. Plants and their uses; an introduction to botany. Botany; Botany, Economic. V. >x^^ . 328.—Powdery-mildew (Erysibe comrnunis, Powdery-mildew Famib\ Erysihacetv). The surface of a leaf upon which the fungus is parasitic, its horizontal hj'phce spreading over the surface and attaching itself by sucking organs; and giving rise also to vertical hyphce producing dust-spores (c), and to fruiting bodies such as a, which contain sac- sporc-cases such as e. The fruiting bodies h and d and the h>'pliie from which they arise belong to another fungus {(Jincinnoholus) which is parasitic upon the mi
. Plants and their uses; an introduction to botany. Botany; Botany, Economic. V. >x^^ . 328.—Powdery-mildew (Erysibe comrnunis, Powdery-mildew Famib\ Erysihacetv). The surface of a leaf upon which the fungus is parasitic, its horizontal hj'phce spreading over the surface and attaching itself by sucking organs; and giving rise also to vertical hyphce producing dust-spores (c), and to fruiting bodies such as a, which contain sac- sporc-cases such as e. The fruiting bodies h and d and the h>'pliie from which they arise belong to another fungus {(Jincinnoholus) which is parasitic upon the mildew. Magnified about 450 diameters. (Tu- lasne.)—Powdery-mildews are all too common parasites upon the foliage of llowermg plants both cultivated and Fig. 329.—Powdery-mildew. Horizontal hyidue (a) from which arise "male" {b) and "femalr" (c) gametangia; the latter piodvicing sac- spore-cascs enclosed within a ijrotective fruit-body id, <). (Warming.). 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 Sargent, Frederick Leroy, 1863-. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
