MYCENA 385 



fibrillose, apex interruptedly striate; base rooting, villose. Gills whitish, 

 greyish at the base, sometimes pinkish, adnate, crowded, at length 

 soft. Flesh whitish, tawny in the st., thick at the disc. Spores white, 

 subglobose, 8-10 x 6-8 /A, 1-guttulate; basidia with 4-sterigmata. 

 Cystidia clavate, apex covered with short setae, 30-40 x 9-16/A. 

 Smell somewhat alkaline. Densely caespitose on oak stumps, and 

 at the base of posts. Aug. Dec. Not uncommon, (v.v.) 



1225. M. parabolica Fr. Fr. Icon. t. 79, fig. 3, wrongly cited as t. 80, 

 fig. 3, in the text. Parabolica, like a parabola. 



P. 25 cm., somewhat violaceous, disc black, margin whitish, or lilac, 

 submembranaceous, at first erect and oval, then conical, never ex- 

 panded, moist, somewhat shining when dry, smooth, striate to the 

 disc. St. 5-8 cm. x 2-3 mm., whitish, or lilac, apex dark violaceous, 

 tense and straight, not very rigid, white mealy when young, smooth, 

 dry; base thickened, bearded-rooting. Gills white, greyish at the base, 

 adnate, ascending, subdistant, rarely connected by veins. Spores 

 white, elliptical, 7-8 x 5-6 /z. "Basidia 2-spored. Cystidia obovate, 

 crowned with minute wart-like setae" Lange; "conical (not, or 

 slightly ventricose), mostly sharp pointed, 40-60 x 10-20 /u," v. 

 Hoehnel. Gregarious, or caespitose. On needles and rotten wood, in 

 coniferous woods. Sept. Dec. Uncommon, (v.v.) 



1226. M. tintinnabulum Fr. Fr. Icon, t 79, fig. 4, wrongly cited as 

 t. 80, fig. 4, in the text. Tintinnabulum, a door bell. 



P. 2-3 cm., date brown, becoming pale, yellowish fuscous, azure blue, 

 or whitish, submembranaceous, very tough, campanulato-convex, then 

 plane, smooth, subviscid when moist. St. 2-3 cm. x 1-2 mm., pallid, 

 very tough, smooth; base shortly white-strigose. Gills whitish, then 

 cream, or flesh colour, adnate, decurrent with a tooth, horizontal, 

 narrow, very thin and crowded. Spores white, "elliptical, 9-10 x 

 5-7 /x; basidia with 4-sterigmata. Cystidia on edge of gill subulate" 

 Rick. For Mycena tintinnabulum Fr. sensu Schroet., v. Hoehnel and 

 Lange give the following dimensions. Spores long-cylindrical, or 

 ovate, 5-7 x 2-5-3jn. Cystidia vesiculose, obovate, subglobose, or 

 cylindrical, often set with wart-like setae, 9-15/z across. Caespitose, 

 or solitary. On fallen beech trunks. Oct. April. Uncommon. 



IV. St. fragile, dry, juiceless, fibrillose at the base, scarcely rooting, 

 but not dilated nor inserted. P. hygrophanous. Gills changing 

 colour, at length somewhat connected by veins. Usually strong 

 scented, solitary and terrestrial, a few caespitose and lignicolous. 



1227. M. atroalba (Bolt.) Fr. Bolt. Hist. Fung. t. 137. 



Ater, black; alba, white. 



P. 2-3 cm., bistre blackish, whitish at the margin, submembrana- 

 ceous, conico-campanulate, obtuse, smooth; margin pellucidly striate. 



B, B. B. 25 



