412 BRITISH FUNGI 



C. piiteana. — Broadly effused, thickish, separable as a film from 

 the matrix, dingy yellow, becoming olive brown, margin byssoid, 

 whitish. 



Somewhat waxy when young, and can be peeled off as a tough 

 sheet. 



On wood and bark. 



C. incrustans. — Effused, indeterminate, dirty white or pale 

 ochraceous, powdery. 



Running over twigs, leaves, etc., as a thin, whitish, inseparable 

 film. 



C. uchracea. — Very broadly effused, submembranaceous, usually 

 indeterminate, hymenium pulverulent, whitish, then ochraceous. 



Inseparable. In its most highly developed condition, somewhat 

 resembling C. sitlphitrea, from which it is distinguished by its 

 indeterminate margin and small, subglobose spores. 



Spreading over the inner surface of bark, etc. 



C. cookeii. — Effused, fibrilloso-membranaceous, edge byssoid, 

 whitish ; hymenium olive with a rusty tinge, even, pulverulent. 



On rotting wood. 



C. memhranacea. — Forming broadly effused, roundish patches, 

 thin and very brittle when mature, separable from the matrix, 

 edge minutely fibrillose, yellowish ; hymenium minutely pul- 

 verulent, pallid, then dingy pale ferruginous. 



Forming patches often a foot or more in diameter, thin, becoming 

 cracked and peeling off in patches when dry. 



On wood, old walls, etc. 



C. pulverulenta. — Broadly effused, edge thin, whitish ; hy- 

 menium rusty brown, pulverulent, even, entire. 



The rusty brown, or sometimes dark brown hymenium, white 

 byssoid margin, and large spores stamp this species. 



On dead wood. 



C. cinnamomea. — Commencing as isolated patches, which soon 

 grow into each other, and form a broad, irregularly effused patch, 

 with a coarsely fibrillose margin ; hymenium fleshy, dingy cinna- 

 mon, cracked when dry. 



Fleshy and rather soft, becoming cracked during drying ; some- 

 times dingy brown. Superficially resembhng dark forms of Penio- 

 phora vehitina, but distinguished by the coloured spores and the 

 absence of cystidia. 



On wood and bark. 



C. berkeleyii. — Effused, determinate, thick ; hymenium becoming 

 much cracked, silky in the cracks, yellowish brown, assuming a 

 purple tinge with age. 



Very thick and compact for a Coniopliora, hymenium becoming 

 much cracked, due to contraction during drying. The margin is 



