Page:The Living Flora of West Virginia and The Fossil Flora of West Virginia.pdf/75

Rh WEST VIRGINIA GEOLOGICAL SURVEY

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a narrow black border. Perithecia epiphyllous, scattered, 100 to 11o ц diameter, convex-prominent above, visible also below. Sporules narrow-elliptical, hyaline, 2-nucleate, 5 to 6 X 2 to 3 ц. Differs from P. toxica, E. & M., in larger deciduous spots with a narrow border, and its narrow-elliptical sporules. LiNDERicoLA E. & E., Proc. Phila. Acad., 1894, 354. Type habitat : On leaves Benzoin Benzoin, Aug. 26, 1894 (Nuttal, discov. 1688, 593). Spots various ; punctiform and minute without any definite border, often irregular in shape 1 mm. to 1 or 1.5 cm. diam eter, or marginal, forming a narrow strip along the edge of the leaf for half its length, pale brown, nearly the color of weather-beaten wood, with a dark (almost black) border. Perithecia epiphyllous, hemispherical, 100 to 120 /1 diameter, covered by the blackened epidermis which is raised into pustules barely pierced at the apex. Sporules oblong-el liptical, hyaline, 4 to 7 x 2 to 3 /1. This differs in almost every respect from Ph. Linderae E. & E. Smilacis subeffusa E. & E. On Smilax rotundifolia, Sept. 21, 1894 (Nuttall, 1701, 594). Perithecia scattered over surface of dead dry leaves of the host. Oxydendri E. & E., Field Mus. Bot., 1 : 104 (1896). Type habitat: On leaves of Oxydendron arboreum, Oct. 10, 1894 (Nuttall, discov. 171 7, 605). Spots suborbicular or elliptical, reddish-gray, 3 to 8 mm. diameter, with a narrow, slightly raised dark red border, beyond which the leaf is generally shaded reddish-purple. Perithecia epiphyllous, subapplanate, 100 to 120 ц diameter. Sporules oblong-elliptical, 2-nucleate, hyaline, 7 to 8 x 2.5 to 3 ц. The spots finally become of a lighter, dirty-white color. Celastri E. & E., Field Mus. Bot., 1:104 (1896). Type habitat: On leaves Celastrus scandais, Oct., 1894 (Nuttall, discov. 1718, 606). Spots mostly marginal, 8.5 to 1 cm. diameter, ferruginous, definite, with a narrow, darker border. Perithecia epiphyl lous, subapplanate, 150 ц diameter. Sporules oblong, 7 to 10 x 2 to 2.5 ц hyaline. 2-nucleate. glOBiFERA E. & E., Field Mus. Bot., 1 :104 (1896). Type habitat: On leaves Cornus florida, Oct. 24, 1894 (Nuttall, discov. 1728, 615). Spots marginal, light-brown, continuous, extending across the tip of the leaf and partly down each side, 5 to 1 cm. wide, separated from the green part of the leaf by a narrow, purple margin. Perithecia amphigenous, discoid, black, 100