HYMENCCHAETE. 117 



meninm even, densely setulose, setae 30-50 x G-8 fjL ; spores 

 subglobose, o X 4 yu. 



HymenocJiaete fuliginosa, Lev., Ann. Sci., Nat., ser. 3, 184G,. 

 p. 152 ; Mass., Mon. Thel., p. 109. 



On wood. Thin, closely adnate, margin very thin, 

 yellowish rust ; often much broken into patches and almost 

 indeterminate ; hymeniiim umber with rust or purple tinge, 

 appearing almost smooth Tinder a lens, sometimes minutely 

 cracked and brighter in colour. The setae are often clear 

 purple by transmitted light, instead of brown, the usual 

 colour. 



** Spores coloured, usualhj olive. 



Hymenochaete corrugata. Lev. 



Broadly effused, closely adnate, rigid, pale cinnamon ; 

 hymenium setulose ; when dry very much cracked ; setae 

 conico-acuminate, 70-120 X 8-10 /a ; spores elliptical, olive, 

 7-8 X 4-5 jji. 



HymenocJiaete corrugata, Lev., Ann. Sci. Nat., ser. 3, v. 

 p. 152 ; Mass., Mon. thel., p. 110. 



On wood. Broadly effused, closely adnate, so that the 

 irregularities of the matrix are followed ; hymenium varying 

 from dark brown, through ferruginous to cinnamon and 

 dirty grey when dry, there is no 'tinge of purple. Cracked 

 into polygonal areas when diy. 



Hymenochaete croceo-ferruginea. Mass. 



Broadly effused, incrusting, closely adnate, very thin, 

 varying from orange-ferruginous to brownish ; hymenium 

 very minutely velvety ; cracked when dry ; setae cylindrical, 

 inflated at the base; 70-100 x 30-35//,; spores subgiobose, 

 olive, 7 X 6 /A. 



HymenocJiaete croceo-ferruginea, Mass., Mon. Thel., p. 110. 



On dead rose stems. Margin sometimes byssoid, at others 

 indeterminate. Eesembling H. corrugata, but differing in 

 the very much swollen bases of the setae and the subgiobose 

 spores. 



Hymenochaete tabacina. Lev. 

 Subcoriaceous, thin, flaccid, effused, margin often reflexcd, 

 silky, at length smooth, subferruginous, intermediate stratum 

 and margin bright golden-yellow; hymenium cinnamon or 



