Central American Pyrenomycetes. 397 



mosing-prostrate hyph^, with small, 2-celled, capitate hypho- 

 podia about 12x7-8//, the upper cell rounded, often oblique, 

 and an abundance of black, straight, simple bristles about 

 200-2 70, a long, 6-7// thick, sparingly and obscurely 3-5-sep- 

 tate, arising from the prostrate threads. Perithecia ovate, 

 small, about 100 // dia., bald or with a few short bristles simi- 

 lar to those from the mycelium. Asci obovate, sub-sessile, 

 about 60-70 X 15-20 «, 2-spored. Sporidia oblong-cylindrical, 

 4-septate, scarcely or finally slightly constricted, brown, nar- 

 rowed towards each end, 25-34x11-14;". 



Differs from M. microsfora Pat. & Gail., in its anastomos- 

 ingly branched mycelium which lacks the mucronate hypho- 

 podia, in its more slender and more abundant bristles, and in 

 its sporidia more attenuated at the ends. M. -polytricha Kalch. 

 & Cke., has longer, flexuous bristles and longer sporidia not 

 attenuated at the ends and has both capitate and mucronate 

 hyphopodia. 



Parasitic on the leaves of guava, Jan., '93, San Carlos. 

 (C. L. S.) 



II. HYPOCREACE^. 

 Hypocrea bicolor E. & E.^ J. Myc. IV, p. 58. 



On decaying wood, Ometepe. (B. S.) 

 H. Fibula Dc Not. 



Stroma cervine becoming fuscous, convex-disk-form, cen- 

 trally adnate below, with obtuse margin, fleshy within. Peri- 

 thecia quite numerous, small, globose, discrete, separating 

 from the stroma, a little prominent at the apex, dehiscing by 

 a minute, rotund pore. Asci, cylindrical, very plentiful. 

 Sporidia didymous, globose joints, equal. 



On trunks of trees in South America. [Sacc. Syll. II,p. 527.] 



A few immature specimens on a fallen tree, Castillo Viejo. 

 (C. L. S.) 



H. HiRSUTA E. & E. n. sp. 

 Stromata gregarious or crowded, sub-hemispherical, coriaceo- 



