Repository: UIHistories Project: Board of Trustees Minutes - 1884 [PAGE 118]

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122 parasite is plainly different from the type. The sori more frequently have a circular arrangement around one evidently older, the epidermis is later rupturing and afterwards is less apparent as a border; the spores are much lighter colored and the epispore is thinner. This is the uredoform. The teleutospores seem to be rarely developed. P . glechom-atis, DC. III. Hypogenous; spots small, distinct, at first light-yellow, soon becoming blackish and breaking out, leaving more or less circular holes; sori usually closely clustered, often somewhat circinating, rarely scattered, ferruginous-brown; spores subelliptical, very variable, sometimes obtusely rounded but often conspicuously pointed above or below, oblong, elliptical, light colored, 13 by 31 /i; pedicel hyaline, fragile, nearly as long as the spore. On leaves of Lophanthus nepetoides. This is P. glechomce, D. C. (PI. Fr. VI, p. 55), and P . hyssopi, Schw. P . plwnbaria, Peck. III. Amphigenous; sori scattered on stems and leaves, small or large, sometimes confluent, covered until late with the more or less fissured and peculiar lead-colored epidermis, when naked dark reddish-brown, powdery; spores inegular, broad, mostly broadly ovate, obovate or elliptical, little constricted, apex usually slightly thickened or apiculate, smooth or minutely roughened, 21-25 by 32-50 /A, commonly about 39 ;i long; pedicel hyaline, rather fragile, from less than one to one and a half times the length of the spore, sometimes more or less lateral. On Phlox divaricata. The description by Peck is in the Botanical Gazette, June, 1831, p. 228, from specimens collected in Utah. During the same year, but believed to be later, Thiimen sent out Century XXI of his Mycotheca Univrsalis, containing with number 32 a description with specimens from Idaho, on Gilia under the name of P . Wilcoxiana. By comparison of authentic specimens these prove to be specifically indistinguishable, as are those of Ellis' North American Fungi, number 1044; however, the latter bears the varietal name of phlogma. The last has a different unclear spot in each segment, and the epispore is more distinctly roughened. The Illinois specimens on Phlox are very nearly smooth and do not have this round segmental spot, hence are more like the typical specimens of Peck in these respects. They are somewhat more irregular in shape than any of the others and the pedicel is more often obliquely produced. P . convolvuli, Cast. I. Hypogenous; spots small, distinct or sparingly confluent, brown; secidia irregularly clustered or sometimes sub-circinate, short, small, pseudoperidium fragile, becoming powdery soon after opening;