194 Cincinnati Society of Natural History, 



ous and brownish. The tomentum sometimes disappears on the 

 margin and in concentric bands on the surface ; specimens orna- 

 mented by these concentric brown zones are the var. fasciatum, 

 Schw. The hymeniuni at times has a fleshy tinge, at others it 

 acquires a smoky or brownish hue. It is quite Hkely some of the 

 forms here included may be referred to S. lobatuin, Kunz., and 

 some perhaps to other species. 



3. S. PURPUREUM. Pers. Soft-coriaceous. Pileus effuso- 

 reflexed, subimbricate, zonate, villous-tomentose, palHd or whitish. 

 Hymenium naked, even, glabrous, purplish. 



On old trunks of black cherry, etc.; not uncommon. Pileus 

 projecting half an inch or more, usually much effused and densely 

 imbricated, when dry becoming rigid, pallid or yellowish, with 

 sometimes a black zone near the margin. Hymenium purple or 

 lilac, changing to cinereous or sometimes to brownish. 



4. S. sPADiCEUiM, Pers. Coriaceous. Pileus effuso-reflexed, 

 villous, subferruginous; the margin rather obtuse, white. Hymen- 

 ium even, glabrous, becoming brownish, reddish if rubbed when 

 fresh and growing. 



On old stumps and trunks; common. Pileus nearly an inch 

 in length and breadth, mostly imbricate and confluent. Tiie 

 pileus is without distinct zones, the hymenium gradually acquires a 

 smoky tint. We seem to have nearly the typical plant of this 

 species. 



5. S. iiiKsUTUM, Willd. Coriaceous, rigid. Pileus effused 

 and reflexed, strigose hirsute, subzonate, becoming jnallid; the 

 margin rather obtuse, yellow. Hymenium even, glabrous, naked, 

 yellowish or variously colored. 



On trunks and branches; common. Pileus about half an inch 

 in length and breadth, confluent and subimbricate, but often sessile 

 and fan shaped with a narrow base; both i)ileus and hymenium are 

 at first pale yellowish ; the liairy covering of the surface is arranged 

 in faint ( f)ncolor(nis zones. This is probably 7 Itclcp/iora ramcalis, 

 Schw., and perhaps also Stercuni niol/c, Lev. 



6. S. RADIANS, Fr. Coriaceous, rigid. Pileus effused and 

 reflexed, radiate-virgate with innate fibres, pallid with bay zones, 

 glabrate, shining. Hymenium even, glabrous jjallid. 



On trunks and branches; common. Pileus half an inch or 

 more in length and breadth, effused and confluent, but olien sessile 

 with a narrow base and fan-shaped (jr renifonn. Its peculiar marks 

 are the innate fibrils radiating from the base and the crowded nar- 



