92 Cincivvati Society of Natural History. 



formed, silky, scaly, sooty black. Stipe stout, unequal, subto- 

 mentose, concolorous. Pores rather large, unequal, cinereous or 

 whitish. 



On the ground in woods in autumn : rare. Pileus 2 — 5 inches 

 broad. Stipe one and one-half inches or more in length. Pileus 

 and stipe here and tliere changing to black ; flesh soft, mar- 

 bled, pinkish when exposed to the air; pores becoming black 

 in drying ; a curious esculent species. 



3. Y. flavo-vircns, B. & Rav. Pileus fleshy, tough, subinfundi- 

 buliform, more or less irregular, subtomentose, dirty yellow, with 

 obscure zones of greeni.sh-yellow , the margin thin, involute; sub- 

 stance white. Stipe solid, more or less excentric, greenish-yel- 

 low. Pores medium, dccurrcnt, angular, irregular, becoming 

 lacerate, whitish, then greenish-yellow. 



On the ground in woods in autunm ; rare. Pileus 3 — 5 inches 

 across; stipe one to one and one-half inches long. The pileus 

 is more or less irregular, varying from orbicular to reniform and 

 lobed ; the pores are extremely dccurrcnt, extending down the 

 stipe sometimes almost to the base ; it is distinguished by its 

 peculiar greenish-yellow color, though the substance inside is 

 white. 



II. Lenti. Pileus coriaceous, not zonate ; truncigenous. 



4. P. IciilHS^ Berk. Pileus fleshy, tough, then coriaceous, umbili- 

 cate, minutely scaly, pale ochraceous. Stipe short, incurved, his- 

 pid and furfuraceous, concolorous. Pores decurrent, irregular, 

 white. 



On the dead branches of fallen trees. Pileus i — 2 inches broad ; 

 stipe one-half to one inch long. Pileus at first scaly and 

 reddish-brown, at length ncarl)' smooth and ochraceous; stipe cov- 

 ered by the pores nearly to the base ; [)ores large, rather deep, 

 roundish or subquadrate. 



5. P. brunialis, Pers. Pileus fleshy-tough, then coriaceous, 

 subumbilicate, villous and sooty, becoming glabrous and pale. 

 Stipe slender, hirsute and .scaly. Pores oblong and angular, thin, 

 acute, denticulate, white. 



On dead trunks and branches, in late autumn and winter. Pileus 

 one to three inches broad ; the stipe one to two inches long ; there 



