1893.] NATURAL, SCIENCES OF PHILADELPHIA. 459 



4-5,'/. with 1-2 large nuclei. Basidia slender- cylindrical 15-20 x l£/i. 

 Mass of exuded sporules flesh-color. 



Gloeosporium apocryptum E, & E., Journal Mycol. IV, p 52 var. ramicolumE. 

 & E. {Gloeosporium Neg uudinis E. & E., in Herb.). 



On small dead limbs of Negundo aceroides, near Wilmington, 

 Del. June, 1893. (A. Commons, No. 2084). 



Acervuli covered by the blackened epidermis, variable in size i-£ 

 mm. diam. , round or irregular in shape, pustuliform. Conidia 

 oblong, rounded at the ends, sometimes slightly narrowed in the 

 middle, 12-15x4-6/./-. 

 Harknessia thujina E. & E. 



On inner surface of white cedar bark ( Cupressus thyoides) peeled 

 off and left lying on the ground, Newfield, N. J. Nov. 1893. 



Acervuli buried in the bark, short-elliptical, black, about ? mm. 

 in the longer diameter, opening by a small pore and finally discharg- 

 ing the opake, acutely elliptical, 12-16 x9-ll/>. spores with persist- 

 ent, hyaline pedicels 16-20// long. There is no appendage at the 

 apex of the spore which is merely obtusely pointed. The surface of 

 the bark is only raised into slight pustules which at first are scarcely 

 noticeable. 

 Gloeosporium boreale E. & E. 



On Salixsp. Newfane, Vt. Sept., 1893. (A. J. Grout, No. 43). 



Spots orbicular, large 4-5 mm. diam., brown, soon confluent and 

 occupying the greater part of the leaf which turns light yellow 

 around them. Acervuli numerous, small, hypophyllous. Conidia 

 abundant, clavate-cylindrical, hyaline, continuous, 7-12xlJ-2// 

 issuing in short light-colored cirrhi which soon become amber colored. 



Resembles G. Salicis West., but that species is epiphyllous and 

 the conidia (sec. Cavara) are 14-16x8//. 

 Gloeosporium Osmundae E. & E. 



On pinnules of Osmunda cinnamomea, Munith, Jackson Co., 

 Mich. Aug. 1893. (G. H. Hicks, No. 1795). 



Acervuli innate, numerous, minute, on yellow-margined, brown 

 spots, discharging the subglobose, 3// conidia, in short, white cirrhi, 

 on both sides of the pinnule. 

 Cylindrosporium Glyceriae E. & E. 



On leaves of Glyceria nervata, Racine, Wisconsin. Aug., 1893. 

 (Dr. J. J. Davis, No. 9327). 



