304 



Asci sublanceolate. Sporidia oblong, simple, colorless, 7 /i long. 

 On dead steins of herbs, Greenbush, N. Y. (Peck). 



P. Cupressi, (B. & C. 



Sphceria Cupressi, B. & C. Grev. IV, p. 148. 

 Physalospora, Cupressi, Sacc. Syll. 1679, Cke. Syn. 4091. 



Perithecia covered by the cuticle, but prominent, with a distinct 

 ostiolum. Asci clavate. p. sp. 75 x 20 /i. Sporidia inordinate, inequi- 

 laterally elliptical, hyaline, 20-23 x 10 ft. 



On limbs of Cupi^essus thyoides, Carolina (Ravenel). 



The measurements of asci and sporidia are taken from a spec. com. 

 by Farlow from Herb. Curtis. 



P. ceanothina, (Pk.) 



Sphceria ceanothina, Pk. 29th Rep. p. 62. 



Physalospora ceanothina, Sacc. Syll. 1692, Cke. Syn. 4093. 



Perithecia scattered or rarely two or three crowded together, 

 smooth, subglobose. Ostiola piercing the epidermis, somewhat rugged, 

 often curved or deformed. Sporidia crowded or biseriate, oblong, 

 obtuse, sometimes curved, hyaline, 12-15 //long. 



On dead steins of Ceanothus Americanus, New York. 



P. Lndwigise, (Cke.) 



Sphceria Ludwigice, Cke. Hedw. 1868, p. 39. 

 Physalospora Ludwigice, Sacc. Syll. 1720. 

 Phomatospora Ludwigice, Cke. Syn. 4357. 



Gregarious. Perithecia covered by the blackened and raised 

 epidermis. Asci clavate. Sporidia biseriate, elliptical or pyriform, 

 hyaline, continuous, 25 x 10 p.. 



On stems of Ludwigia, So. Carolina. 



P. aurantia, E. & E. in Ell. & Evrht/s N. A. F. 2d Ser. 2355. 



(Plate 27) 



Perithecia scattered, buried in the parenchyma of the leaf, sub- 

 oblong, 175-200x130-150 /i, of a fine orange color, which is readilj 

 seen in a section of the leaf, the surface of which is uniformly black- 

 ened and slightly pustulate from the scarcely erumpent ostiola. As( 

 clavate-cylindrical, 100-110x12-15 /i, with paraphyses. Sporidit 

 uniseriate, oblong-elliptical, granular, hyaline, continuous, 12-22 

 8-9 p. 



On dead leaves of Astragalus pectinatus. Sand Coulee, Montana 

 (Anderson). 



