116 FUNGUS-FLOKA. 



II. Entirely resupinate. 

 * Spores colourless. 



Hymenochaete nigrescens.. Cooke. 



Peltate, applanate, solitary or gregarious and sometimes 

 confluent, rigid, margin sometimes free and slightly reflexed ; 

 hymenium setulose, "brown then blackish ; setae conical, 

 "blackish, 80-140 X 10-12 p.; spores elliptical, 10 x 5 /*. 



Hymenochaete nigrescens, Cooke, in herb; Mass., Hon. 

 Theleph., p. 104. 



On dry wood. Sub-circular, 12 in. across. Adnate, 

 margin often free and upturned, almost smooth and greyish 

 below. Commencing as circular patches which usually soon 

 become confluent. Often radially cracked through the entire 

 substance. Hymenium blackish-umber, setulose, setae almost 

 black and opaque, numerous. 



Hymenochaete Stevensonii. B. & Br. 



Pale fawn-colour, rigid, margin obtuse, elevated ; setae 

 rigid, 20-40 x 8-10 /* ; spores elliptic-fusoid, 6-7 x 3-4 p. 



Hymenochaete Stevensonii, B. and Br., Ann. Nat. Hist., ser. 5, 

 v. iii. (1879), p. 211 ; Mass., Mon. Thel., p. 106. 



On yew. A very distinct species with an abrupt margin 

 which is sometimes a little thickened or raised ; hymenium 

 livid, or greyish pink, with a tinge of lilac when dry. 

 Patches about 1 in. across. 



Hymenochaete leonina. Berk. & Curt. 



Entirely resupinate, orange-ferruginous ; margin tomen- 

 tose ; hymenium unequal, inseparable, not cracked ; setae 

 acuminate, thick, 20-30 X 12-15 /t; spores subglobose, 

 6 X 5/x. 



Hymenochaete leonina, B. and C. ; Mass., Mon. Thel., p. 107. 



On dead wood. Broadly effused for several inches, thin, 

 firmly aduate ; margin almost indeterminate ; setae rare ; 

 hymenium variable in colour, often ferruginous-orange with 

 patches of pure yellow. 



Hymenochaete fuliginosa. Lev. 

 Effused, coriaceous, compact, obscure smoky-brown ; hy- 



