346 



7-septate, with usually partial longitudinal septa, golden-brown, 55-65, 

 X 26-30 fi. 



On Carex scirpoidea, C. supina, I/uzula arctica, L. confusa, 

 and Aira alpina, Greenland. 



PI. Frangulse, Fckl. Symb. p. 133. 



Exsicc. Fckl. F. Rh. 1767.— Thum. F. Austr. 482? 



Perithecia gregarious on bleached spots, about as large as those 

 of PI. Tierbarum, covered by the epidermis, black, globose, wrinkled 

 when old, the conical, minutely perforated ostiolum erumpent. Asei 

 cylindrical, short-stipitate, 8-spored, 1 20-1 25 x 24^26 ;u. Sporidia 

 biseriate, oblong, narrowed at the ends, constricted in the middle, gen- 

 erally 7-8-septate, with an imperfect, longitudinal septum, yellow- 

 brown, 35-39 X 10-12 [JL. 



On twigs oi Rhamnus Californica, California (Harkness). 



PI. Salsolae, Fckl, Symb. p. 131. 



Exsicc. Fckl. F. Rh. 814. 



Perithecia scattered, at first covered, finally free, globose, black, 

 floccose below, bare above, crowned with a broad papilla, 300-320 fi 

 diam. Asci oblong, sessile or short-stipitate, 8-spored, 100-115x26 p.. 

 Sporidia biseriate, ovate-oblong, broadest above the middle, 7-sep- 

 tate, constricted at the septa, more strongly so at the middle one, with 

 1-2 (generally imperfect) longitudinal septa, golden yellow, 28-30 x 

 11-12 p. 



On Salicornia herbacea, California (Harkness). 



PYRENO'PHORA, Fr. 



Summa Veg. Scand. p. 397, Emend. Sacc. Syll. II, p. 277. 



Perithecia subcuticular-erumpent, globulose, black, bristly or 

 hairy, sclerotoid or coriaceo-membranaceous, otherwise as in Pleos- 

 pora. 



Pyr. fenestrata, Pk. Bull. Torr. Bot. Club, XI, p. 28. 



Perithecia 280-370 p diam., depressed, at first covered by the 

 epidermis, finally erumpent and free, clothed with a few straight, 

 divergent, black sets. Asci fugacious. Sporidia oblong, fenestrate, 

 deeply colored, black in the mass, 40-50 x 18-22 //, about 7-septate, 

 generally constricted in the middle. 



On dead stems of herbs, Utah. 



