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26 THE WEST VIRGINIA FLORA SPORODINIA Link. S. ASPERGILLUS (Scop.) Schroet. On dead Agaricus and Boletus, Sept. 10, 1893 (Nuttall, 1196). PERONOSPORACE AE. CYSTOPUS Lev. C. CANDIDUS (Pers.) Ley. On living leaves of Dentaria diphylla, Monongalia Co., at Little Falls (Millspangh). On Brassica nigra, July 8, 1893 (Nuttall, 1082). On Sisymbrium officinale; Raphanus sativus and Lepidium Virginicum (Sheldon, 686, 1577, 3020, 3291; 1792, 3035; 4457). C. IPOMOEAE-PANDURATAE (Schw.) Stev. & Sw. On Ipomoea pandurata (Sheldon, 701, 706, 784, 919, 1956, 3159, 3246). C. TRAGOPOGONIS (Pers.) Schroet. On Senecio aureus and Ambrosia artemisiaefolia (Sheldon, 2960, 3080). C. PORTULACAE (DC) Lev. On Portulacca oleracea, July 8, 1893 (Nuttall, 1083). C. BLITI (Biv.) DeB. On Amaranthus retroflexus, July 20, 1893. Spores 18 to 22 x 15 to 18 # (Nuttall, 1615). PLASMOPARA Schroet. P. VITICOLA (B. & C.) Berl. & De Ton. On fruit of Vitis Labrusca, Monongalia Co., near Morgan town (Millspaugh). P. CUBENSIS (B. &C.) Humphrey. On cucumbers, Mason, near Elwell, and on Musk Melons, Ohio, near Elin Grove (Sheldon, 1018, 2009, 2097). P. OBDUCENS Schroet. On Impatiens sp. (Sheldon, 2297). P. GERANII (Pk.) Berl. & DeToni. On Geranium maculatuin (Sheldon, 651, 2967). P. RIBICOLA Schroet. On Ribes sp. (Wild gooseberry) (Sheldon, 2446). P. HALSTEDII (Farlow) Berl. On Ambrosia trifida (Sheldon, 2957). PHYTOPHTHORA De Bary. P. INFESTANS (Mont.) DeB. On living leaves and tubers Solanum tuberosum, Monongalia Co., near Morgantown (Millspaugh). Digfized by Google
