. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 185 to similarity of habit and the frequent abnormal development of the appendages, so that the published references are not always reliable. Microsphsera L6viell6 (p. 175) Perithecia globose to subglobose; asci several, 2 to 8-spored-, appendages not interwoven with the mycelium, branched in a definite manner at the apex, usually dichotomously and often very ornately, rarely undivided or merely once dichotomous. According to Salmon there are thirteen species; Engler and Prantl' recognize thirty.
. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 185 to similarity of habit and the frequent abnormal development of the appendages, so that the published references are not always reliable. Microsphsera L6viell6 (p. 175) Perithecia globose to subglobose; asci several, 2 to 8-spored-, appendages not interwoven with the mycelium, branched in a definite manner at the apex, usually dichotomously and often very ornately, rarely undivided or merely once dichotomous. According to Salmon there are thirteen species; Engler and Prantl' recognize thirty. M. grossiilarise (Wal.) L6v. Epiphyllous or amphigenous; mycelium evanescent or sub- persistent; perithecia scattered or densely aggregated, globose- depressed, 65-130 n; cells 14-20 n; appendages 5-22, colorless, 1-1M times the diameter of the perithe- cium, 4 to 6-times closely dichoto- mously branched, branches of first and second order very short, all pjo. grossuiarise, append- segments deeply divided, tips not age tips. After Salmon. recurved; asci 4-10, broadly ovate or oblong, usually with a very short stalk, 46-62 x 28-38 n; spores 4-6, rarely 3, 20-28 x 12-16 fi. On five species of Bibes and two of Sambucus. This is the common European gooseberry-mildew, which is not common in America except on the elder. M. berberidis (D. C.) L6v. occurs on the barberry in Europe and Asia. M. alni (Wal.) Salm. Amphigenous; mycelium evanescent or persistent; perithecia scattered to gregarious, globose-depressed, very variable in size, usually small, 66-110 n, or even up to 135 m; cells 10-15 n wide; appendages variable in number (4-26) and length, Vs to 2}4 times the diameter of the perithecium, more or less rigid, colorless throughout or amber-brown at base, apex variously. 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
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913
