DASYSCYPHA. 327 



** Externally brown, red, buff, or dingy. 

 Growing on dead herbaceous stems or leaves. 

 Growing on bark, wood, or branches. 

 Growing on ferns. 



A. Externally white. 

 | Paraphyses lanceolate. 

 * Disc white. 



Dasyscypha virginea. Fckl., Symb. Myc., p. 305 ; 

 Sacc., Syll., n. 1801. 



Scattered, or usually gregarious, shortly stipitate ; globose 

 then hemispherical, finally expanded with an upright, 

 delicate margin, about f- mm. broad ; whole plant snow- 

 white, or with a faint tinge of yellow on the very short, 

 rather thick stem ; excipulum composed of septate hyphae 

 about 4 p. thick, and more or less parallel, radiating from the 

 stem to the margin ; externally clothed with delicate, very 

 thick-walled, cylindrical hairs 34 //. thick, apex obtuse, and 

 sometimes crowned with a crystal or amorphous lump of 

 oxalate of lime, longest at the margin where they are up to 

 100 //, long, and form a crowded fringe; asci cylindric- 

 clavate, thick at the base; spores 8, irregularly biseriate, 

 slenderly fusiform, hyaline, continuous, straight, 5-10 X 

 1-5-2 p.; paraphyses lanceolate, apex acute, about half as 

 long again as the asci, colourless, about 4 fj. thick at the 

 widest part. 



Peziza virginea, Batsch, Elencli. Fung., p. 125. 



Lachnella virginea, Phil., Brit. Disc., p. 248. 



Lachnum virgineum, Karst., Myc. Fenn., i. p. 169 ; Eehm, 

 Krypt.-Flora, Disc., p. 872. 



On rotten wood, branches, and herbaceous stems. 



Characterised among the minute white species by the 

 lanceolate paraphyses, slender, very thick- walled, blunt 

 hairs, and radiating, long narrow cells of the excipulum. 

 The walls of the marginal hairs are so thick that the lumen 

 is usually almost obliterated, and although septate, the septa 



