42 THE WEST VIRGINIA FLORA 



TRICHAEGUM Corda. 

 T. NODULOSUM E. & E., Proc. Phila. Acad., 1894, 385. 



TYPE HABITAT: On dead leaves Car ex Fraseri, Feb. n, 

 1894 (Nuttall, discov. 1373, 333). 



Erumpent, tufted, becoming subeffused, black, tufts gre- 

 garious, forming subvelutinous patches 2 to 4 mm. across, 

 or when standing singly the hyphse and conidia forming a 

 compact mass .5 to I mm. diameter, and resembling some- 

 what the sorus of a Puccinia. Hyphse simple sparingly fasci- 

 culate, brown, septate, often swollen at the septa, about 4 /x 

 thick and 200 to 300 /x long. Conidia near the base of tthe 

 hyphse, at first elliptical, yellowish-hyaline, uniseptate, 8 to 

 10 x 6 to 7 /x, soon becoming 4 to 6-septate, muriform and 

 opaque, 10 to 25 /x diameter, subglobose, obovate, or elliptical. 



SEPTOSPORIUM Corda. 



S. EQUISETI PECK, Rep. State Bot. N. Y., 1892, 25. 



TYPE HABITAT : Tips of living leaves Equisetum arvense, 

 Doddridge Co., near Center Point,, and Monongalia Co., on 

 College campus, Morgantown (Millspaugh, discov. 1891). 



Hyphae forming minute tufts, the fertile very short, bear- 

 ing acrogenous spores, the sterile longer, septate, colored; 

 spores elliptical, usually with three transverse septae and 

 one or two longitudinal ones, colored, .001 in. long, .005 in. 

 broad. 



ALTERNARIA Nees. 



A. BRASSICAE NIGRESCENS Pegl. 



On Musk-melons, Ohio, near Elm Grove (Sheldon). 



SARCINELLA Sacc. 



S. HETEROSPORA SaCC. 



On Ccrcis Canadcnsis, Oct. 16, 1894 (Nuttall, 1726, 610). 

 STILB ACE AE. 



STILBUM Tode. 



S. MAGNUM Peck. 



In cracks of bark, Nov. .6, 1893. Spores 2.5 x 1.25 /.. 

 (Nuttall, 1278, 225). 

 S. FLAVIPES Peck. 



On dead driftwood Platanns Occident alls, Dec. 12, 1894 

 (Nuttall, 1767). 



S. ERYTHROCEPHALUM Ditm. 



On dung of Rabbit, Jan. 18, 1894 (Nuttall, 1345, 304). 



