Page:The Living Flora of West Virginia and The Fossil Flora of West Virginia.pdf/171

Rh WEST VIRGINIA GEOLOGICAL SURVEY

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a thin sub-fimbriate, white margin. Spores abundant, glo bose, with a single large nucleus, 4 to 6 ц diameter, slightly colored. The hymenium has only a slight tinge of olive and is per haps better described as light-drab color. LEPTAleUM E. & E., Field Mus. Bot., 1:170 (1896). Type habitat: On underside dead sapling Magnolia Fraseri, alt. 1,800 ft. April 11, 1895 (Nuttall, discov. 1803, 690). Thin, closely adnate, grayish-white, pulverulent, soon cracking into areas 2 to 3 mm. across, with margins incurved so as to resemble the shallow cups of some Peziza. Spores oblong, hyaline, continuous, 10 to 12 x 4 ц, borne on cyl indrical basidia 30 to 40 x 6 ц, with two stout sporophores. There are also other smaller (immature) ? sporidia, globose (4 to 6 ц) or elliptical, 5 to 7 x 3 to 3.5 /u. The membrane on which the hymenium stands where exposed on the in curved margin of the pezizoid areas is pale brown. Petersii B. & C. On Betula sp. and Vitis sp., March 21, 1893 (Nuttall, 912). COLLICULOSUM B. & C. On dead logs in laurel thicket, Short Creek, May, 1893 (Nuttall, 1088). PRASINUM B. & C. On dead, burned log, Feb. 2, 1894 (Nuttall, 1382, 344). LILACINO-FUSCUM B. & C. On dead limb Hicoria sp., Short Creek, alt. 1,800 ft., March 5, 1894 (Nuttall, 1403). OCHRACEUM Fr. On underside dead log Tsuga Canadensis, Mav 8, 1893 (Nuttall, 931). iNCARNATUM (Pers.) Fr. On underside dead log and on Ulmus pubescens, April 18, 1893 (Nuttall, 923). LiLAciNUM Schroet. On firm wood of dead log, March 6, 1894, Short Creek, alt. 1,800 ft. (Nuttall, 1427, 399). sUBgiganteUM Berk. On Hicoria ovata, Dec. 14, 1893. Spores 16 x 5 ц (Nutt all, 1312, 262). MARTIANUM B. & C. On underside of wet log, Dec. 16, 1893. When fresh, this species is the color of fresh blood. Sbort Creek, alt. 1,800 ft. (Nuttall, 1324, 281). SCUTelLARE B. & C. On Magnolia Fraseri, Sambucus Canadensis and Pinus Virginiana, Aug. 18, 1893 (Nuttall, 1176, 144).