. The fungi which cause plant disease . Plant diseases; Fungi. 438 THE FUNGI WHICH CAUSE PLANT DISEASE ferruginous to grayish-umbrinous, glistening when young, rather thin, entire; spores subglobose, smooth, hyaline at maturity, becoming brownish with age, 5-6 x 3^ ti; spines abundant, short, 25-35 X 4-6 M- It occurs on pine, spruce, larch, hemlock, and fir as a wound parasite of the heart wood; it is also on willow in Europe and America. The spores are wind-borne and, lodging on improtected sur- faces, develop a mycelium which grows both up and down, spread- ing most rapidly in a longitudinal
. The fungi which cause plant disease . Plant diseases; Fungi. 438 THE FUNGI WHICH CAUSE PLANT DISEASE ferruginous to grayish-umbrinous, glistening when young, rather thin, entire; spores subglobose, smooth, hyaline at maturity, becoming brownish with age, 5-6 x 3^ ti; spines abundant, short, 25-35 X 4-6 M- It occurs on pine, spruce, larch, hemlock, and fir as a wound parasite of the heart wood; it is also on willow in Europe and America. The spores are wind-borne and, lodging on improtected sur- faces, develop a mycelium which grows both up and down, spread- ing most rapidly in a longitudinal direction, or horizontally follow- ing an annual ring. The fungous enzyme first dissolves the lignin leaving the individual tracheids free and of nearly pure cellulose. The cellulose is later dissolved, resulting in holes in the wood. It is found on most of the conifers of the United States as a sapro- phyte. The wood becomes white-spotted. In late stages of decay the entire wood is full of small holes which are lined with a white fungous felt. T. ribinophila Murr. is perhaps a parasite on the black locust. T. theae Zimm. cause a root- rot of tea in India.'' T. suaveolens (L.) Fr. Pileus large, subimbricate, dimidiate, sessile, convex above, plane or concave below, 4-6 x 5-12 x 1-3 cm.; surface smooth, anoderm, azonate, finely villose- tomentose to nearly glabrous, white to pale-isabelline; margin thick, sterile, entire: context white, punky-corky, 1-2 cm. thick, very fragrant when fresh. Fig. 311âFavolus europaeua. with the odor of anise; tubes 5- °^ â 15 mm. long, white within, mouths circular, 2 to a mm., edges at first very thick, white, entire, becoming thinner and often blackish with age: spores oblong-ovoid, subsinuate, smooth, hyaline, 8-9 x 3-5 m; hyphae 7 m; cystidia none. On 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 no
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913
