/wloo/^c/ic Mi/k'ilu/iiren II. grosse Basidiospore abscliniirt, welchc wiederum ohne weiteres auch schon auf der Wirtspflaiize kcimt. Mit dieser eiiizigeii Basidiospore scheiiit gewôliiilich die Kraft der Basidie erschopft zii sein. Ausiiahmsweise kommt es vor, dass sie diircli eine Qiierwand iiocli ein unteres ^Fach abtreiiiit, welches wiederum eiiie Basidiospore bildet. Da icii dièse Keimiiiigsart sowolil auf der Wirtspflaiize seibst als aucli regelmâssig im liaiigendeii Tropfen sah, ist es iiicht ausgescli
RMRE5BBK–. Cronartium comandrae in the Rocky Mountain States. Cronartium comandrae Rocky Mountains Region; Fungi Rocky Mountains Region. Shasta urad -300 X 200 BASIDIOSPORES. 31 10 20 30 10 20 31 10 20 31 10 20 30 10 20 JUNE JULY AUGUST SEPTEMBER Figure 23.-Prevalence of C. comandrae fruiting structures and corresponding viability in Fish Haven plot 1964. In bottom graph, curves are shown for germination by for- mation of a germ tube (primary) or by production of another basidiospore (secondary).. Please note that these images are extracted from scanned page images that may have been digitally enhanced
RMRGBFJ9–. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. Bui. 1053, U. S. Dept. of Agriculture. Plate III.. Basidiospore Studies of Lenzites sepiaria. </ 475, except La, which is X 67.) Pig. i. Germinating basldiospores on malt agar. Fig. La. -Extent of the growth which may take place before branching begins. Fig.2. Germinating basidiospores in distilled water. Fig.if. Oidia upon ubmerged mycelium in agar. Fig. 4, Septate oidium. Figs. 5, 6, and 7. Aerl i mycelium almost completely broken up to oidal chains. Fni.x. Coil In aerial mycelium ol older cultures. Fig.9. .Germin
RMRGBFH8–. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. Bui. 1053, U. S. Dept. of Agriculture. Plate V.. Basidiospore Studies of Fomes and Lentinus. I 475.) Ii'..i- Germ > idiosporc of Fonicx nixcax on mull, agar. Kio.2. Germinating basidio- pori ol Lenlinu lepideusoa mail. agar. Fro. 3. Anastomosing of hyphaa. one from clamp, i,i Lentint lepideu . Fro. I Chlamydospore from aerial tertiary mycelium oi Lentinus 11 j,nil won mail agar. Fro. 5. Chlamydo ipore of Lentinuslepidi »,â '; on submerged mycelium, in mail agar. Pro.6. Mature and Immature chlamydosporea from colore
![. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Bui. 1053, U. S. Dept. of Agriculture Plate V.. Basidiospore Studies of Fomes and Lentinus. (X 475.) Fig. 1.—Germinating basidiospores of Fomesroseus on malt agar. Fig. 2.—Germinating basidio- spores of Lentinus lepideus on malt agar. Fig. 3.—Anastomosing of hyphte, one from clamp, of Lentinus lepideus. Fig. 4.—Chlamydospore from aerial tertiary mycelium of Lentinus lepideus on malt agar. Fig. 5.—Chlamydospores of Lentinus lepideus on submerged mycelium, in malt agar. Fig. 6.—Mature Stock Photo](https://c8.alamy.com/comp/RG8R82/bulletins-on-forest-pathology-from-bulletin-usda-washington-dc-1913-1925-trees-plant-diseases-bui-1053-u-s-dept-of-agriculture-plate-v-basidiospore-studies-of-fomes-and-lentinus-x-475-fig-1germinating-basidiospores-of-fomesroseus-on-malt-agar-fig-2germinating-basidio-spores-of-lentinus-lepideus-on-malt-agar-fig-3anastomosing-of-hyphte-one-from-clamp-of-lentinus-lepideus-fig-4chlamydospore-from-aerial-tertiary-mycelium-of-lentinus-lepideus-on-malt-agar-fig-5chlamydospores-of-lentinus-lepideus-on-submerged-mycelium-in-malt-agar-fig-6mature-RG8R82.jpg ". [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Bui. 1053, U. S. Dept. of Agriculture Plate V.. Basidiospore Studies of Fomes and Lentinus. (X 475.) Fig. 1.—Germinating basidiospores of Fomesroseus on malt agar. Fig. 2.—Germinating basidio- spores of Lentinus lepideus on malt agar. Fig. 3.—Anastomosing of hyphte, one from clamp, of Lentinus lepideus. Fig. 4.—Chlamydospore from aerial tertiary mycelium of Lentinus lepideus on malt agar. Fig. 5.—Chlamydospores of Lentinus lepideus on submerged mycelium, in malt agar. Fig. 6.—Mature Stock Photo")
RMRG8R82–. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Bui. 1053, U. S. Dept. of Agriculture Plate V.. Basidiospore Studies of Fomes and Lentinus. (X 475.) Fig. 1.—Germinating basidiospores of Fomesroseus on malt agar. Fig. 2.—Germinating basidio- spores of Lentinus lepideus on malt agar. Fig. 3.—Anastomosing of hyphte, one from clamp, of Lentinus lepideus. Fig. 4.—Chlamydospore from aerial tertiary mycelium of Lentinus lepideus on malt agar. Fig. 5.—Chlamydospores of Lentinus lepideus on submerged mycelium, in malt agar. Fig. 6.—Mature
RMRECEXH–. Comptes rendus hebdomadaires des séances de l'Académie des sciences. Science -- Societies, etc; Science; Science. SÉANCE DU l6 JUILLET I912. 227 La basidiospore germe en donnant un mycélium blanc, formé de filaments cylin- driques, d'une largeur de ^1^, régulièrement cloisonnés et ramifiés, s'agrégeant de bonne heure en cordons de plus en plus volumineux. Le mycélium vieilli et superficiel présente une teinte roux clair assez spéciale. La multiplication du mycélium s'effectue facilement sur les milieux nutritifs les. Please note that these images are extracted from scanned page images that m
![. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Bui. 1053, U. S. Dept. of Agriculture. Plate III.. Basidiospore Studies of Lenzites sepiaria. (X 475, except la, which is X 67.) Fig. 1.—Germinating basidiospores on malt agar. Fig. la—Extent of the growth which may- take place before branching begins. Fig. 2.—Germinating basidiospores in distilled water. Fig. 3.—Oidia upon submerged mycelium in agar. Fig. 4.—Septate oidium. Figs. 5, 6, and 7.—Aerial mycelium almost completely broken up to oidal chains. Fig. 8.—Coil in aerial myceliu Stock Photo](https://c8.alamy.com/comp/RG8R95/bulletins-on-forest-pathology-from-bulletin-usda-washington-dc-1913-1925-trees-plant-diseases-bui-1053-u-s-dept-of-agriculture-plate-iii-basidiospore-studies-of-lenzites-sepiaria-x-475-except-la-which-is-x-67-fig-1germinating-basidiospores-on-malt-agar-fig-laextent-of-the-growth-which-may-take-place-before-branching-begins-fig-2germinating-basidiospores-in-distilled-water-fig-3oidia-upon-submerged-mycelium-in-agar-fig-4septate-oidium-figs-5-6-and-7aerial-mycelium-almost-completely-broken-up-to-oidal-chains-fig-8coil-in-aerial-myceliu-RG8R95.jpg ". [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Bui. 1053, U. S. Dept. of Agriculture. Plate III.. Basidiospore Studies of Lenzites sepiaria. (X 475, except la, which is X 67.) Fig. 1.—Germinating basidiospores on malt agar. Fig. la—Extent of the growth which may- take place before branching begins. Fig. 2.—Germinating basidiospores in distilled water. Fig. 3.—Oidia upon submerged mycelium in agar. Fig. 4.—Septate oidium. Figs. 5, 6, and 7.—Aerial mycelium almost completely broken up to oidal chains. Fig. 8.—Coil in aerial myceliu Stock Photo")
RMRG8R95–. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Bui. 1053, U. S. Dept. of Agriculture. Plate III.. Basidiospore Studies of Lenzites sepiaria. (X 475, except la, which is X 67.) Fig. 1.—Germinating basidiospores on malt agar. Fig. la—Extent of the growth which may- take place before branching begins. Fig. 2.—Germinating basidiospores in distilled water. Fig. 3.—Oidia upon submerged mycelium in agar. Fig. 4.—Septate oidium. Figs. 5, 6, and 7.—Aerial mycelium almost completely broken up to oidal chains. Fig. 8.—Coil in aerial myceliu
Search Results for Basidiospore Stock Photos and Images (105)
Page 1 of 2