345 

 PI. papaveracea, (I)e Not.) 



Cucurbitaria papaveracea, De Not. Sfer. Ital. p. 62. 

 Pleospora papaveracea, Sacc. Syll. 3718. 

 Exsicc. Rehm Asc. 736. 



Perithecia scattered or two or three together, superficial, with a 

 flat, sessile base, globose, somewhat collapsed at the apex, coriaceous, 

 black, obtusely papillate. Asci cylindric-clavate, attenuated below, 

 8-spored, about 100 x 10 p. paraphysate. Sporidia uniseriate or partly 

 biseriate, elliptical or oblong-fusoid, straight, 3-septate and constricted 

 at the septa, the second and generally the third cell divided by a longi- 

 tudinal septum, yellow, becoming brownish, 18-25x7-8 p. 



On dead stems of Papaver nudicaulis, Tasiusak, Greenland. 



PL macrospora, Schrot. Nord. Pilze, p. 15. 



Perithecia erumpent, seriately-gregarious, globose-depressed, 250- 

 300 p. diam., collapsing, black, smooth and globose, with minute, papil- 

 liform ostiola. Asci cylindric-clavate, attenuated below, short-stipitate, 

 150-170x24-26 p, 4-8-spored. Sporidia uniseriate, ellipsoid; in the 

 4-spored asci 35-45 x 13-17 p, in the 8-spored, 30-33x9-10 p, 3-sep- 

 tate, one or two of the inner cells longitudinally divided, yellow-brown. 



On Hierochloa alpina, Christianshab, &c, Greenland. 



PL heterospora, De Not. Sfer. Ital. p. 76, tab. 81. 



Perithecia scattered, small, punctiform, sphaeroid, black, with a 

 round opening above, projecting through the fissured epidermis, papil- 

 lose under the lens, texture of dark, round, turgid cells, soft when 

 moistened. Asci thick-walled, 8-spored, attenuated upwards, mostly 

 curved, oblong, variable in size. Sporidia oblong or fiddle-shaped, 

 dark brown, hardly translucent, 9-11-septate, densely tessellate-muri- 

 form, 25-30x10-12/;. 



On Carex supina. Sarkak, Greenland. 



PL Elynse, (Rab.) 



Clathrospora Elynce, Rab. in Hedw. I, tab. XV. fig. 3. 

 Pleospora Elynce, Ces. & De Not. Schema, p. 44. 

 Kxsice. Rabh-Winter F. Eur. 2S61. 



Perithecia gregarious, covered by the epidermis, depressed-spher- 

 ical, the distinct papilliform ostiolum piercing the epidermis, black, 

 smooth and glabrous, about 250 p diam. Asci oblong, short-stipitate. 

 8-spored, thickened at the apex and broadly rounded, 140-1 65x35- 

 40 p, paraphysate. Sporidia 2-3-seriate, oblong, rounded at the ends, 

 44 



