BELONiDimr. 227 



soft, at first subglobose and closed, then jjlane and tisually 

 slightly marpiinate ; disc whitish, externally horn-colour or 

 tawny, smooth, margin paler, especially when dry ; i-1 mm. 

 across ; escipnlnm of interwoven hyphae running out into 

 clavate, septate, brownish parallel ends, the terminal cells 

 forming a parenchymatous cortex of circular or polygonal 

 cells which become smaller upwards, and run out at the 

 margin into parallel, septate, pale hyphae ; asci cylindric- 

 clavate, apes narrowed, base rather stout, S-spored ; spores 

 iiTegularly 2-seriate, narrowly cylindrical, apex blunt, base 

 acute, hyaline, smooth, 3-septate, rarely o-septate, straight or 

 very slightly curved, 28-33 x 3-4 /jl; paraphyses 3-4 /jl 

 thict, hyaline, almost cylindrical. 



Peziza (^MoUisia\pUs^ora, Cooke, Grev., iii. p. 66. 



Selonium filisponim, ^acc, Syll., viii. n. 2039. 



On sheaths of various grasses. 



Type specimen examined. 



Belonidium lacustre. Phil., Brit. Disc, p. 149. 



Ascophore sessile, attached by a central point, closed at 

 first, then exiaanding and becoming quite plane, but the 

 margin slightly rais^-d and narrowly incurved when dry : 

 orbicular, rather soft and watery, disc plane or even slightly 

 convex, dingy olive, yellowish-brown when dry, externally 

 blackish bro\vn, smooth, j-li mm. across ; cortical cells poly- 

 gonal, brown, 10—12 yu, diameter, passing into parallel, septate, 

 paler hyphae at the margin ; asoi clavate, 8-spored ; spores 

 2-seriate, elliptic-oblong, hyaline, smooth, 1-3-septate, 

 21-25 X 6-7 fL] paraphyses cylindrical, about 3 ju, thick. 



Peziza lacustris. Fries, Svst. Myc, ii. p. 143. 



Xiptera lacustris, Sacc, Syll., viii. n. 2085. 



Pedza scirpi, Eab., Herb.' Myc, n. 730; Elv. Brit., n. 183. 



On dead stems of Scirpus, Juncus, Ariindo, itc 



Specimen in Pries', Scler. Suec, n. 173 examined; Cooke, 

 Fung. Brit., ed. ii, n. 655 ; Phil., Elv. Brit., n. 183 ; Desm., 

 Cr. Fr., ser. i., 1064, are also identical. 



Spores for a long time continuous, then 1-septate, rarely 

 reaching the 8-septate stage. The excipulum is formed of 

 slender, interwoven hyphae that become clavate, septate, 

 and brown, and are arranged parallel at the periphery, the 

 external cells forming the parenchymatous cortex. 



Q 2 



