1894.] NATURAL SCIENCES OF PHILADELPHIA. 385 



Podosporiella E. & E., n. gen. of Phczostilbece PhragmosporcB . 



Stroma cellular, soft, not carbonaceous, short-cylindrical. Hyphse 

 short, simple, arising from all parts of the stroma. Conidia terminal, 

 oblong or cylindrical, brown, 2- or more-septate. 



Differs from Podosporiuvi in its simple, cellular stroma (stipe). 



Podosporiella humilis E. & E. 



On leaves of Garrya Veitchii, Echo Mt., Cala., July, 1894 

 (Prof. A. J. McClatchie, No. 736). 



Spots orbicular, brown, with a definite, dark margin 2-4 ram. 

 diam. Stroraata hypophyllous, scattered on the spots, black, short- 

 cylindrical, or conic-cylindrical, about 1 mm. high and 2 mm. thick, 

 of membrauaceo- cellular structure. Hyphje spreading on all sides 

 from the stroma, pale brown, simple, continuous, 15-20x4—5/-'., 

 bearing the terminal, solitary, oblong-cylindrical, pale-brown, uni- 

 septate at first, then 2-4- septate, 15-27 x 6-7,a conidia. 



Illosporium csespitosum E. & E. 



On rotten wood, Nuttallburg, West Va., Dec. 1893 (L. W. 

 Nuttall, No. 231). 



Sporodochia globose, 100-110/'. diam., cespitose, forming tufts 

 about 1 mm. diam. Hyphoe 6-8// thick, branched, the branches 

 curved or tortuous. Conidia globose or ovate 6-12/7. diam. 



Differs from I. coccinellum Cke. in its color, and larger, cespitose 

 sporodochia. 



Illosporium album E. & E. 



On cypress bark, Louisiana (Langlois, No. 284). 



Sporodochia gregarious, milk-white, ovate, 140-160x100-110/'. 

 Hyphte imperfectly defined, free and mostly curved above, united 

 below into a coarsely cellular, mass. Conidia peripherical, sub- 

 globose, 8-10// diam. 



Differs from I. palUdxim Cooke, in its smaller sporodochia, imper- 

 fectly defined hyph?e, and milk-white color. 



Trichaeg'um nodulosum E. & E. 



On dead leaves of Carex Fraseri, Nuttallburg, West Va. , Feb. 



1894 (L. W. Nuttall, No. 333). 



Erumpent, tufted, becoming subeffused, black, tufts gregarious 

 forming subvelutinous patches 2-4 mm. across, or when standing 

 singly, the hyphje and conidia forming a compact mass, 5-I mm. 

 diam., and resembling somewhat the sorus of a Puecinia. Hyphse 

 simple, sparingly fasciculate, brown, septate, often swollen at the 

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