331 



broad, surrounded by a greenish-black line which penetrates deeply, 

 the surface also being of a uniform slaty-black. Perithecia scattered, 

 subglobose, J-j mm. diarn., entirely buried except the convex-discoid, 

 ermnpent ostiola. Asci cylindrical, about 110 x 8-10 //, with stout 

 but evanescent paraphyses. Sporidia uniseriate, oblong-cylindrical, 

 rounded at the ends, slightly curved, uniseptate, hyaline at first, Be- 

 coming brown. 18-22x4f-5| /j>. 



On dead culms of Andropogon muricatus, St. Martinsville, La. 

 (Langloisi. 



D. chpnla, (Ell.) ' (Plate 28) 



Sph&ria cupnla, Ell. Am. Nat. March, 1883, p. 317, Bull. Torr. Bot. Club, X, p. 90. 

 Didymosphczria cupula, Sacc. Syll. 6112 and 6586, Cke. Syu. 4234. 

 Exsicc. Ell. N. A. F. 1338. 



Perithecia scattered, niembranaceous, about \ mm. diam., convex- 

 hemispherical when fresh, collapsed when dry, buried, except the 

 papilliform ostiolum, in the parenchyma of the leaf, and covered by 

 the blackened, slightly raised epidermis. Asci subcylindrical, 75x7 //. 

 Sporidia uniseriate elliptical, brown, uniseptate, 9|-ll|x4|-5| /JL. 

 Sph>i'i<i diplospora, Ckc., has the same fruit, but the peritliecia 

 do not collapse. 



On dry oak leaves (Q. coccinea) still hanging on the limb?, New- 

 field. X. J. What seems to be the same has also been found on 

 PJtytolacca and Desmodium. 



D. Ceanothi, (Cke. & Hark.) 



Sphczria Ceanothi, Cke. & Hark. Grev. XIII, p. 19. 

 Didymosphceria Ceanothi, Sacc. Syll. 6587, and Cke. Syn. 4235. 



Perithecia scattered, covered, flattened-globose, black, with a short, 

 papilliform ostiolum. Asci ample, clavate, 8-spored. Sporidia ellip- 

 tical, uniseptate, constricted in the middle, dark brown, 35 x 15 p.. 



On twigs of Ceanotkus, California (Harkness). 



D. sarmeiiti, (Cke. & Hark.) 



Sphtzria sarmenti, Cke. & Hark. Grev. XIII, p. 19. 

 Didymosphizria sarmenti, Sacc. Syll. 6574 and Cke. Syn. 4221. 



Perithecia scattered, covered, subo-lobose. black, smooth, at length 

 flattened. Ostiolum short, punctiform. Asci cylindric-clavate. Spo- 

 ridia elliptical, uniseptate, not constricted, brown. ]*2x>) ,. 



On "Canary Tine," California (Harkness). 



D. phyllogena, Whiter. Journ. Mycol. I, p. 121. 



Peritliecia on a round or sul (angular, determinate. In-own spot 



