228 FUXG US-FLORA. 



Closely allied to B. pidhim, but known by the elliptical 

 spores with obtuse ends. 



Belonidium vexatum. De Notaris, Prof. Disc., 

 p. 380 ; Sacc., Syll., viii., n. 2079. 



Ascophore stipitate, clip-shaped then expanding, when 

 dry the mouth is contracted and externally more or less 

 distinctly wrinkled, pallid or Avith a pink tint, stem short, 

 stout, sometimes almost absent, about 1 mm. high and broad; 

 oxcipulum composed of hyaline, slender, intricately interwoven 

 hyphae, becoming parallel towards the surface, and running 

 out into slender, free hyphae of various lengths to form 

 the irregular margin ; asci large, cyliudric-clavate, apex 

 slightly narrowed, pedicel short, stout, 8-spored ; spores 

 irregularly 2-seriate, cyliudric-oblong, ends rather obtuse, 

 3-septate, hyaline, straight or slightly curved, 28-35 X 4 p.; 

 paraphyses simple or sometimes forked from near the base, 

 slender, hyaline, tips slightly thickened. 



Belonidium culmicolum, Phil., Brit. Disc., p. 148, pi. 5, 

 fig. 29. 



On dead leaves of various grasses. 



Specimen from "Rab., Fung. Eur., n. 519, examined! 



Belonidium pullum. Phil. & Keith, Grev., vi. 

 p. 75, pi. 97, figs. 8-10 (fig. 11 is inaccurate); Phil., Brit. 

 Disc., p. 151. (figs. 30-33, p. 156.) 



Sessile attached by a narrow point, at first almost closed, 

 soon expanding but the margin remaining slightly raised 

 and incurved ; disc watery grey or brownish, externally 

 smooth, brown, - 1^- mm. across; excipulum formed of inter- 

 woven, thin hyphae that pass into clavate, septate, brown 

 tips, the external cells forming a parenchymatous cortex ot 

 brown cells 8-10 p. diameter, and running out at the margin 

 into parallel, septate, paler hyphae; asci cylindric-clavate,. 

 apex narrowed, 8-spored, spores narrowly fusiform, ends 

 rather acute, becoming 3-septate, hyaline, smooth, irregu- 

 larly 2-seriate, 25-30 x 5 p.; paraphyses slender, 2 p. thick, 

 cylindrical. 



Belonium pullum, Sacc., Syll., viii. n. 2041. 



On sheaths and leaves of Poa, Typha, and Phragmites. 



Authentic specimen from Phillips examined. 



Almost indistinguishable under a lens from B. lacustre. 



