COLLYBIA. 139 



A. davus. It has, however, a bitter, unpleasant taste. 

 (Berk.) 



Collybia tenacella. Pers. 



Pi]eus about ^-f in. across, flesh thin, white, not hygro- 

 phanous ; convex then expanded, orbicular, somewhat umbo- 

 nate, even, glabrous, brown, becoming pale, livid, or rarely 

 white ; gills adnexed, emarginate, broad, ventricose, hence ap- 

 pearing lax, rather distant, distinct, snow-white ; stem 23 in. 

 long, sometimes up to 5 in., not 1 line thick, equal, straight, 

 tven, glabrous, tawny, apex white, naked, ending in a long, 

 fibrillose rooting base ; spores elliptical, 5-6 x 3 /x. 



Agaricus tenacella, Pers., Ic. Pict., t. 1, f. 3, 4; Cke., Hdbk., 

 p. 70; Cke., Illustr., pi. 152u, and 649. 



In woods, especially pine. 



Very tough ; inodorous, solitary, or sometimes in troops. 

 Differs from C. esculenta in the root being downy, and the 

 gills snow-white. 



Pileus |-1 in. broad, when young conic, then convex and 

 subhemispherical, at length expanded then plane, sometimes 

 slightly umbilicate, not striate, sub-carnose, smooth, dry, 

 cinereous, inclining to yellowish ; often altogether abortive. 

 Gills free, or often adnexed, ventricose, sometimes re- 

 markably so, rather distant, the shorter ones truncate 

 behind ; in general pure white, but sometimes with a tinge 

 of grey; under a powerful lens covered with variously 

 hooked or conic papillae. Stem 2-4 in. long, scarcely 1 line 

 thick, flexuous, filiform, attenuated very much towards the 

 base and somewhat strigose, hollow, pale above, below 

 tawny, very minutely pubescent under a good lens ; when 

 young beautifully downy, and then not distinctly hollow, 

 but with only a pale line down the centre. Taste very 

 pleasant. (Berk.) 



Far. stolonifer, Jungh., in Linnea (1830), p. 396; Cke., 

 Hdbk., p. 70; Cke., Illustr., pi. 152c. 



The plants spring at intervals from a long, creeping, 

 etolon-like or rhizomurphoid mycelium. 



Among fir leaves, &c. 



Collybia eustygia. Cooke. 

 Odour of rancid meal. Pileus l-2 in. across, flesh white, 



