Repository: UIHistories Project: Board of Trustees Minutes - 1884 [PAGE 137]

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141 M. hibisciatum, Schw. Hypophyllous; spots usually few, large, thickened, definite, brown with a yellow border; peridia mostly densely crowded, sometimes irregularly circinate, subimmersed; spores broadly oval, 18 by 37 ix. On leaves of Hibiscus militaris.

M. geranii, DC. Hypophyllous; spots definite, not large, purplish or yellow, scarcely thickened; seeidia circinating, small, short, deeply and rather finely split, and much recurved; spores subglobose, epispore thin, thickly tuberculate, 18 by 21 /x; spermogonia clustered in the center of the spots, on both sides of leaf. On Geranium maculatum.

M. impatientis, Schw. Hypogenous; spots sometimes definite, purple, yellow-bordered, more often effused, on the leaves scarcely thickened, on the petioles and stems swollen; aecidia subcircinate or irregularly scattered, short, deeply and rather coarsely split and much recurved; spores subglobose or elliptical (vertical diameter shorter), epispore thin, apparently smooth, contents finely granular; 15-18 by 18-21 /x; spermogonia clustered above in the center of the definite spots, otherwise sparsely scattered on both sides of leaf. On Lnpatiens.

M. ptelece, B. & C. Mostly hypophyllous; spots distinct, yellow, thickened; secidia irregularly clustered, cylindrical, rather long, becoming numerously and deeply split and much recurved; spores subglobose or elliptical, large, conspicuously tuberculate, 21-25 by 24-30 /x; spermogonia not found. On leaves of Ptelea trifoliata. There is scarcely any doubt but that the plant described above is the Mci&ium ptelece of Berkeley and Curtis, though the description in (rrevillea is insufficient and the original specimen in the Curtis collection is so poor that its characters can not be made out.

M. onobrychidis, Burrill. Hypophyllous; spots distinct or confluent, somewhat effused, yellowish-brown; secidia subcircinate, crowded, short, border abruptly recurved, rather coarsely dissected; spores subglobose or elliptical, epispore rather thin, studded with low, obtuse tubercules, sometimes united in ridges, 11 -24 //; spermogonia clustered in the center of the spots, mostly on the upper surface, minute, reddish-brown. On Psoralea onobrychis.