Hymenochcetc 



THELEPHORACE^E 



409 



1829. H. abietina Mass. (from the habitat, trunks of fir, abics) a b. 

 P. effused, tomentose, sienna-brown. Hym. papillose, fuscous- 

 ferruginous, dull yellowish-purple, brownish-salmon or claret- 

 brown, clouded ivory-ochre or purple-lilac, becoming pale. 



Decaying fir, spruce-fir. 2\ in. Cracking when dry. 



1830. H. disciformis W. G. Sm., Thelephora disciformis DC. (from 



its frequent disc shape) a. White to ivory-white. 



P. disciform, thinner towards the definite free naked marg. 



Hym. unequal. 



Trunks, oak. \\ in. This is Stereum disciform e Fr. Cooke has placed 

 it in Peniophora, and has illustrated the plant with granular setce. Saccardo 

 follows Cooke. My plants and those in British Museum have smooth 

 seta;. 



1831. H. Boltonii Cooke (after James Bolton of Halifax) a. 



P. villous, white to ochre or pale lavender, zoned brown or black. 



Hym. white to pale brown, becoming ferruginous-fuscous or 



dark red ; marg. crisped, free, thin. 

 Bird cherry. Feb. if in. Cracking when dry. 



LXXXV. CORTICIUM Pers. 



(From the usual habitat, bark, cortex) 



Resupinate. Hymenium often broadly effused, in a few species 

 the margin is slightly upraised, amphigenous, even or tuberculose, 



Fig. 100. — a, B. Corticiiim salicinitth Fr., entire and in section, one-half 

 natural size, c, hymenium with basidia and spores, X 500. D, E, C.cakcuni Fr., 

 entire and in section, one-half natural si/e. 



waxy or fleshy-soft, usually contracting and cracking when dry, smooth, 

 arising immediately from the mycelium without an intermediate 



