. Bulletin from the laboratories of natural history of the State University of Iowa. Natural history; Natural history. (see fig. 5), and the host determined as Paniaim virgatum. A collection made from the type locality on May 21, of the same year, was distributed in Ellis & Everhart's N. Am. Fungi, as No. 2888. This is teleutosporic material, as would be natural in a winter collection, but a little search reveals the presence of uredospores and paraphyses, and these, together with the teleutospores, agree exactly with those of the type collec- Fig. 4- tion of Pncci7iia clavispora Ellis and
. Bulletin from the laboratories of natural history of the State University of Iowa. Natural history; Natural history. (see fig. 5), and the host determined as Paniaim virgatum. A collection made from the type locality on May 21, of the same year, was distributed in Ellis & Everhart's N. Am. Fungi, as No. 2888. This is teleutosporic material, as would be natural in a winter collection, but a little search reveals the presence of uredospores and paraphyses, and these, together with the teleutospores, agree exactly with those of the type collec- Fig. 4- tion of Pncci7iia clavispora Ellis and I'REDO ALABAMENSIS Diet. ,-a , i c . , , -, From type collected at Au- Everhart, and of the two types already bum, Aia., oct. i4,1891. mentioned. The leaves of Panicum virgatum and of Chrysopogon avcnaccus can not be certainly told apart by any characters derived from the color, texture or surface markings of the blades, but on the other hand the ligules are wholly distinct, those of the Paniaim being prominent and fringed with long, white, silky hairs, and those of the Chrysopogon being still larger and entire. Diagnoses drawn from both rust and host show that these two Kansas collections sup- pttccinia vnoATAjf.,%E. From type posed to be on Paniaim are collected in Rooks Co., Kans., jan. 23,1892. identical with Pucciuia clavi- spora known to be on Chrysopogon, and that the host of the type of the earlier name was not a Panicum but was Chrysopogon avcnaccus. It appears that with the possible exception of material found in the herbarium of the Kansas Agricultural College no collection of the supposed P. virgata on Panicum has been made since 1892, and it was then only found "on one solitary tuft of grass about two feet across" (see Bartholomew's "Kansas Uredinese" in Trans. Kans. Acad. Sci. 16:183).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these
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