Jan. 1896. Flora of W. Virginia — Millspaugh & Nuttall. 89 



Hyphae simple, sparingly branched, twisted above as in B. 

 streptothrix or in Streptothrix atra B. & C, brown, 80 to 

 100x3 to 4 ,a, forming numerous small brownish-black tufts, 

 effused or gregarious, on both sides of the leaf. Conidia ellip- 

 tical brown, 5 to 6.5 x 3 to 3.5 11. 



Differs from B. streptothrix (C. & E.) in its much smaller conid- 

 ia and more dwarfish growth. 



B. vulgaris Fr. 



On leaves Afagnolia Fraseri, alt. 2,000 ft., July 12, 1893; on 

 burrs of Xanthium Canadense, Nov. i, 1893; on pedicels of 

 Iponma pandurata, Feb. 17, 1894; on decaying Brassica oleracea, 

 Jan. 18, 1894; on Ciciita maculata, March 18, 1894 {Nuttall, 

 1 1 16). 



HYPHODERMA Fr. 

 H. Desmazieri Duby. 



On living leaves Pinus echinata. Wood Co., near Lockhart's 

 Run [Millspaugli). 



VERTICILLIUM Nees. 



V. osteophilum E. & E. , sp. nov. 



Type habitat: On jaw bone of calf, in woods, Nov. 27, 1894 

 {Nuttall, discov. 1761, 647.) 



Prostrate sterile hypha:; yellowish-brown, distantly septate, 

 rough, 6 to 7 // diameter; fertile hyphae, loosely cespitose, erect 

 septate, smooth, yellowish-hyaline, 7 to 15 p. diameter, the pri- 

 mary branches alternate, and issuing at right angles, bearing- 

 opposite or ternately-verticillate branches, the ulmate division 

 12 to 15 X 4 // 3 to 4 in a terminal verticil, with tips often curved 

 and bearing i to 4 terminal, globose, hyaline, 3.5 to 4 //; con- 

 idia. • 



V. puniceum (Cke. & E.) Grev. 



On dead sticks, June, 1893 [Nuttall, 11 15). 



TRICHOTHECIUM Link. 

 T. roseum (Pers.) Link. 



On dead dried peach on ground; on decaying leaves /lex 

 verticillata, Sept. 14, 1893 {Nuttall, 1199). 



CEPHALOTHECIUM Corda. 



C. roseum Corda. 



On old Polyporus pergametius. Short Creek, alt. 1,300 ft., Nov. 

 10, 1893 {Nuttall, 1260, 205). 



DACTYLIUM Nees. 



D. dendroides (Bull.) F^r. 



On Polystictus versicolor, and apparently checking its develop- 

 ment. Oct. 12, 1893 {Nuttall, 1206). Spores 28 x 10 p.. 



