599 



Stromata scattered, innate, amphigenous, orbicular, about \ mm. 

 diam., black, surface convex and slightly papillose, slightly prominent. 

 Asci stipitate, paraphysate, clavate, p. sp. 75-100 x 18-20 p., 8-spored. 

 Sporiclia obliquely imiseriate or biseriate, elliptical, acutely so at first, 

 but finally more obtuse, greenish-granular, 15-22 x 9-10 a. 



On leaves of Jacquinia, Nicaragua (\Yright). 



A few sporidia were seen with the endrochrome divided in the 

 middle. Described from specc. collected by Wright in Nicaragua. 



** On monocotyledonous plants. 

 Ph. Graminis, (Pers.) (Plate 40) 



Sphtsria Graminis, Pers. Syn. p. 30. 

 Dothidea Graminis, Fr. Summa, p. 387. 

 Phyllachora Graminis, Fckl. Symb. p. 216. 

 Hypopteris Luzultz, Rab. in Bad. Krypt. 335. 

 Pliyllachora Btomi, Fckl. Syinb. p. 216. 



Exsicc. Fckl. F. Rh. 1018, 2264. Kze. F. Sel. 269, 361. Rab. F. E. 533. Rehm Asc. 647. 

 Thum. F. Austr. 176. Sydow, M. March. 84, 86, 254. Desm. PI. Cr. Ed. T, 968. id. 

 . II, 26S. Cke. F. Brit. Ser. I, 678. Ell. N. A. F. 484. 



Stromata scattered or confluent, penetrating the leaf and more or 

 less prominent on both sides, covered by the adnate, black and shining 

 epidermis, of various forms, mostly oblong or lanceolate, black, uneven, 

 rugulose, about 1 mm. long. Ascigerous cells subseriate. Ostiola 

 obscure. Asci short-stipitate, cylindrical, 75-80x7-8 p, 8-spored. 

 paraphysate. Sporidia obliquely imiseriate, ovate, simple, generally 

 with one large nucleus, hyaline, 6-12x4-5 /*. Spermatia (in the 

 young cells) subfalcate, 16 x l|-2 /*, pluriguttulate. 



On living leaves of various grasses; common. 



Ph. Caricis, (Fr.) 



Dothidea Caricis, Fr. Summa Veg. Sc. p. 397. 

 Phyllachora Caricis, Sacc. Syll. 5242. 



Covered, uneven, confluent, black, tuberculose from the astomou-. 

 prominent perithecia. Allied to P. Graminis, but immersed in the 

 unchanged parenchyma of the leaf, the prominent perithecia (cells) dis- 

 tinct, but covered by the blackened epidermis. 



On leaves of Carex Pennsylvania, Albany, X. Y. (Peck;. 



Cooke in Grev. XIII, p. 63, states that the asci are clavate and 

 the sporidia elliptical, continuous and hyaline. 



Ph. Cynodoiitis, Niessl, Xot. Pyr. p. 74. 



Exsicc. Rehm Asc. 377. Rab. F. E. 2241. Thum. M. U. 1067. 



Stromata scattered, suborbicular or subelongated, small, mostly 

 not over J mm., not strongly prominent, black, ascigerous cells smalL 



