DASYSCYPHA. 335 



forming a ciliated margin ; but as the hairs are thin-walled, 

 soft and rather wavy at times, and the entire fungus very 

 thin and delicate, it is placed in the genus Dasyscypha, 



Dasyscypha candidata. Mass. 



Scattered, or more frequently gregarious, sessile and 

 broadly adnate, very thin, soon plane with a slightly 

 upraised margin that is often more or less wavy, every 

 part snow white or disc pallid when old, up to 1 mm. 

 broad ; excipulum parenchymatous, cells small, irregularly 

 polygonal ; externally densely downy, hairs slightly clavate, 

 40-70 fjL long by 3-5 /jl at the thickened apex ; mixed with 

 the above are numerous elongated, very delicate hyphae 

 about 3 /i thick which radiate from the ascophore and 

 form a delicate cobweb-like subiculum on the matrix ; asci 

 cylindric-clavate, apex slightly narrowed, 8-spored ; spores 

 irregularly biseriate, cylindric-fusiform, straight or slightly 

 curved, hyaline, for a long time continuous, finally 1-septate, 

 6-9 X 1'5 f/.; paraphyses filiform, not thickened upwards, 

 septate. 



JPeziza candidata, Cooke, Grev., vol. i. p. 180. 



Lachnella candidata, Phil., Brit. Disc, p. 273. 



Trichopeziza candidata, Sacc, Syll., viii. n. 1678. 



On dead stems of Buhus. 



A remarkable and very distinct species, forming extended 

 snow-white patches when gregarious. Inclining towards the 

 genus Tapesia, from which it is distinguished by the delicate, 

 floccose mycelium only anchoring the individual ascophores, 

 and not forming an extended subiculum on the substratum. 



Type specimen examined. 



Dasyscypha ciliaris. Sacc, Syll., viii. n. 18-13. 

 (figs. 1-2, p. 156.) 



Gregarious or rarely scattered, shortly stipitate, almost 

 globose at first then expanding and becoming almost plane, 

 margin minutely ciliate, snow-white or with a very slight 

 tinge of yellow on the slender, cylindrical stem, about ^ mm. 

 high and broad, waxy ; excipulum parenchymatous, towards 

 the margin the cells are almost square in outline, 5-8 /j, 

 across, and with a tendency to be arranged in parallel rows ; 

 lower down the cells become longer and narrower ; externally 

 pilose, the hairs longest and most numerous at the margin. 



