Page:The Living Flora of West Virginia and The Fossil Flora of West Virginia.pdf/76

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THE WEST VIRGINIA FLORA to 112 ц diameter. Sporules globose or short-elliptical, hya line, granular, 6 to 8 x 5 to 6 /1. Negundinis Sacc. On Acer Negundo, July 5, 1894. Sporules 5 to 10 x 3 to 7.5 /1 (Nuttall, 1 63 1, 560, 561). sp. On Geum Canadense, Oct. 24, 1894 (Nuttall, 1733). Spores irregular 4 to 7.5 x 1.5 to 2.5 ц 2-nucleate. ACERICOLA E. & E. On living leaves Acer sacclwrinum, Putnam Co., near Buffalo, 1 891 (Millspaugh). On leaves A. rubrum, June 24, 1894 (Nuttall, 1 561). Xanthorrhizae E. & Nuttall, Field Mus. Bot., 1 :105 (1896). Type habitat : On leaves Xanthorrhiza apiifolia, Nov. 3, 1893 (Nuttall, discov. 1738, 625). Spots subelliptical, dirty-white in the center with a dark shaded margin, 3 mm. to 1 cm. long x 2 to 8 mm. wide, finally more or less deciduous. Perithecia seated on the white part of the spots, epiphyllous, subdiscoid, perforated above, 60 to 75 ц diameter. Sporules oblong-elliptical, hya line, 2-nucleate, 5 to 6 x 2.5 to 3 ц. Accompanied by a Macrosporium on the same spots. sp. On leaves Rubus Canadensis, Nov. 3. 1894. Sporules variable in form, 5 x 1.25 to 2 ц (Nuttall, 1747, 627). CERcidicoLA E. & E., Field Mus. Bot., 1:105 (1896). Type habitat: On leaves Cercis Canadensis, Nov. 21, 1894 (Nuttall, discov. 1751). Spots suborbicular, .5 to 1 cm. diameter, rusty-brown, be coming lighter, paler below, margin narrow reddish-purple. Perithecia epiphyllous, convex, suberumpent, but covered (except the apex) by the epidermis, ilo to 150 /1 diameter. Sporules oblong, slightly narrowed and rounded or obtusely pointed at the ends, hyaline, 2 to 3-nucleate, 15 to 20 x 6 tO 7 ц. Differs in the character of the spots, and in the presence of a perithecium, from Gloeosporium Cercidis, E. & E. Araliae E. & E., Proc. Phila. Acad., 1894, 355. Type habitat : On leaves Aralia spinosa, Sept. 20, 1895 (Nuttall, discov. 1703, 598 588?). Spots suborbicular, light-brown with the margin a little darker, 5 to 1 cm. diameter. Perithecia epiphyllous, some what flattened, 100 to 150 ц diameter. Sporules oblongelliptical, hyaline, 2-nucleate, 10 to 15 x 5 to 6 ц. Sassafras Cooke. On leaves Sassafras Sassafras, June 28, 1894. Sporules 5 to 7 x 2 to 3 ц (Nuttall, 1566).