TJie Mycologic Flora of tJie Miami Valley. 5 



B. Fileiis coj'iaceous. 



4. D. UNicoLOR, Bull. Pileus coriaceous, villose-strigose, cin- 

 ereous, with zones of the same color. Pores labyrinthiform, flexu- 

 ous, intricate, acute, at length lacerate-dentate. 



In woods on trunks^ot' all sorts; common. Pileus 2-3 inches 

 in breadth and projecting an inch or more, usually more or less 

 connate and imbricate; older specimens become gray and yellow- 

 ish with more marked zones and concentric furrows and ridges. 

 The pores are whitish-cinereous or sometimes brownish; they are 

 soon broken up into irregular plates and teeth. I occasionally 

 meet with specimens extensively effused and nearly resupinate. 



Genus V. FAVOLUS, Fr. 



Hymenium reticulate cellulose or alveolate. Alveoli radiating, 

 formed of densely anastomosing lamellte ; elongated. Spores 

 white. Fungi epixylous. 



I. F. Canadensis, Klotsch. Pileus . fleshy-tough, thin, 

 reniform, fibrillose-scaly and tawny, becoming pale and glab- 

 rous. Stipe eccentric or lateral, very short or obsolete. Alveoli 

 angular, elongated, whitish; the dissepiments becoming thin, rigid 

 and dentate. Spores oblong, .012x007 '^'^^ 



In woods on fallen branches, especially of Hickory, common. 

 Pileus 1-2 1^ inches in breadth, sessile or with a very short stipe. 

 Specimens with an eccentric stipe resemble Folyporus leutus, Berk., 

 but the pores are much larger than those of this species. This is 

 undoubtedly the Folyporus Boucheatius, Kl. of Lea's Catalogue, 

 as is confirmed in the Notices of Berkeley under No. 44; but Fries, 

 in the Novae Symbolae, seems to indicate that these American 

 forms are not his species, and certainly the description in the Epi- 

 crisis does not apply to our plant. Specimens from New England 

 gathered by me are glabrous, or scantily fibrillose, and may be the 

 F. Alutaceus, B. and Mont. ; they are, no doubt, what is meant 

 by Folyporus Boucheanus^ var peponiiius, B. and C, in the Notices 

 of N. A. Fungi, under No. 44. The original description of 

 Klotsch was based upon a single specimen in the herbarium of 

 Hooker, and it applies remarkably well to our plants, except that 

 the pileus is sometimes lobed as in F\ Alutaceus, B. and Mont. 



Genus VI. MERULIUS, Haller. 

 Hymenophore formed out of a mucedinous interwoven mycel- 

 ium, covered by a soft-waxy contiguous hymenium ; the surface of 



