. The fungi which cause plant disease . Plant diseases; Fungi. 268 THE FUNGI WHICH CAUSE PLANT DISEASE our knowledge, it may be best to regard the various forms we have studied as varieties of one ; Among the hosts of G. rufomaculans may probably be num- bered at least apple, grape, pear, quince, peach, tomato, egg- plant, pepper, sweet pea "^^ and ;' G. rufomaculans var. cyclaminis P. & C.^^' Perithecia densely gregarious, indefinite, hght-colored, around spots, brown, membranous, subglobose or distinctly ros- trate, ostiolate; asci clavate- cylindric, apex
. The fungi which cause plant disease . Plant diseases; Fungi. 268 THE FUNGI WHICH CAUSE PLANT DISEASE our knowledge, it may be best to regard the various forms we have studied as varieties of one ; Among the hosts of G. rufomaculans may probably be num- bered at least apple, grape, pear, quince, peach, tomato, egg- plant, pepper, sweet pea "^^ and ;' G. rufomaculans var. cyclaminis P. & C.^^' Perithecia densely gregarious, indefinite, hght-colored, around spots, brown, membranous, subglobose or distinctly ros- trate, ostiolate; asci clavate- cylindric, apex pointed, SO- BS X 8-9 /i; spores oblong to elhptic, 16-18 x fx. Conidia (=Collctotri- chum); acervuli amphi- genous, brownish, large; conidia oblong to linear, obovate, straight, or slightly curved, ends round, 12-15 x 4-5 fi; conidiophores long, slender; setae free, short, rigid. This variety is reported on greenhouse Cyclamens, causing leaf spotting. Ma- ture perithecia were found on the leaves. Cultures from the ascospores gave a Colletotrichum as the co- nidial form and a similar Colletotrichum collected from the leaves in pure culture gave the Glomerella. G. cingulata (Atk.) S. & S. Perithecia cespitose, stromate, dark-brown, flask-shaped, mem- branous, 250-320 X 150 /x, shortly rostrate, more or less hairy; asci clavate, 64-16 fi; spores hyaline, eUiptic, slightly curved, 20-28 X 5-7 M- ConicUa ( = Glceosporium cingulatum); acervuU 100-150 fi, rupturing the epidermis, in age black; conidiophores numerous,. Flu. 197.—G. rufomaculans. Pustules on apple, enlarged. After Spaulding and von Schrenk. '. 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
