34 PLANTS BAKERIAN^E. 



MYCOSPH^ERELLA IRIDIS (Aud.) Schroet. (Sphserella) in 

 Engl. & Prantl. i. 425. On dead leaves and stems of Iris 

 Missouriensis, Chicken Creek, 9,000 feet. July 7, n. 1096. 



MYCOSPH^ERELLA TASSIANA (DeNot). Johans. in Engl. 

 & Prantl. Slide Rock Canon, 11,000 feet, July 2, on 

 Festuca, n. 1098. 



PLEOSPORACEJE. 



OPHIOBOLUS CASTILLEI^E n. sp. Spots none; perithecia 

 scattered, finally erumpent, black, 200-250^; asci clavate, 

 short-stipitate, 90-120xl2/u.; paraphyses flexuous, thread- 

 like; ascospores yellowish brown, guttulate, 50-5 5x5/*, 

 nearly straight in the ascus. 



On dead steins of Castilleia confusa, Greene, Mt. Hesperus, 

 10,000 feet. June 30. Also common 011 Bob Creek, n. 1095. 



OPHIOBOLUS FESTUCLE n. sp. Spots black, 1mm long, 

 mostly on the upper half of the leaf; perithecia immersed, 

 finally rupturing the epidermis, 200-250/x; asci broadly 

 clavate, short-stipitate, 110-130x20-25//-; paraphyses nu- 

 merous, coiled at the apex; ascospores very slender fusiform, 

 guttulate, 40-50x3-4/x. 



No. 361, on dead leaves of Festuca, Chicken Creek, 9,500 

 feet, July 6. 



PLEOSPORA BALSAMORRHIZ^E n. sp. Perithecia scattered, 

 at length partially erumpent, somewhat fibrillose below, 

 glabrous and depressed above, 300-400/*, ostiolum short, 

 conical; asci 4-8, broadly clavate or obovate, 200-250x 

 70-80/x; ascospores 8, inordinate, each surrounded by a yellow 

 gelatinous coat, 7-septate, constricted at each septum, but 

 more deeply at the center, each cell 2-4 times vertically 

 divided, quite variable in size, in the same perithecium from 

 60x28/x to 38xl6/x, averaging 45x22/x. 



