. The fungi which cause plant disease . Plant diseases; Fungi. 454 THE FUNGI WHICH CAUSE PLANT DISEASE Pluteus Fries (p. 450) Pileus fleshy, regular; separating easily from the stipe; gills free; volva and annul us both absent; spores elliptic. P. cervinus Scha. Fig. 323. Cap large, 5-16 cm. wide, usually some shade of browTi, from grayish or yellowish to blackish-brown, more or less fibrous or hairy on the disk, some- times sticky, convex or plane; stem 7- 15 cm. by }^-l cm., brownish, smooth or black-hairy, solid; gills free, pink, broad; spores pink, rarely greenish, globoid, 7-8 X 5-6 n. A
. The fungi which cause plant disease . Plant diseases; Fungi. 454 THE FUNGI WHICH CAUSE PLANT DISEASE Pluteus Fries (p. 450) Pileus fleshy, regular; separating easily from the stipe; gills free; volva and annul us both absent; spores elliptic. P. cervinus Scha. Fig. 323. Cap large, 5-16 cm. wide, usually some shade of browTi, from grayish or yellowish to blackish-brown, more or less fibrous or hairy on the disk, some- times sticky, convex or plane; stem 7- 15 cm. by }^-l cm., brownish, smooth or black-hairy, solid; gills free, pink, broad; spores pink, rarely greenish, globoid, 7-8 X 5-6 n. A common saprophyte which is oc- casionally parasitic. Pleurotus .Fries (p. 450) Pileus laterally sessile, or excentrically stipitate. Fig. 324. A genus of about two hundred fifty species. P. ostreatus Jacq. Cap large, 7-24 cm. wide, white, gray or tan, smooth or more or less scaly in age, convex or plane, shelf or shell- shaped, more or less lobed and torn at the margin; stem short and lateral, or none, white, solid, more or less hairy at base; gills long-decurrent, connected by veins on the stem, white or yellowish; spores elliptic, 8-10 x 4-5 /jl. Common on deciduous trees, mainly saprophytic. P. salignus Schrad. is often parasitic on willow, poplar, mul- berry, etc. P. ulmarius Bui. Cap large, 8-15 cm. wide, white, whitish or tan, often brownish toward the center, smooth, often cracked, usually convex, some- times plane; stem long and stout, often nearly central, 5-12 cm. by 2-3 cm., white or tan, smooth or hairy toward the base, solid,. I'lG. 322.—Volvaria bomby- ciua. After 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
