202 



Cincinnati Society of Natural History. 



Pileo convexo, albo ; stipite gracili, deorsum attenuato, depresso- 

 velutino, fusco, sursum albo, furfuraceo ; lamellis carneo-albis, antice 

 latis, postice longe decurrentibus. 



Pileus two lines broad, convex, tough, white; stem one inch high, 

 attenuated below, attached by a minute bulb, brown and clothed for 

 three quarters of its height with depressed velvety pubescence, in- 

 crassated above where it passes into the pileus, white sprinkled with 

 furfuraceo us particles ; gills distant, broad in front, very decurrent 

 behind, whitish inclining to flesh color ; interstices more or less re- 

 ticulate. Allied to Marasmius insititius. Remarkable for its very 

 decurrent gills. 



Lextixus tigrixus, Fr. — On dry stumps. Cincinnati, Nov., 1842.* 



Lextixus c^espitoscs, n. sp. — In woods, on the ground. Waynes- 

 ville, Sept. 8, 1844. 



Eximie csespitosus ; pileo piano, alutaceo, fibrillis brunneis aclpress- 

 is sparsis ornato, margine incurvo ; stipite elongato, striato, griseo- 

 albo. fibrilloso; lamellis integris, albis, longe decurrentibus. 



Pilei forming tufts of thirty or more individuals, one and a half to 

 two inches across, plane tough, yellowish-buff, clothed with, close- 

 pressed, brownish-red fibrillar ; margin incurved ; stems three inches 

 high, two lines thick, flexuous*, tough, striate, gra} T ish-white, fibrillose, 

 solid formed of fibres; gills white, very decurrent and attenuated be- 

 hind, quite entire. A very curious species with the habit of Agaricus 

 contortus, Bull. It is easily distinguished from L. sitaneus and its 

 allies by its entire gills. 



Lextixus sulcatcs, Berk. — In the cracks of dry fence rails. Cincin- 

 nati, May 28, 1842. 



Parvus; pileo primum subeonico, demum hemispherieo, carnosulo, 

 diffracto squamoso, sericeo-virgato, rufescente, margine sulcato; sti- 

 pite centrali, brevi, solido, subconcolore, furfuraceo; lamellis distanti- 

 bus. latiusculis, subcrassis, postice emarginatis, pallidis. — Berk, in 

 Hook. Lond. Journ., v. iv., p. 301. 



Pileus not three quarters of an inch broad, hemispherical or nearly 

 so, at first slightly conical, of a more or less rufous tint, broken up into 

 irregular scales, sericeo virgate (sometimes the scales are more or less 



* The gills have anastomosed in these specimens to such an extent as to form a solid 

 wood mass. 



