BELONIDIlDf. 227 



soft, at first subglobose and closed, then plane and usually 

 slightly margiuate ; disc whitish, externally horn-colour or 

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

 across ; excipulum 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, apex narrowed, base rather stout, 8-spored ; spores 

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

 acute, hyaline, smooth, 3-septate, rarely 5-septate, straight or 

 very slightly curved, 28-33 x 3-4 p.; paraphyses 3-4 /JL 

 thick, hyaline, almost cylindrical. 



Peziza ( Mollisia) filispora, Cooke, Grev., iii. p. 66. 



Belonium filisporum, Sacc., 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 expanding and becoming quite plane, but the- 

 margin slightly raised and narrowly incurved when dry; 

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

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

 blackish brown, smooth, -1^- mm. across; cortical cells poly- 

 gonal, brown, 1012 /z diameter, passing into parallel, septate, 

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

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

 21-25 X 6-7 p.; paraphyses cylindrical, about 3 //, thick. 



Peziza lacmtris, Fries, S.yst. Myc., ii. p. 143. 



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



Peziza sdrpi, Kab., Herb. Myc., n. 730; Elv. Brit., n. 183. 



On dead stems of Scirpus, Juncus, Arundo, &c. 



Specimen in Fries', 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 3-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 



