. British fungi (hymenomycetes). Basidiomycetes; Fungi -- Great Britain. COPRINARII. 343. XXXVI. Agaricus (Psathyrella) disseminatus. One-half natural size. not variegated, and not becoming fuscous or purple. In appear- Psathyrella. ance wholly like Psathyra. Spores black on a white ground, but in one or two species slightly fuscous when deposited on a black ground. Fr. Hym. Eur. p. 313. The straight margin of the pileus is adpressed to the stem. Thinner than Psathyra. * Stem tense and straight, smooth. * Stemflexuozts, pruinate at the apex. * Stem tense and straight, smooth. 772. A. subatratu
. British fungi (hymenomycetes). Basidiomycetes; Fungi -- Great Britain. COPRINARII. 343. XXXVI. Agaricus (Psathyrella) disseminatus. One-half natural size. not variegated, and not becoming fuscous or purple. In appear- Psathyrella. ance wholly like Psathyra. Spores black on a white ground, but in one or two species slightly fuscous when deposited on a black ground. Fr. Hym. Eur. p. 313. The straight margin of the pileus is adpressed to the stem. Thinner than Psathyra. * Stem tense and straight, smooth. * Stemflexuozts, pruinate at the apex. * Stem tense and straight, smooth. 772. A. subatratus Fr. — Pileus cent, (i in.) high, and when ex- panded 5 cent. (2 in.) broad, umber- rufescent, pallid-rufescent when dry, membranaceous, campanulate, ob- tuse, smooth, even, slightly striate round the margin. Stem cent. (4-5 in.) long, 2 mm. (i lin.) and more thick, fistulose, tense and straight, equal, even, smooth, not pruinate, becoming pale- white. Gills adnexed in the top of the cone, aclnate \vhen the pileus is more expanded, linear, scarcely beyond 2 mm. (i lin.) broad, crowded, fuliginous-blackish, almost umber, edge of the same colour. Spores shining black. Gregarious, fragile. The above is the typical form. In an intermediate form the stem is shorter, cent. (2-3 in.); in a smaller form the stem is only cent, (i in.), the pileus somewhat umbonate, fuligin- ous when moist, somewhat olivaceous, the gills ventricose, 4 mm. (2 lin.) broad. On rich ground. Batheaston, 1869. Sept. Spores pruniform, 12-15 mk. Q. Name—sub, and ater, dead black. Black- ish. Fr. Monogr. \\. p. 305. Hym. Eur. p. 313. B. & Br. n. 1260. 773. A. gracilis Fr.—Pileus i cent. ()4-i in.) broad, fulig- inous, livid, £c., when dry tan, rosy or whitish, hygrophanous, membranaceous, campanulate, obtuse, smooth, even, slightly and pellucidly-striate only round the margin. Stem cent. (3 in.) and more long, scarcely 2 mm. (i lin.) thick, fistulose, remarkably tense and
Size: 1392px × 1795px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookp, booksubjectbasidiomycetes
