733 



about J mm. diam., white inside, covered by the epidermis which i^ 

 blackened directly over them and raised into little pustules which are 

 perforated at the apex by the papilliform ostiolum. Asci clavate. p. sp. 

 50-70 x 12-15 //, short-stipitate. 8-spored. with abundant paraphyses. 

 Sporidia biseriate, fusoid -oblong, ends slightly curved while lying iu 

 the asci, 4-nucleate, becoming obtuse and uniseptate near the middle, 

 yellowish- brown, 16-25 x 5-(> u. 



On dead canes of Arundinaria, Louisiana (Langlois, 2338). 



Comes near Metasphceria .viftulritxis, (Cke.i. but sporidia smaller 

 and constantly only 1 -septate D. eumorpha, (B. A: C.). has the peri- 

 theeia seriate ("linear"). 



D. enryasca, Ell. & Uahv. Journ. Mycol. V, p. 67. 



Peritheeia scattered, suberuinpent, minute (80-100 //), perforated 

 above. Asci inequilaterally ovate, sessile, 35-40x12-15 /JL, par- 

 aphysate? Sporidia 2-3-seriate, ovate-oblong, uniseptate, constricted 

 at the septum, rounded at the ends, brown, 12-15 x 3|-5 /JL. The 

 peritheria remain partly covered by the epidermis. 



On dead leaves <,!' /'imis Murrayana, Mt. Helena. Montana 



A lidei>n|| I. 



Page 337. Pleospora laxa, Ell. & Galw., is on Carex xt minium 

 and C. sffj>ff/(.i, and not on grasses. 



Page 350. After Pyrenophora chrysospora, insert- 

 Pyr. pellita, (Fr.) 



Sphczria pellita, Fr. S. M. p. 503. 

 Pleospora pellita , Rab. Herb. Mycol. Ed. II, 749. 

 Pyrenophora pellita, Sacc. Syll. 3846. 

 ]: \sicc. Fckl. F. Rh. 2315. Rab. F. E. 1447. 



Perithccia gregarious, rounded-conical, black, clothed with slen- 

 der, dark brown hairs, or bare above, 300 p. diam., with a fringe of 

 liyphae around the base. Asci long-clavate, gradually narrowed into 

 the stipe, 8-spored, 100-120 x 10-12 t u. Sporidia obliquely uniseriate, 

 oblong, attenuated at each end so as to become broad-fusoid, 3-septate. 

 constricted at the middle septum, 17-21 x9 p, the two middle cell-, 

 or sometimes only one of them, divided by a longitudinal septum. 

 Brachycladium penicillatum, Cda,, is the conidial stage. 



On thistle stems, Bethlehem. Pa. (Scliw.). 



Pyr. trieliostoma, (Fr.) 



Sphczria trichostoma, Fr. S. M. II, p. 504. 

 Pyrenophora trichostoma, Fckl. Syrnb. p. 215. 



Exsicc. Fckl. F. Rh. 904. Rab. Herb. Mycol. 535. Rab. F. E. i85S. Rehrn Asc. iSo, 592. 

 Kze. F. Sel. 268. Sydow, M. March. 98. Plowr. Sph. Brit. 287, 



