331 



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

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

 subglobose, |-| mm. diam., entirely buried except the convex-discoid, 

 erumpent ostiola. Asci cylindrical, about 110x8-10 /i, with stout 

 but evanescent paraphyses. Sporidia uniseriate, oblong-cylindrical, 

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

 coming brown, 18-22 x4|-5^ /z. 



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

 (Langlois). 



D. cupula, (Ell.) (Plate 28) 



Spharia cupula, EU. Am. Nat. March, 1883, p. 317, Bull. Torr. Bot. Club, X, p. 90. 

 Didymosph<Evia cupula, Sacc. Syll. 6112 and 6586, Cke. Syu. 4234. 

 Exsicc. EU. N. A. F. 1338. 



Perithecia scattered, membranaceous, 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|s4|-5i /z. 

 SphcRjia diplospora, Cke., has the same fruit, but the perithecia 

 do not collapse. 



On dry oak leaves {Q. coccinea) still hanging on the limbs, New- 

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

 Phytolacca and Desmodiuvi. 



D. Ceanothi, (Cke. & Hark.) 



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

 Didymospharia 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 /z. 



On twigs of CeaThothus, California (Harkness). 



D. sarm^nti, (Cke. & Hark.) 



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

 Didymosphsria sarmenti, Sacc. Syll. 6574 and Cke. Syn. 42S1. 



Perithecia scattered, covered, subglobose, black, smooth, at length 

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

 ridia elliptical, uniseptate, not constricted, brown, 12x5 /z. 



On "Canary Vine," California (Harkness). 



D. phylWgena, Winter. Journ. Mycol. I, p. 121. 



Perithecia on a round or subangular, determinate, brown spot 



