Repository: UIHistories Project: Board of Trustees Minutes - 1884 [PAGE 112]

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116 P. proserpinacce, Farlow. II and III. Amphigenous, but often only hypophyllous; sori rounded, scattered or collected in irregular groups, sometimes, especially along the veins, confluent, rarely naked, the uredosori surrounded by the remains of the ruptured epidermis, the two kinds nearly of the same color, chestnut-brown, the teleutosori becoming grayish from the germinating filaments; uredospores obovate, pale cinnamon colored; epispore rather thick, sharply echinulate, 15-21 by 24-30 ,u; teleutospores oblong, sometimes narrower, usually gradually contracted at the septum, apex thickened and rounded or pointed, epispore thin, smooth, cell contents granular, pale brown, 15-21 by 85-52 /i; pedicel nearly hyaline, usually about half the length of the spore. On Proserpinaca palustris. P. circcece, Pers. III. Hypophyllous. Spots definite, purple or brown; sori rounded and clustered and more or less circinate; teleutospores oblong, slightly constricted, smooth, obtusely pointed, apex thickened, narrowed at base, 15-24 by 21-36 /*; pedicel somewhat colored, equaling or exceeding the length of spore. On Circcea Lutetiana and C. alpina. On Circcea Lutetiana the sori are matted, while in C. alpina they are distinct, smaller and often circinate. P . pimpinellce, (Strauss) Lk. II and III. Amphigenous. Sori rather large, round, scattered, soon naked; uredospores globose or ovate, minutely rounded, thick walled, 18-21 by 24-27 /n; teleutospores broad, ends rounded, little constricted, surface roughened with mesh-like, depressions, 18-21 by 29-35 JJ.; pedicel hyaline, fragile, sometimes more or less lateral. On Osmorrhiza longistylis and O. brevistylis. Peck (29fch Eep. N. Y. State Mus. [1878J p. 73) mentions without describing P. Osmorrhiza, C.&P., on Osmorrhiza. Previously (25th Eep. N. Y. State Mus. [1873] p. 112) he describes P. Myrrhis, Schw. (N. Am. Fung. [1834] p. 296) on the same host plants. Schroeter (Hedw. XIV [1875] p. 169) shows the latter to be the same as P. Pimpinellce, Lk. (Spec. Plant. II, [^824-25] p. 77) Winter (Babh. Kryptog. Fl. I [1882J p. 212) unites these two with P . Chcsrophylli, Purton (Brit. Plants III [1821] No. 1553) and other supposed species under the name P. Pimpinellce, (Strauss). The above mentioned specimens, collected by Wolf, were identified by Peck as P . Osmorrhizce, O.&P., but they agree with his description of P . Myrrhis, Schw. and with Thumen's specimens, including those of P . Myrrhis, Schw., (Mycoth. Univ. No. 1327) collected in New York by Gerard, and P . Chcerophylli, Purton (Mycoth. Univ. No. 1229).