MARASMIUS. 141 



rivulose when dry, smooth, the thin margin involute. Stem 5-7.5 Marasmius. 

 cent. (2-3 in.) long, 6 mm. (3 lin.) thick, solid, composed of crisp 

 tough fibres, rigid, equal, sometimes however ventricose, 12 mm. 

 {% in.) thick, everywhere clothed with white Jlocci, pale, white- 

 villous at the base. Gills free, united behind, at length remote horn 

 the stem, distant, tough, at first pale-wood colour, then brown. 



Gregarious, somewhat caespitose. Taste very stinging. The stem is not 

 strigosely sheathed at the base. 



In mixed woods. Frequent. June-Sept. 



A curious form has occurred with the pileus turning very dark when full 

 grown. B. & Br. Poisonous. Worthington Smith has tested it by accident. 

 It produced headache, swimming of brain, burning in throat and stomach, 

 followed by severe purging and vomiting. Spores 3x4 mk. W.G.S. Name — 

 uro, to burn. From its bur?iing taste. Fr. Monogr. \\.p. 216. Hym. Eur. 

 p. 465. Berk. Out. p. 218. t. 14./ 3. B. &-= Br. n. 1889. C. Hbk. n. 654. 

 -5. Mycol. Scot. n. 625. Gonn. & Rab. t. 8./. 1. Ag. Bull. t. 528./. 1. 

 Fl. Dan. t. 2018./. 1. 



2. M. peronatus Fr.— Pileus 2.5-5 cent- (1-2 in.) and more 

 broad, light yellowish or pallid brick-rufescent, then becoming 

 pale, wood-colour or tan, at first fleshy-pliant, then coriaceo-?nem- 

 branaceous, convex then plane, obtuse, flaccid, slightly wrinkled, 

 even at the disc, at length lactulose, striate at the margin; flesh 

 white. Stem 5-7.5 cent. (2-3 in.) long, 2-4 mm. (1-2 lin.) thick, 

 stuffed, fibrous, tough, attenuated upwards, at length hollow and 

 compressed, furnished with a bark, light yellow then pallid, cuticle 

 villous but separating and rufescent when rubbed, somewhat in- 

 curved at the base, where it is clothed with dense, somewhat 

 strigose, yellowish or white villous down. Gills adnexed the7i 

 separating, free, moderately thin, and crowded, when young 

 whitish, pallid wood-colour, at length somewhat remote, rufescent. 



B. Woolly-sheathed at the base. Taste acrid like that of M. urens, odour 

 none. 



In woods. Common. July-Dec. 



Spores pip-shaped, 7x4 mk. W.G.S. Name— pero, a kind of boot ; pero- 

 natus, sheathed. From the strigose sheathing at the base of the stem. Fr. 

 Monogr. ii. p. 216. Hym. Eur. p. 465. Berk. Out. p. 218. /. 14./. 4. C. 

 Hbk. n. 655. S. Mycol. Scot.n. 626. Ag. Bolt. t. 58. Sow. t. 37. Fl. Dan. 

 t. 2018. f. 2. 



3. M. porreus Fr. — Pileus 2.5-5 cent - i l ~ 2 i n -) broad, dingy 

 yellowish, pallid when dry, coriaceo-membranaceous, flaccid, con- 

 vex then flattened, obtuse, even at the disc, striate at the margin, 

 opaque ; flesh pallid, almost of the same colour as the pileus. 

 Stem 7.5 cent. (3 in.) long, stuffed then hollow, tough, juiceless, 

 pubescent, somewhat thickened at both ends, red-fuscous, paler 

 at the apex, slightly villous at the base. Gills separating-free, 



