Repository: UIHistories Project: Board of Trustees Minutes - 1884 [PAGE 127]

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131 P. rubi-idcei, (Pers.) Wint. II and III. Hypophyllous; uredosori small, scattered, usually very numerous; uredospores obovate or elliptical, epispore thin, sharply echinulate, 15-18 /JL; teleutosori small, scattered, powdery, black; teieutospores cylindrical, ends obtusely rounded, vertex furnished with a more or less elongated, conical or often somewhat cylindrical hyaline apiculus, whole surface very rough-warty, almost black, about six to eight septate, 27-83 by 62-i20 /JL; pedicel tinted near the spore, otherwise hyaline, about one and one-half times the length of the spore, from above the middle downward elongateelliptical, roughened. On leaves of Rubus strigosus. The teleutosori are surrounded by many incurved colorless (in dry specimens) clavate paraphyses, but a careful examination of the specimens failed to reveal them with the uredosori, though these were over-mature and the spores everywhere scattered among the matted hairs of the leaf. P. rubi, (Pers.) Wint. II and III. Hypophyllous; sort very small, scattered; uredosori often very numerous, circular, orange-yellow, without paraphyses; uredospores ovate or elliptical, each borne upon a pedicel, epispore thin, finely echinulate, 12-15 by 15-20 i±\ teleutosori rounded, sometimes confluent, black; teieutospores about 4 to 5 septate, cylindrical, sometimes constricted at the septa, ends obtusely rounded, the vertex furnished with a conical, more or less deeply tinted apiculus, surface finely tuberculate, sometimes appearing smooth, darkbrown, 35 by 100 [i\ pedicel about as long as the spore or somewhat longer, very much smaller in the lower half. On Rubus villosus.

Genus TKIPHRAGMIUM, Link. Teieutospores dark-brown, three-celled, triangular, the dividing septa vertical and horizontal or oblique. In this genus no secidiumform has been found, though spermogonia exist with the uredo. The species are easily recognized, but they are comparatively few; none, so far, found in Illinois.

Genus BAVEiNELIA, Berkeley. Teieutospores many celled, berry-like, with vertical and horizontal septa, usually with a series of hyaline cells at base, pedicellate or sessile. This curious genus is comparatively little known, and its standing among the TJre&inem has not been firmly established. It seems the germination of the spores has not been observed, neither have other