. Bulletin from the laboratories of natural history of the State University of Iowa. Natural history; Natural history. 176 NATURAL HISTORY BULLETIN. time covered, and usually more abundant. The uredo- spores are thin-walled, closely and finely echinulate, and have four equatorial germ - pores. The specimens in this fascicle (36a) show only uredospores, as also does a specimen in the Fig. 2. L Puccini a polysora Und. From type herbarium of Mr. S. M. TraCV, collected at Auburn, Ala., colkcted by him &t Mobile, Ala., Oct. 17, 1886, but the type collection, made by B. M. Duggar at Au
. Bulletin from the laboratories of natural history of the State University of Iowa. Natural history; Natural history. 176 NATURAL HISTORY BULLETIN. time covered, and usually more abundant. The uredo- spores are thin-walled, closely and finely echinulate, and have four equatorial germ - pores. The specimens in this fascicle (36a) show only uredospores, as also does a specimen in the Fig. 2. L Puccini a polysora Und. From type herbarium of Mr. S. M. TraCV, collected at Auburn, Ala., colkcted by him &t Mobile, Ala., Oct. 17, 1886, but the type collection, made by B. M. Duggar at Auburn, Ala., Oct., 1891, shows both uredo- and teleutosori. The irregular, thin-walled teleuto- spores (fig. 2) are very different from the teleutospores of the preceding 37. PUCCINIA virgata E. & E. (1893. Proc. Acad. Nat. Sc. Phila. :154). 37a. On Chrysopogon avenaceus (Michx.) Benth. ii, III. Rooks Co. Kans., Bartholomew. Orig. Desc. "III. Sori amphigenous, but more fully developed on the lower side of the leaf, linear, often lcm. or more long', erumpent and margined laterally by the ruptured epidermis, dark chestnut- brown, almost black. Teleutospores mostly wedge-shaped or clavate, but also some of them oblong, 40-70 X 18-22//, the upper cell shorter and elliptical or subglobose and dark, the lower cell longer, narrower, and lighter colored, apex rounded and obtuse or subtruncate, and sometimes a little roughened. Epispore thickened at apex but without any distinct papilla. Has a general resemblance to P. graminis, but the spores are ; SYN: 1834. Caeoma (Uredo) andropogi Schw. Trans. Amer. Phil. Soc. 4:290. 1896. Puccinia clavispora Ell. & Barth. Erythea 4: 79. 1897. Uredo alabamensis Diet. Bull. Cornell Univ. 3: 22. Sori amphigenous, but more abundant beneath, linear, elongated, early naked, ruptured epidermis Please note that these images are extracted from scanned page images that may have been digitally enhanced for read
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