. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 499 C. cerei, Poll, is on Cereus; C. citri Maynag. on oranges; C. damnosa Pet. on pine; all in Italy. C. persicae Schw. is reported on young peach branches. Cytospora Ehrenberg (p. 483) Stroma superficial or erumpent, tubercular, with irregular chambers; conidia elongate allantoid. Ascigerous forms belonging to Valsa are known. Some two hundred species, chiefly saprophytes. C. palmarum Cke. is on palms. C. ceratophora Sacc. is the suspected cause of a blight of Japanese chestnuts.^* C. acerina Ad


. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 499 C. cerei, Poll, is on Cereus; C. citri Maynag. on oranges; C. damnosa Pet. on pine; all in Italy. C. persicae Schw. is reported on young peach branches. Cytospora Ehrenberg (p. 483) Stroma superficial or erumpent, tubercular, with irregular chambers; conidia elongate allantoid. Ascigerous forms belonging to Valsa are known. Some two hundred species, chiefly saprophytes. C. palmarum Cke. is on palms. C. ceratophora Sacc. is the suspected cause of a blight of Japanese chestnuts.^* C. acerina Aderh. causes disease of Acer in Europe.'" C. sacchari Butler is found on sugar cane in Bengal. Dothiorellina Bubak with the one species D. tankofi^ Bub. has recently been described as the cause of disease of the mulberry.'". Fig. 344.—Cytospora. Sec- tion through a stroma. After Chester. Dothiorella Saccardo (p. 483) Pycnidia erumpent, on a stroma, leathery, ostiole papillate or not; conidia'ovate or elongate. Some seventy species, chiefly saprophytes. D. ribis (Fcl.) Sacc, on a wide range of hosts=Diaporthe stru- mella. See p. 279. Jir^m^^ Fig. 345.—D. mori. N, section of stroma, 0, conidio- phores and conidia. After Allescher. D. mori Berl. and D. populi Sacc. are perhaps parasitic on Morus and Populus respectively. An unidentified species is reported by Duggar on currant as the cause of cane blight. Inocxilations using the conidia have produced the disease. See also p. 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