DASYSCYPHA. 339 



rough, hyaline, 30-50 x 3-4 /x ; cortex minutely paren- 

 chymatous, the cells becoming parallel and running out into 

 the marginal hairs ; asci narrowly clavate, apex narrowed, 

 pedicel short, stout, 8-spored ; spores hyaline, continuous, 

 straight or slightly bent, cylindric-fiisiform, or with the 

 broadest part above the middle, and inclined to be clavate, 

 2-seriate or often almost 1-seriate, 6-10 X 2-2*5 /x; para- 

 physes very slender, cylindrical, hyaline. 



Peziza hyalina, Pers., Disp. Meth. Fung., p. 33. 



Lachnella hyalina, Phil., Brit. Disc, p. 267, pi. viii. fig. 48. 



Pseudohelotium hyalinum, Fckl., Syinb.- Myc, p. 298. 



On wood, chips, inside bark, &c. 



Distinguished by the white, semitransparent, watery 

 aspect of the ascophore when fresh, and by the very short, 

 delicate, external hairs. 



Specimen in Rab., Fung. Eur., n. 1615, examined. 



Dasyscypha carinata. Mass. (figs. 24, 25, p. 156.) 



Ascophore sessile, about ^ mm. across, gregarious, every 

 part snow-white, globose at first and with a minute pore, 

 at length expanding a little ; externally clad with short 

 tomentose down formed of slender aseptate hyphae ; longi- 

 tudinally channelled so as to present 5-7 distinct acute ridges 

 or keels ; asci clavate, not much narrowed at the base, 

 spores 8, irregularly biseriate, subfusiform, continuous, 

 hyaline, guttulate, 11-16 x3/x; paraphyses filiform. 



Trichojyeziza carinata, Cke. & Mass., Grev., v. 21, p. 121. 



On dead fern stems. 



Among the most beautiful of the many interesting species 

 of fungi found by my friend Mr. C. Crossland of Halifax. 

 Readily distinguished by the distinct external, longitudinal 

 grooves. 



Trichopeziza hexagona, Fckl., not yet recorded for Britain, 

 externally resembles the present species, but has much 

 smaller spores. 



Dasyscypha asterostoma. Mass. 



Gregarious or scattered, minute, sessile, at first globose 

 and closed, then cylindric-globose, opening circular, rather 

 contracted, everywhere pure white, both when fresh and dry, 

 very thin and delicate, up to \ mm. across, externally pilose, 



z 2 



