. Elementary botany. Botany. 138 MORPHOLOG Y. 302. The sac fungi or ascomycetes.—The large group of fungi to which this uncinula belongs is known as the sac fungi, or ascomycetes. While. Fig. 165. FiS- l66- Fig. 167. Willow mildew; bit Fruit of will<?w mildew, showing hooked ap- Fruit bod of an_ of mycelium with pendages. Genus uncinula. other mildew with erect conidiophores, Figs. 166, 167.—Perithecia (perithecium) of dichotomous appen- bearing chain of two powdery mildews, showing escape of asci dages. Genus gonidia; gonidium at containing the spores from the crushed fruit microspha^ra. l
. Elementary botany. Botany. 138 MORPHOLOG Y. 302. The sac fungi or ascomycetes.—The large group of fungi to which this uncinula belongs is known as the sac fungi, or ascomycetes. While. Fig. 165. FiS- l66- Fig. 167. Willow mildew; bit Fruit of will<?w mildew, showing hooked ap- Fruit bod of an_ of mycelium with pendages. Genus uncinula. other mildew with erect conidiophores, Figs. 166, 167.—Perithecia (perithecium) of dichotomous appen- bearing chain of two powdery mildews, showing escape of asci dages. Genus gonidia; gonidium at containing the spores from the crushed fruit microspha^ra. left germinating. bodies. many of the powdery mildews have a variable number of spores in an ascus, a large majority of the ascomycetes have just 8 spores in an ascus, while Fig. 169. Disappear- ance of contact walls of anthe- ridium and carpogonium, and fusion of the two 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 Atkinson, George Francis, 1854-1918. New York, H. Holt
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