. The fungi which cause plant disease . Plant diseases; Fungi. 228 THE FUNGI WHICH CAUSE PLANT DISEASE Trichosphaeria Fuckel (p. 226) Perithecia usually free, globose, woody or carbonous, hairy, ostiole flat or papillate; asci-cylindric, 8-spored; spores 1 to 2-celled, hyaline; paraphyses present. There are some forty species, mainly saprophytes. T. sacchari Mass.^"- ^^ Perithecia broadly ovate, dark-brown, beset with brown hairs; spores elongate-ellipsoid, 1-celled; the conidial forms are various. Fig. 162.—^Trichosphseria. E, habit sketch; G, conidial stage. After Lindau, Winter and Bre
. The fungi which cause plant disease . Plant diseases; Fungi. 228 THE FUNGI WHICH CAUSE PLANT DISEASE Trichosphaeria Fuckel (p. 226) Perithecia usually free, globose, woody or carbonous, hairy, ostiole flat or papillate; asci-cylindric, 8-spored; spores 1 to 2-celled, hyaline; paraphyses present. There are some forty species, mainly saprophytes. T. sacchari Mass.^"- ^^ Perithecia broadly ovate, dark-brown, beset with brown hairs; spores elongate-ellipsoid, 1-celled; the conidial forms are various. Fig. 162.—^Trichosphseria. E, habit sketch; G, conidial stage. After Lindau, Winter and Brefeld. and their genetic connection is by no means certain. (1) (=Conio- thyrium megalospora) Pycnidia 1-3, on a dark-colored, parenchy- matous stroma; conidia elongate, straight or curved, brownish, 12 X 5 Ai, (2) The macroconidia (=Thielaviopsis ethaceticus) see p. 596, are often found forming intensely black, velvety layers lining cracks and cavities in diseased canes. (3) Micro- conidia produced on the surface in Oidium-like chains. Their connection with this fimgus is disputed and uncertain.*^ It is a sugar cane 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
