TOO 



the specimen. The spec, labeled H. gramineum, Fr., (Xo. 2108), is 

 also some indeterminable, sterile thing. 



H. Polygonal!, Schw. Syn. N. Am. 2115. 



This is V ermicularia Polygonati, Schw. Syn. N. Am. 1847. 



H. Osiiiiindft, Schw. Syn. N. Am. 2113, is Leptostroma litigiosum, 

 Desm. 



H. Pteridis, Schw. Syn. N. Am. 2114, is Leptostromella filicina, 

 Snc'c. Syll. Ill, p. 660, (Cryptosporium filicinum, B. & C. Grev. II, 



p. 84.) 



H. saniarae, Fr. (2112). 



This spec, is apparently Phoma Samararum, Desm., but entirely 

 sterile. 



H. rimincola, Schw. Syn. N. Am. 2086. 



The specimen has the appearance of some undeveloped Dothidea, 

 ;md evidently is not a Hysterium. 



H. Sambiici, Fr. (2098). 



The specimen can not be a Hysterium; it is apparently some 

 undeveloped sphseriaceons fungus, and is without fruit of any sort. 



H. stictoideum, C. & E. Grev. VII, p. 7. 



Exsicc. EH. N. A. F. 571. 



This is Stictis hysterina, Fr. 



OSTREION,* Duby. 



Mem. sur la Tribu des Hysl. p. 21. 



Perithecia conchiform, superficial, subpedicellate, longitudinally 



striate. Asci large, 4-spored, paraphysate. Sporidia very large, fusoid 

 multiseptate, colored. 



0. Amerieannm, Duby, 1. c. p. 22, tab. I, fig. 1. Cooke in Grev. 

 IV, pi. 67. 



Scattered, black and shining, obsoletely transversely striate, 

 shaped like an oyster-shell, margin incurved. Asci cylindrical, 350- 

 400 x 30 ft, 4-spored. Sporidia uniseriate, broad-fusoid, constricted in 

 the middle, opake, reddish-brown, 12-20-septate, 90-100x25-27^. 



*Natne changed from Ostreichnion. 



