420 BRITISH FUNGI 



P. pubera. — Broadly effused, thin, indeterminate, inseparable ; 

 hymenium whitish or dirty pale buff, minutely velvety, cracked 

 when dry. 



Often very broadly effused, margin usually altogether indeter- 

 minate. 



On bark and wood. 



Sub-genus Scopuloides. Cystidia arranged in clusters. 



P. hydnoides. — Broadly effused, indeterminate ; hymenium grey, 

 setulose. 



Resembling^several of the adnate species of Hydnum and Gran- 

 dinia under a pocket lens ; but on microscopic examination the 

 spine-like projections are seen to consist of clusters of typical 

 cystidia. 



On bark. 



Hymenoch^te 



Entirely resupinate or with the edge more or less free and re- 

 flexed, that is, bent over ; hymenium minutely bristly or velvety, 

 due to the presence of coloured bristles or cystidia. 



Closely resembling PeniopJwra in habit and in the bristly hy- 

 menium ; but in the present genus the bristles are coloured, and 

 impart to the hymenium a rusty or brownish colour. 



1. Upper portion jree and usually reflexed. 



H. ritbiginosa (PI. XXXII, fig. 3). — Effused, rigid, upper part 

 reflexed, rusty brown, velvety ; hymenium rusty, often with a 

 tinge of purple, edge brighter coloured ; spores colourless. 



Sometimes altogether resupinate, at others a considerable portion 

 is free and arched over ; often imbricated, or many overlapping 

 free portions are present ; spores colourless. 



On wood. 



H. tahacina. — Thin, resupinate or the edge free and curved over, 

 somewhat rusty ; hymenium cinnamon or rusty with a purple 

 tinge, margin golden yellow or orange ; spores coloured. 



Close to H. nihiginosa, but the spores in the present species are 

 coloured. 



On wood and bark. Often nearly covering old dead trunks. 



H. avellana. — Coriaceous and hard. Edge obtuse, free, narrowly 

 reflexed, reddish brown, velvety ; hymenium minutely velvety, 

 pale brown, readily becoming stained red when bruised ; spores 

 colourless. 



Patches usually small, sometimes effused, edge free all round or 

 reflexed above only ; hymenium when dry dingy ferruginous, pruinose. 



On hazel, beech, etc. 



2. Entirely restcpinate. 



H. leonina. — Broadly effused ; hymenium l)right rust}' orange, 

 often with patches of clear yellow ; spores colourless. 



