1893.] NATURAL SCIENCES OF PHILADELPHIA. 167 



Gloeosporium davisii E. & E. 



On pods of Vicia americana, Berry ville, Wis. July, 1890. 

 (Davis, No. 927.) 



Occupying small (1-2 mm.), dead spots on the pods. Acervuli 

 innate, erumpent in small, pale rose colored pustules. Conidia 

 oblong-elliptical, hyaline, continuous, 5-8 x 3-4//. 



Distinguished from G. vicice E. & E., as well as from G. legumi- 

 nis 0. & H., by its much smaller conidia. 



Gloeosporium americanum E. & E. 



On leaves of Vicia americana, Berry ville, Wis. July, 1892. 

 (Davis, No. 928.) 



Spots amphigenous, dull green, 2-3 mm. diam., suborbicular and 

 rather indefinitely limited, only two or three on a leaf. Acervuli 

 innate, about 80// diam., pale rose color, erumpent above. Conidia 

 oblong, obtuse, 12-16 x 3-3*//, on basidia of about the same length. 



Comes nearest G. kurzianum Niessl, but a comparison with species 

 of that species in Rab. F. Eur. shows the habit to be quite different. 

 GL vicice, Fauntrey and Roum. has conidia, 16 x 12/./. 

 Gloeosporium ribicolum E. & E. 



On fruit of Eibes (English goosebery, cult.), Wilmington, Del. 

 June, 1892. (A. Commons, No. 1,961.) 



Acervuli minute, numerous, crowded, pale, soon erumpent and 

 subconfluent in orbicular patches § cm. across and of a pale orange 

 color. Spores oblong, 7-12x3-31//, on stout, densely fasciculate 

 basidia about 20// long. Seems most nearly allied to G. phomoides 

 Sacc. 



Gloeosporium caryae E. & E. (N. A. F., 2783.) 



On leaves of Carya alba, London, Canada. (Dearness.) 



Spots amphigenous, suborbicular, indefinite, brown, 1-2 cm. diam. 



Acervuli hypophyllous, numerous, 80-150// diam. Sporules oblong, 



continuous, hyaline, 7-1 Ox 1-1?//. 



Cylindrosporium phaceliae E. & E. 



On leaves of Phacelia sericea, Basin, Montana. July, 1892. 

 (Kelsey, No. 1.) 



Amphigenous. Acervuli minute, buried, numerous, the exuding 

 conidia making the surface of the leaf white-farinose. Conidia 

 oblong or cylindrical, variable in length (15-40 x 3-3*//.) 



