WEST VIRGINIA GEOLOGICAL SURVEY 33 



A. FLAVUS Lk. 



Also found on Lachnoladiuni semivestifum neglected in 

 plant press (Nuttall, 1877, 760). 

 Conidia 4 to 6 ju diameter. 



STERIGMATOCYSTIS Cram. 

 S. NIGRA v. Tiegh. 



On dried peach in garden, Aug. 15, 1893 (Nuttall, 1170). 



PENCILLIUM Link. 

 P. GLAUCUM Link. 



On Hydnwn sp. and Polyp or us varians, Aug. 16, 1893 

 (Nuttall, 1164, 136). 



BOTRYTIS Mich. 



B. OLIVACEA E. & E. Field Mus. Bot., i :88 (1896). 



TYPE HABITAT: On dead log. Short Creek, alt. 1,800 ft., 

 Feb. 26, 1894 (Nuttall, discov. 1411, 381). Fungi Colum- 

 biana, 593. N. A. F., 3187. 



Forming thin olivaceous patches 2 to 4 cm. in extent, 

 composed of olive-brown, septate threads, about 4 /* thick, 

 and dichotomously or oppositely branched above, the short 

 (15 to 25 /*) branches sub-attenuated above, and bearing 

 the obovate or elliptical, olive-brown, 6 to 8 x 4 to 4.5 M 

 conidia at their tips. 

 B. TORTA E. & E., Proc. Phila. Acad., 1894, 375. 



TYPE HABITAT : On dead leaves Co-rex Fraseri, Dec. 10, 

 183 (Nuttall, discov. 1248, 257). 



Hypha5 simple, sparingly branched, twisted above as in B 

 streptoth'rix or in Streptothrix atra B. & C., brown, 80 to 

 loo x 3 to 4 ju, forming numerous small brownish-black 

 tufts, effused or gregarious, on both sides of the leaf. Coni- 

 dia elliptical brown, 5 to 6.5 x 3 to 3.5 p. 



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

 conidia and more dwarfish growth. 

 B. VULGARIS Fr. 



On leaves Magnolia Fraseri, alt. 2,000 ft., July 12, 1893: 

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

 of Ipomaea pandurata, Feb. 17, 1894; on decaying Brassica 

 oleracea, Jan. 18, 1894; on Cicuta maculata, March 18, 1894 

 (Nuttall, 1116). 



VERTICILLIUM Nees. 

 V. OSTEOPHILUM E. & E., Field. Mus. Bot, i 189 (1896). 



TYPE HABITAT : On jaw bone of calf, in woods, Nov. 27, 

 1894 (Nuttall, discov. 1761, 647). 



