353 



L. olivsespora, (B. & 0.) 



Sphcxria olivcBspora, B. & C. Grev. IV, p. 14S. 

 Leptosphceria oHvcBspora, Sacc. Syli. 3170. 

 Heptameria olivcespora, Cke. Sj'ii. 4960. 



Perithecia covered by the cuticle, but rather prominent, marked 

 ill the center with the black ostiola. Asci linear. Sporidia oblong, 

 pointed at eacii end, 3-septate, about four times longer than broad. 



On dead limbs of Cornusjlorida, South Carolina. 



L. Fraxini, E. & E. Journ. Mycol. Ill, p. 44. 



Spots amphigenous, rusty below, dirty white above, with a rusty 

 brown border, orbicular, small (1 mm.) or elongated (2-3x1 mm.). 

 Perithecia black, epiphyllous, few, small (75 /i), erumpent, indistinctly 

 pierced above, and with a rudimentary mycelium around the base. 

 Asci clavate-cylindrical, 55-70 X 8-10 [i. Sporidia biseriate, fusoid, 

 somewhat curved, nucleate, becoming 3-5-septate (mostly 4-septate), 

 constricted at the middle septum when mature, and slightly constricted 

 at the others, 20-25 x 3|-4 ii. 



On living leaves of Fraxinus Americana, Columbia, Mo. (B. T. 

 Galloway). 



L. borealis, E. & E. (in Herb.) 



Perithecia scattered, erumpent, |-| mm. diam., the lower part 

 sunk in the wood, the apex raising the surface into flattish pustules 

 which are pierced in the center by the papilliform ostiolum. Asci 

 subcylindrical, 150-170 x 8 fi. Sporidia uniseriate, oblong, 3-septate, 

 not constricted, 18-22 x 5-7 /i, pale brown, becoming darker. 



On decorticated Salix, Helena, Montana (Kelsey). 



L. fuscella, (B. & Br.) 



Sphmriafuxella^ B. & Br. Brit. Pungi, No. 636, tab. XI, fig. 20. 

 Leptospharia fuscella, Ces. & De Not. Schema, p. 6a. 



Perithecia scattered, covered, subglobose, slightly depressed, rais- 

 ing the epidermis into little pustules. Asci cylindrical, 100 x 9-10 ,«. 

 with a short, thick stipe. Sporidia obliquely uniseriate, oblong-ellip- 

 tical, rounded at the ends, sometimes slightly curved, 3-septate and 

 somewhat constricted at the septa, olivaceous, 15-17 x 9 fi. 



On dead stems of Rubus strigosiis, Greenbush, N. Y. (fide Peck). 



L. platanicola, (Howe). 



Spharia platanicola, Howe Bull. Torr. Bot. Club, V, p. 43. 

 LsptospJiaria platanicola, Sace. Syll. 6130, Cke. Syn. 4276, 4760. 



Perithecia globose-conoid, erumpent. Asci cylindrical or sul>- 

 45 



