. Fundamentals of botany. Botany. LIFE HISTORIES OF FUNGI 265 ago, when it was discovered that there are, in reality, two unlike strains of Rhizopus-mycelium, and therefore two kinds of spores. The two kinds of mycelia are designated. Fig. 191.—Petri-dish culture showing dark line of zygospores between the (+) and ( —) strains of a dioecious species of mold, Choanephora {Mc) and white lines of "imperfect hybridization" between the strains of this species and the opposite strains of Mucor V (Mv). Note the total absence of zygospore formation between two (+) or two (—) strains. (After
. Fundamentals of botany. Botany. LIFE HISTORIES OF FUNGI 265 ago, when it was discovered that there are, in reality, two unlike strains of Rhizopus-mycelium, and therefore two kinds of spores. The two kinds of mycelia are designated. Fig. 191.—Petri-dish culture showing dark line of zygospores between the (+) and ( —) strains of a dioecious species of mold, Choanephora {Mc) and white lines of "imperfect hybridization" between the strains of this species and the opposite strains of Mucor V (Mv). Note the total absence of zygospore formation between two (+) or two (—) strains. (After Blakeslee.) as (+) and (—). When the intermingling hyphas are of like strains, either all (+) or all (—), conjugation fails completely, but when they are from unlike strains, zygo- spores form in great abundance. This fact is strikingly. 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 Gager, C. Stuart (Charles Stuart), 1872-1943. Philadelphia, P. Blakiston's son & co.
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Keywords: ., bookauthorgag, bookcentury1900, bookdecade1910, booksubjectbotany
