14 Cincinnati Society of Natural Histoi'y, 



On wood and bark. Effused for several inches with scarcely 

 any border. The aculei are i)iibescent, with .some long hairs at the 

 apex. 



28. H. FARiNACEUM Pers, Subiculum effused, indeterminate, 

 mealy-crustaceous, white ; the border more or less flocculose, 

 Aculei slender, rather distant, very acute, entire, concolorous. 



On old Beech bark. Effused for an inch or more. The subicu ■ 

 lum is a very thin, white, mealy stratum, closely adnate to the 

 matri.x. The aculei are minute, sharp pointed and not crowded. 



29. H. NUDUM, B. and C. Subiculum innate or nearly ob- 

 solete, farinaceous, pale ochraceous. Aculei minute, short, dis- 

 tant, subulate, concolorous. 



On wood and the inner bark of Sugar Maple. The subiculum 

 is nearly the color of the wood, and the aculei in some places seem 

 to be growing on the wood ; but there is usually a tinge of color to 

 indicate the presence of the subiculiun, thovvgh the fibers of the 

 wood may be quite distinct. 



30. H. SUBTII.E. Fr, Subiculum very tender, innate in spots, 

 glabrous, watery, whitish. Aculei distant, acute or incised, con- 

 colorous. 



On bark and wood. Subiculum indeterminate, evanescent, 

 whitish, somewhat hyaline. Aculei very short, minute, falling 

 away to the touch. 



(lenus II. — Ikpkx, Fr. 

 Hymenfum inferior, dentate; the teeth seriately or reticulately 

 arranged, and connected together at the base by folds, which are 

 lamellate or porose. Fungi lignatile. 



I. Af^us. Pileus sessile or effuso-re flexed, marginate, 



I. I. cKAssus, B. and C. Pilei thick, corky, white, finely 

 pubescent, effuso-re flexed behind, and laterally concrescent. Teeth 

 lamellately arranged, compressed, unequal in length, concolorous. 



In woods upon trunks, not rare. I have seen it growing on a 

 standing trunk in an elongated mass of imbricated pilei several feet 

 in extent, after the manner of HvdnKni scpfentriivralc. Tlie single 

 pilei are i^ to 2^ inches in width, and j)rojcct an inch or two. The 

 lamellate arrangement of the teeth is very plain, those next the 

 margin are short, broad and flat, those farther behind are very long 

 and narrow, a half inch or more in length. This is one of the 

 most elegant tpecies of this genus. 



