Central American Pyrenomycetes. 413 



species rather closely related to A\ -polymor^ha. [Sacc. Syll. 



I, P- 323-] 



The Nicaraguan specimens do not have a varnished stipe. 



Camp Menocal (about 15 miles from Grey town.) (B. S. & 



C. L. S.) 



X. GUYANIENSIS Mout. 



Simple. Club-clavate-cylindrical, brown, solid, white inside, 

 about 2)4 cm. long and %-% cm. thick, smooth, obtuse and 

 rounded at the apex, gradually narrowed below into the con- 

 colorous, smooth, stout stipe nearly as long as the fertile head. 

 Perithecia large (i mm.); sub-globose, peripherical, entirely 

 buried, ostiola erumpent, papilliform, situated in the center of a 

 depressed, dark-colored, circular disk Yz-Y^ mm. across. Asci 

 slender, 150x5-6/^, p. sp. 80-90 // long, with abundant para- 

 physes. Sporidia 8 in an ascus, uniseriate, oblong-fusoid, 

 slightly curved, dark, obtuse, 15-20x3-4/'- 



The ostiola at hrst raise the cuticle into a distinct papilla 

 which falls off with a circumscjssile dehiscence, leaving the 

 circular disk aforesaid. 



On dead wood, Ometepe. (B.S.) Castillo Viejo. (C.LS.) 



X. PUMiLA (/^r.) Sacc. 



SphcB7'ia pumila Fr., in Linna?a, 1830, p. 538. Xylaria ^11- 

 mila, Sacc. Syll. I, p. 313. 



Small, 3^-2 cm. high (including the short, 1-2 mm. stipe), 

 3-4 mm. thick; obtuse at the apex, black and colliculose- 

 roughened from the large (i-i)^ ,//), prominent, sub-globose, 

 perithecia. Asci clavate-cylindrical, 150 x 8-9 u, p. sp. 80-90," 

 long, paraphysate, 8-spored. Sporidia uniseriate, oblong- 

 fusoid, slightly curved or inequilateral, dark, 18-25 x6-7,i/. 

 Stroma dull white or rufous inside, dull black and granulose- 

 squamulose outside. The specimens agree perfectly with 

 South American specimens from Mr. Gaillard, but they are 

 not glabrous as in the original diagnosis, though they ma}' 

 become so with agfe. 



