. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 99 or obovoid, 15-20 x 21-28 n, light-violet; oospores small, 25-30 /z, epispore yellowish-brown, with low, broad reticulations, areolae about 8 Ai; oogonium thin, fugaceous, 32-40 /x. This fungus on Vicia and related genera is sometimes quite A. Fig. 68.—A sporangium with a columella (Mucor). After Sachs. serious, particularly on vetch and peas in Europe, Asia and America. P. violae de Bary; on cultivated violets and the pansy in Europe and America,^' forming discolored spots; foliicolous or cau


. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 99 or obovoid, 15-20 x 21-28 n, light-violet; oospores small, 25-30 /z, epispore yellowish-brown, with low, broad reticulations, areolae about 8 Ai; oogonium thin, fugaceous, 32-40 /x. This fungus on Vicia and related genera is sometimes quite A. Fig. 68.—A sporangium with a columella (Mucor). After Sachs. serious, particularly on vetch and peas in Europe, Asia and America. P. violae de Bary; on cultivated violets and the pansy in Europe and America,^' forming discolored spots; foliicolous or caulicolous, with a pale violet growth, conidiophores fasciculate, short, 2-7 times dichotomously branched; ultimate branchlets short, sub- ulate, reflexed; conidia elliptic, short, apiculate, 20-22 x 15-18 y,, 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 Stevens, Frank Lincoln, 1871-1934. New York : Macmillan


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913