:;-! s 



IVrithecia very small, scattered, sn I (superficial, conical, very 

 Mack, dollied at the apex with a few short, rigid. Mack hairs. Asci 

 ovate-oblong, obtuse at each end, somewhat curved, thick-walled. 

 S-s])ored, 112 x -M //. Sporidia imbricate-subbiseriate, oblong-ova ie, 

 obtuse, straight. -l-septate and muriform. constricted in the middle, 

 brown. 34 x 13 //. 



On leaves of Salix Groenlandica, Franz Joseph's Fiord, Green- 

 land. 



Pyr. relicina, Fckl. Symb. p. 215. 



Pleospora polytricha, Tul. Sel. Carp. II, p. 269. 



Perithecia innate-erumpent, sclerotoid, pale within, clothed with 

 scattered, rigid, cuspidate, pluriseptate, black bristles 130-150x10- 

 12 //. Asci clavate, 150-170x35-40 jm, with a short, thick stipe. 

 Sporidia bi seriate, rarely uniseriate, oblong-elliptical, 3-5-septale. 

 with a partial longitudinal septum, pale yellow, 35-46 x 20-30 //. 



On leaves of Triticum repens, Albany, N. Y. (Peck). 



Pyr. calveseens. (Fr.) 



Sphezria calveseens, Fr. Scleroniyc. Suec. Exsicc. No. 401. 

 Sphezria eriophora, Cke. Grev. V, p. 153. 

 Pleospora calveseens, Tul. Sel. Carp. II, p. 266. 

 Pyrenophora calveseens, Sacc. Syll. 3845, Cke. Syn. 5142. 

 Leptospruzria eutypoides, Pk. 38th Rep. p. 105. 



Kxsicc. Fckl. F. Rh. 2152. Rab. F. E). 2216. Rehm Asc. 439. Thum. M. U. 266. Ell. 

 N. A. F. 592. 



Perithecia gregarious, on extensive blackened areas of the stem, 

 superficial, globose or depressed, 250-300 // diam., clothed, especially 

 below, with spreading, black, bristle-like hairs, which finally disap- 

 pear; at length collapsing to plane or concave, with a distinct, papilli- 

 form ostioltim. Asci cylindrical, short-stipitate. 8-spored, 75-110 x 

 10-1 2 //, with abundant paraphyses. Sporidia uniseriate, ovate-oblong, 

 rounded at both ends, often rather narrower below, more or less con- 

 stricted in the middle, 3-septate, with an imperfect, longitudinal sep- 

 tum, 18-22x8-9 fi. 



On dead stems of Chenopodium, Newfield, N. J., and New York 

 State. 



Pyr. ciliata, (Ell.) 



Pleospora ciliata, Ell. Bull. Torr. Bot. Club. VIII, p. 125. 

 Pyrenophora ciliata Berlese Mon. p. 237, tab. XII, fig. 6. 



Perithecia at first covered by the cuticle, but at length partially 

 erumpcnt, 125-175 // diam., hemispherical. Ostiolum large, surround- 



