The Mycologic Flora of the Miami Valley, Ohio. 1 97 



663. We have retained the name given in the Elenchus of Fries 

 I., p. 189, which we suppose to be the original one in Syn. Car., 

 No. 1061. 



Genus V. — Hymenoch.ete, Lev. 



Coriaceous, dry. Hymenium even, beset with minute rigid 

 setae. 



The hymenium with a common lens is velvety or pubescent, 

 but with a moderate magnifying power of the compound microscope, 

 the minute usually colored bristles are brought out distinctly to 

 view. 



I. Apus. Pileus effuso-reflexed. 



1. H. RUBIGINOSA, Schrad. Coriaceous-rigid. Pileus effuso- 

 reflexed, subfasciate, velvety, reddish; afterward bt coming glab- 

 rous and brown ; the intermediate stratum tawny-ferruginous, 

 Hymenium ferruginous, velvety with minute bristles. 



On hard wood of oak, beech, etc.; common. Pileus 1-2 

 inches in breadth and projecting ^ to f of an inch. The single pilei 

 are often shell-form but frequently many are confluent and im- 

 bricate. It is thin rigid and brittle. 



2. H. ciNERASCENS, Schw. Coriaceous. Pileus effuso- 

 reflexed, strigose-hirsute, subzonate, whitish or cinereous. Hy- 

 menium cinereous, sometimes with a smoky or purj^lish tinge, be- 

 coming pallid or whitish, velvety with minule pellucid bristles. 



On trunks of Mulberrv and Ehn ; not uncommon. Often oc- 

 curring as small resupinate patches with a narrow reflexed margin, 

 but sometimes extensively effused for several feet with pilei re- 

 reflexed half an incn or more. It is sometimes found wiih pale 

 yellowish zones. The delicate ])ellucid bristles appear to be true 

 setae and not metuloids of Dr. Cooke's genus Peniophora. 



3. H. cuRTisii, Berk. Coriaceous, thin. Pileus effused 

 and narrowly reflexed, pallid, glabrate; the margin ferruginous. 

 Hymenium papillate, rugose, becoming rimose, ferruginous, the 

 minute bristles few and scattered. 



On branches and twigs of Oak ; common. Appearing first 

 as small orbicular peltate patches with a paler subbyssoid margin, 

 these then become confluent and effused sometimes for several feel 

 in length, with a very narrow reflexed margin on either edge. The 

 growing specimens are a bright ferruginous, becoming dull with 

 age. 



