152 THKLKPHOREI. 



H. nibiginosa. Lev. 



Pileus, rigid effuso-reflexed, velvety, dark rubiginous, 

 intermedium stratum tawny ferruginous. 

 Hymenium, ferruginous, velvety. 

 Common on old weeping willow stumps. 



H. curtisii. Berk. 

 Pileus, coriaceous, effuso-reflexed, brown, slightly sulcate. 

 Hymenium, even, velvety with brown bristles. 

 Common on half-decayed oak branches. 



H. agglutinans. 



Common on living alder whips, about the only stereum growing on 

 living wood. 



H. corrugata. 



Effused, crustaceous, spread over different kinds of dead 



wood, much cracked, and corrugated when dry, dark lead 

 color. 



In woods near Fogelsville, Pa. 



Genus LXIV. CORTICIUM. Fr. 



Hymenium soft and fleshy when moist, collapsing when dry, 

 often rimose. 



C. lacteum. Fr. 



Membranaceous, milk white beneath. 

 Hymenium, waxy when moist, cracked when dry. 

 Common on hickory branches. 



C. Iseve. Fr. Even Corticium. 



Membranaceous, villoso-fl.brillose beneath, circumference 

 fibrous. 



Hymenium, even, flesh color. 



On different kinds of dry wood. 



