112 FUNGUS-FLORA. 



the cystidia fall away, leaving the hymenium glabrous, but 

 the microscope always reveals their presence. 



Peniophora ochracea. Mass. 



Broadly effused, inseparable, margin radiato-byssoid, soon 

 disappearing ; hymenium ochraceous, sparkling with minute 

 crystals of lime when fresh, cracked when dry; cystidia 

 fusoid, 40-50 x 20 p. ; spores elliptical, 10 x 5 /*. 



Peniophora ochracea, Mass., Mon. Thel., p. 150. 



Gorticium ochraceum, Fr., Epicr. 563 ; Cke., Hdbk., n. 635 ; 

 Berk., Outl., p. 274 ; Stev., B. Fung. ii. 378. 



On bark and wood. Closely resembling in general habit, 

 colour, and in presence of sparkling atoms on the hymenium, 

 Goniophora olivacea, but distinguished by the cystidia and 

 smaller colourless spores. 



Peniophora cinerea. Cooke. (fig. 7, p. 94.) 



Commencing as isolated rounded patches, which usually 

 become confluent, forming broadly effused patches, rigid; 

 hymenium ashy or with brown tinge, margin similar ; cystidia 

 i'usoid, 30-50 x 15-20 p. ; spores globose, 5-7 p. 



Peniophora cinerea, Cke., Grev. viii. p. 20, pi. 123, f. 8; 

 Mass., Mon. Thel., p. 148. 



Corticium cinereum, Berk., Outl., p. 275 ; Cke., Hdbk., n. 

 937; Stev., Brit. F. ii. 279. 



On bark and wood, especially ash. Often commencing 

 as detached, circular patches of a brownish colour, these 

 usually soon grow into each other, forming irregular patches, 

 sometimes extending for several inches. The hymenium 

 is minutely velvety, and varies from brownish-grey, through 

 lead-colour to greyish-lilac when dry. 



Peniophora velutina. Cooke. 



Broadly effused, rather fleshy, inseparable, margin running- 

 out into long branching strands ; hymenium velvety, cream 

 colour, often slightly tinged with pink or buff; cystidia 

 cylindrical or attenuated upwards, 6080 X 10-15 /x; spore& 

 elliptic with a minute apiculus, 10 x 5 //.. 



Peniophora velutina, Cke., Grev. viii. p. 21, pi. 125, f. 15 ; 

 Mass., Mon. Thel., p. 152. 



Corticium velutinum, Berk., Outl., p. 273 ; Cke., Hdbk., n, 

 927; Stev., Brit. F. ii. 275. 



