352 



scarcely visible. Asci subclavate, sessile, 8-spored, 136x27 /i. Spo- 

 ridia biseriate, oblong, straight, 34 x 14 p, ends rounded, 3-septate and 

 constricted at the septa, more deeply so at the middle septum, pale, at 

 length brownish. 



On dry leaves of Andromeda tetragona, in Labrador and Green- 

 land. 



L. hyperborea, (Fckl.) 



Pleospora hyperborea, Fckl. 2d Deutsch Nordpolfahr. 2, p. 92 and Oud. Contr. 



Fl. Myc. Now. Semi. p. 153, tab. II, fig. 9. 

 Leptosphceria hyperborea, Sacc. Syll. 6673. 



Perithecia seated on the dry upper surface of the leaves, scattered, 

 punctiform, semiimmersed, surrounded below by the slightly raised, 

 gray substance of the leaf, the free part obtusely-conical, pierced above 

 and very black. Asci oblong-ovate, attenuated at each end, 8-spored, 

 60x24 fi. Sporidia crowded in the middle part of the asci, oblong, 

 ends obtuse, straight, 3-septate, constricted at the middle septum, 

 24 x 8 //, yellow-brown. 



On leaves of Andromeda tetragona, in Greenland. 



L. Ceanothi, (Cke. & Hark.) 



Sphceria Ceanothi, Cke. & Hark. Grev. XIII, p. 19. 

 Leptosphceria Ceanothi, Saec. Syll. 6662, Cke. Syn. 4292. 



Perithecia gregarious, minute, subglobose, covered by the epi- 

 dermis. Ostiolum short, punctiform. Asci short-clavate, 8-spored. 

 Sporidia sublanceolate, triseptate, yellowish-hyaline, 16-18 x4J /i. 



On small twigs of Ceanothus, California (Harkness). 



L. odora, (Cke. & Hark.) 



Sphceria odora, Cke. & Hark. Grev. 1. c. 

 Leptosphceria odora, Sacc. Syll. 6666, Cke. Syn. 4296. 



Perithecia scattered, of medium size, globose, black, sunk in the 

 bark and covered by the epidermis. Ostiolum punctiform. Asci 

 clavate, 8-spored. Sporidia biseriate, lanceolate, at first uniseptate, 

 then 3-septate, yellowish-hyaline, 22-25 x 5 ji. 



On branches of Umbellularia, California (Harkness). 



L. bicuspidata, (Cke. & Hark.) 



Sphceria bicuspidata, Cke. & Hark. 1. c. 

 Leptosphceria bicuspidata, Sacc. Syll. 6649. 



Perithecia scattered, covered, innate, subprominent, globose, black. 

 Ostiolum short. Asci clavate, 8-spored. Sporidia fusiform, 3-septate, 

 constricted, brown, with a hyaline, cuspidate appendage at each end r 

 25 x 8 fi without the appendages. 



On twills of BaccJiaris, California. 



