679 



partly across the perithecium, finally rimose-dehisceiit. Asci at first 

 globose, at length obovate, 15-22 x 12 /i. Sporidia inordinate, obovate, 

 nniseptate, hyaline, 8-12x3-3| [i (14x4''/i, Phil. & Hark.). 



On the under side of leaves of Quercus agrifoUa, California 

 (Harkness). 



A. culmigenum, Ell. Bull. Torr. Bot. Club, VIII, p. 65. 



Perithecia superficial, linear, straight or curved, slender, J-1 mm. 

 long, but so narrow as scarcely to be visible to the naked eye ; often 

 with a sparing fringe of mycelium around the base; lips connivent, 

 closed or nearly so, and forming only a slight ridge along the crest of 

 the perithecium. Asci obovate, 12-15 x 10 fx, paraphysate, sometimes 

 nearly globose and then only 10-12 fi diam. Sporidia inordinate, 

 8 in an ascus, ovate, yellowish-hyaline, uniseptate and slightly con- 

 stricted, 5-6 x 2-2^ ^u. 



On basal sheaths of old, dead Andropogon; common around 

 Newfield, N. J. 



Readily distinguished from A. Pinorum and from A. vaguni, 

 Desm., by its obovate asci and narrower perithecia. 



A. subconflnens, Pk. 28th Rep. N. Y. State Mus. p. 70. 



Perithecia small, numerous, thin, scattered or subconfluent, or- 

 bicular, elliptical or elongated, black. Asci oblong. Sporidia oblong- 

 clavate, hyaline, 8-10 fi long. 



On dead stems of herbs, New York State (Peck). 



Nothing is said of the mode of dehiscence. 



** Sporidia uniseptate, brown {Lemhosia). 

 A. liturae, Cke. Grev. XII, p. 38. 



Lembosia Lilura, Sacc. Syll. IX, p. 1106. 



Bpiphyllous. Spots orbicular, brown. Perithecia linear, curved 

 or straight, seated on the spots; lips connivent. Asci saccate. Spo- 

 ridia biglobose, uniseptate, brown, 7| x ^ [i. 



On leaves of Quercus aquatica, Texas (Ravenel). 



A. csespitosum, E. & E. Journ. Mycol. I, p. 151. 



(Not Aylographum ccBspitosum, Cke. Grev. VIII, p. 95). 

 Lemhosia caspitosa, Sacc. Syll. IX, p. 1107, 



Growing in small (1 mm.), suborbicular clusters, on a subcrustose, 

 slightly prominent, black stroma, presenting the general appearance of 

 an enimpent SphcBria. Perithecia minute {I mm. or less in length). 



