Proceedings of the Academy of Natural Sciences of Philadelphia (Volume 46) (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1895. Excerpt: ... when the perithecia are removed. Asci (p. sp.) 45-50 x 7-8, -, clavate-cyliridrical, paraphysate, 8-spored. Sporidia biseriate, oblong, 3-4-nucleate, slightly constricted in the middle, obtuse, hyaline, 10-12 x 31-4.U. Very distinct from D. Ryckholtii, which is also found on Symphorictirpoa. Diaporthe (Chorostate) tetraptera E.& E. On dead limbs of Halesia tetraptera, Nuttallburg, West Va., May, 1894 (L. V. Nuttall). Stroma cortical, 1J-2 mm. diam., surrounded by a black line which does not penetrate the wood. Perithecia 4--12, circinate, i mm. diam., sunk to the wood and leaving their impress on its surface but not penetrating it. Ostiola obtusely rounded and perforated, erumpent in a compact fascicle and closely surrounded by the ruptured epidermis. Asci clavate-cylindrical, 75-80 x 12, u. Sporidia biseriate, oblong-fusoid, slightly curved, subobtuse, hyaline, uniseptate and constricted at the septum, each cell with a large nucleus, 19-22x5-7, -, Differs from D. Halesice E. & E. in its smaller perithecia, not sunk in the wood and its much larger sporidia. Diaporthe (Chorostate) Hale Bias E. & E. On dead limbs of Halesia tetraptera, Nuttallburg, West Va., May, 1894 (L. W. Nuttall). Perithecia 4-8, loosely circinate, mm. horn-color inside, becoming nearly black, sunk in the wood, necks converging with their obtuse, smooth, hemispherical ostiola erumpent in a close fascicle, closely surrounded by the ruptured epidermis. Asci slender, 55-60 x 6-7/i, short-stipitate. Sporidia subbiseriate, fusoid-oblong, hyaline, 2-4nucleate, becoming uniseptate and slightly constricted, straight, 1215 x 2i-3//. There is no distinct circumscribing line around the stroma, but the iiiner surface of the bark is uniformly blackened. Diaporthe Araliee E. & E. On dead limbs of ...