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. 11, 

 1894 {Nuttall, discov. i373> 333)- 



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

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

 or when standing singlji- the hyphse and conidia forming a 

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

 what the sorus of a Puccinia. Hyph^ simple sparingly fasci- 

 culate, brow.n, septate, often swollen at the septa, about 4 /* 

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

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

 10 X 6 to 7 fi, soon becoming 4 to 6-septate, muriform and 

 opaque, 10 to 25 fi diameter, subglobose, obovate, or elliptical. 



SEPTOSPORIUM Corda. 



S. Equiseti Peck, Rep. State Bot. N. Y., 1892, 25. 



Type habitat : Tips of living leaves Eqiiisetmn arz'ense, 

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

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



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

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

 spores elliptical, usually with three transverse septse and 

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

 broad. 



ALTERNARIA Nees. 



A. Brassicae nigkescens Pegl. 



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



SARCINELLA Sacc. 

 S. heterospora Sacc. 



On Cercis Canadensis, Oct. 16, 1894 (Nnttall, 1726, 610). 



STILBACEAE. 



STILBUjM Tode. 

 S. MAGNUM Peck. 



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

 (Nuttall, 1278,, 225). 

 S. FLAviPES Peck. 



On dead driftwood Platanns occidcntalis, Dec. 12, 1894 

 (Nuttall, 1767). 

 S. erythrocephalum Ditm. 



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



