. Laboratory work in bacteriology. Bacteriology. Fig. 56. Fruit-organs of moulds, after Lehmann. A.—Sporangium of mucor, hlled witii spores, showing columella; B—Aspergillus with sterigmae and spores; C—Penicillium with basidia and spores. The mucors also give rise to zygospores which result by the union of the ends of two mycelial threads. The mycelial thread up to the fruiting stage is unseptate, and represents, therefore, a continuous tube. When grown in liquids the thread character gives place to yeast-like cells. 3 or 4 species of this group are capable of inducing experimental pathogenic
. Laboratory work in bacteriology. Bacteriology. Fig. 56. Fruit-organs of moulds, after Lehmann. A.—Sporangium of mucor, hlled witii spores, showing columella; B—Aspergillus with sterigmae and spores; C—Penicillium with basidia and spores. The mucors also give rise to zygospores which result by the union of the ends of two mycelial threads. The mycelial thread up to the fruiting stage is unseptate, and represents, therefore, a continuous tube. When grown in liquids the thread character gives place to yeast-like cells. 3 or 4 species of this group are capable of inducing experimental pathogenic effects. In very rare instances mucor mycoses have been met with in man. The aspergillus group has no sporangia but, instead, the ends of the fruit-hyphee are enlarged or club-shaped, the enlarged end, or columella, is covered with radially ar- ranged, minute bottle-shaped bodies—the. intermediate spore bearers or sterigmce—from which chains or rows of spores extend outward. Additional fruit organs, perithecia. 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 Novy, Frederick George, 1864- . Ann Arbor [Mich. ] G. Wahr
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