. The fungi which cause plant disease . Plant diseases; Fungi. 620 THE FUNGI WHICH CAUSE PLANT DISEASE. Fia. 418.—Macro- sporium cucumer- iuum on cante- loupe. After Chester. mm. in diameter; conidiophores fasciculate or solitary, subgeniculate, 1 to 3-septate, 35-50 x 5-6 m; conidia clavate, slender-stipitate, 3 to 8-septate, somewhat constricted, submuriform, 30-75 X 15-25 n; pedicel 25-35 /i long. On leaves, stems and fruits of cantaloupes. M. cladosporioides Desm. is on beet, lettuce, onion and many other hosts. M. verrucosum occurs on cacao; M. gramineum Cke.'^* on sugar cane. M. u
. The fungi which cause plant disease . Plant diseases; Fungi. 620 THE FUNGI WHICH CAUSE PLANT DISEASE. Fia. 418.—Macro- sporium cucumer- iuum on cante- loupe. After Chester. mm. in diameter; conidiophores fasciculate or solitary, subgeniculate, 1 to 3-septate, 35-50 x 5-6 m; conidia clavate, slender-stipitate, 3 to 8-septate, somewhat constricted, submuriform, 30-75 X 15-25 n; pedicel 25-35 /i long. On leaves, stems and fruits of cantaloupes. M. cladosporioides Desm. is on beet, lettuce, onion and many other hosts. M. verrucosum occurs on cacao; M. gramineum Cke.'^* on sugar cane. M. uvarum Thum. is reported on Vitis; M. violae Poll, on violets in Italy; M. saponaris Pk. on Saponaria. M. macalpinianum S. &. Sy. is injurious to Pelargonium. Mystrosporium Corda (p. 616) Conidiophores simple or sparingly branched, short, septate, fuscous, rigid; conidia elliptic, subglobose or oblong, pluriseptate, muriform, dark, usually solitary, acrogenous. Some twenty species. M. abrodens Nebr. is described as the cause of a very serious grain disease in France. M. aductum Mas. injures Iris bulbs; M. allionun Berk, forms dark spots on onion. Septosporium Cda. (p. 616) Conidiophores short, intermixed with longer sterile hyphae; conidia ovoid to pyriform, fuscous. A small genus. S. heterosporium E. & G. Spots scattered, confluent or not, rusty brown, cm. in diameter, conidiophores hypophyllous, fasciculate from the sto- mata; conidia variable, oblong cylindric, constricted at the septa, 20-40 x 5-7 n, separating into gemmse. Reported in 1888 ^* on the wild grape in 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
