. Plants and their uses; an introduction to botany . placed provisionally in a class bythemselves composed of unicellular forms, which reproduceonly by budding and the formation of spores by internal cell-division. 180. The pin-mold fungi (Class Zygomycetes). Variousferrnentations or putrefactions affecting bread, preservesor other food, are often due to so-called pin-molds likethe Mucor shown in Figs. 324, 325, 326. A spore falling ^ Holo-phyte < Gr. holos, whole; phyton, Hyster-o-phyte < Gr. hysteros, coming after. 496 LIFE-HISTORIES upon the surface of some nutrient medium ger
. Plants and their uses; an introduction to botany . placed provisionally in a class bythemselves composed of unicellular forms, which reproduceonly by budding and the formation of spores by internal cell-division. 180. The pin-mold fungi (Class Zygomycetes). Variousferrnentations or putrefactions affecting bread, preservesor other food, are often due to so-called pin-molds likethe Mucor shown in Figs. 324, 325, 326. A spore falling ^ Holo-phyte < Gr. holos, whole; phyton, Hyster-o-phyte < Gr. hysteros, coming after. 496 LIFE-HISTORIES upon the surface of some nutrient medium germinates bysending out one or more projections (Figs. 325, 3), and thesefinding abundant food avaihible elongate and branch indef-. FiG. 324.—Pin-mold {Mucor Mucedo, Piii-niold Family, Mucoracea).Plant showing the nuich-hranchcd horizontal mycelium from whicharise pin-like vertical hypha; {a, b, c, of different ages) that eventuallydevelop dust-spore-cases at the tip. Somewhat magnified. (Zopf.)
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
