Tricholoma. 23 



IV. SERICELLA. Pileus at first silky, soon glabrous, 

 quite dry. 



* Gills broad, thickish, rather distant. 



sulphureum, Fr. Strong smelling. Entirely sulphur yellow or 

 p. tinged rufous, P. 3 8 cm. subumb. silky, even ; g. distant; s. 5 

 10 cm. striate, same colour inside ; sp. 9 10 x 5. 



bufonium, Pers. P. 37 cm. soon plane, subumb. silky, soon 

 glabrous, rugulose, opaque, purplish brown, umber, or tan ; g. 

 yellowish- tan then pallid ; s. 5 7 cm. flocculose, coloured like p. ; sp. 

 subgl. 45. 



lascivum, Fr. Smell strong. P. 4 5 cm. exp. and subdepressed, 

 even, silky then glabrous, tan colour then pallid ; g. arcuately 

 adnexed, crowded, white ; s. 4 6 cm. solid, rigid, tomentose, whitish, 

 apex mealy, rooting ; sp. 8 10 x 4 5. 



var. robustum, Cke. Robust. P. whitish, silky ; smell weak or 

 none. 



interveniens, Karst. P. convexo-plane, depr. silky then gla- 

 brous, rugulose near edge, tan then pale ; g. arcuato-adnex. crowded, 

 pallid ; s. solid, equal, rooting, fibrillose, pallid ; sp. 6 7 x 2 2'5. 



inamoenum. Fr. Foetid. White. P. 2 4 cm. exp. umb. silky 

 then glabrous, even; g. arcuato-adnexed, crowded; s. 7 10 cm. 

 equal, solid, rooting ; sp. 9 10 x 6 7. 



The only white, foetid Tricholoma. 



* * Gills thin, crowded, narrow. 



cerinum, Pers. P. 2 4 cm. exp. obtuse or depressed, even, dry, 

 almost glabrous, wax-yellow or brown ; g. crowded, yellow ; s. 2 3 

 cm. stuffed, fibrillosely striate, yellowish, base darker ; sp. - . 



[chrysenterum, Bull. Entirely yellowish outside and inside. 

 P. fleshy, convexo-plane, obsoletely umb. silky then almost glabrous ; 

 g. free, crowded, narrow ; s. solid, base with white wool. 



[stiparophyllum, Fr. Smell strong. P. exp. silky then glabrous, 

 yellowish white ; g. crowded, white ; s. hollow, white, glabrous, apex 

 inealy. 



[cerinum, Pers. P. exp. depr. almost glabrous, waxy yellow or 

 fuscescent ; g. crowded, yellow ; s. stuffed, fibrillosely striate, base 

 glabrous, often brownish. 



[onycbinum, Fr. P. exp. subumb. dingy purple or brown, margin 

 silky ; g. yellow, crowded ; s. pallid, apex reddish. 



ionides, Bull. P. 2 4 cm. soon plane, umb. even, dingy violet 

 then pale ; g. crowded, white, edge irreg. ; s. 3 4 cm. elastic, fibril- 

 lose, coloured like p. ; sp. 6 7 x 3 '5. 



Differs from T. humile and T. sordidum in white gills. 



var. parvum, Lasch. P. reddish brown. 



yar. persicolor, Fr. P. convexo-plane, peach-colour, then pale ; 

 g. sinuate, white ; s. paler than p. 



