. Comparative morphology of Fungi. Fungi. TREMELLALES 525 conidia are produced (Fig. 344, 2). In Tremella, the conidia are spherical, and may sprout in nutrient solution (Fig. 345,3 to 7). In Tremella lutescens they are found in Nature on young, still felt-like fructifications where they are cut off in large numbers on branched conidiophores (Brefeld, 1888). In T. mesenterica they are replaced by uni- or binucleate oidia which result from the breaking up of the terminal portions of hyphae (Fig. 345, 1 and 2) and multiply by sprouting (Dangeard, 1895). With the appearance of basidia and the inc
. Comparative morphology of Fungi. Fungi. TREMELLALES 525 conidia are produced (Fig. 344, 2). In Tremella, the conidia are spherical, and may sprout in nutrient solution (Fig. 345,3 to 7). In Tremella lutescens they are found in Nature on young, still felt-like fructifications where they are cut off in large numbers on branched conidiophores (Brefeld, 1888). In T. mesenterica they are replaced by uni- or binucleate oidia which result from the breaking up of the terminal portions of hyphae (Fig. 345, 1 and 2) and multiply by sprouting (Dangeard, 1895). With the appearance of basidia and the increase of gel secretion, conidial formation decreases and their remains are imbedded in the gel. A similar succession was reported. Fig. 346.—Protomerulius brasiliensis. Habit. (Natural size; after Moiler, 1895.) for Ditangium. A young fructification, which appears in the fall, consists of a swollen hyphal felt whose mature top has crateriform open- ings, covered by stratose, branched conidiophores (Fig. 344, 8). The conidia resemble the basidiospores but are only half as large. During the winter, the hyphal membranes swell, the fructification gelifies and basidia appear. The basidiospores germinate without division either by conidia or germ tubes. As far as known, the secondary spores formed on the mycelium are uninucleate, those on the fructifications binucle- ate (Neuhoff, 1924); hence the former are haploconidia, the latter 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 Gäumann, Ernst Albert, 1893-1963; Dodge, Carroll William, 1895-. New York [etc. ] McGraw-Hill Book Company, Inc.
Size: 1864px × 1341px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublishern, booksubjectfungi
