280 BROOKLYN BOTANIC GARDEN MEMOIRS 
No aecia in America have been found which can be referred to this 
species. There is, however, no evidence at present available for be- 
lieving the American species different from the European. 
197. UROMYCES MINIMUS Davis, Bot. Gaz. 19: 415. 1894. 
Nigredo minima Arth. Résult Sci. Congr. Bot. Vienne 344. 1906. 
ON POACEAE: 
Muhlenbergia comata (Thurnb.) Benth.—Wallowa Valley, Wallowa 
Co., July 28, 1900, Wm. C. Cusick. 
Muhlenbergia racemosa (Michx.) B.S.P.—Wallowa Valley, Wal- 
lowa Co., July 28, 1900, Wm. C. Cusick. 
198. UROMYCES OBLONGA Vize, Grev. 5: I10. 1877. 
Uromyces minor Schrét. Krypt. F. Schles. 3!: 310. 1887. 
Uromycopsis minor Arth. Résult Sci. Congr. Bot. Vienne 345. 
1906. 
On LEGUMINOSAE: 
Trifolium albopurpureum T. & G.—Corvallis, E. R. Lake, 32209. 
Trifolium dubium Sibth.—Corvallis, Apr. 10, 1914, F. D. Bailey, 
1522; Orenco, Washington ‘Co., June 13, 1914, 3226; * Yaquina, 
Lincoln Co., July 17, 20, 1915, 3100; Gerlinger, June 22, 1914, G. B. 
Posey; 323.2- 
Trifolium eriocephalum Nutt.—Corvallis, July, 1910, 1989. 
Trifolium Halla Howell—Corvallis, June 6, 1899, E. R. Lake, 
3232, May. 12, 19003, A. Hi. Post, 3230: 
Trifolium microdon H. & A.—Corvallis, May 11, 1907, E. R. Lake, 
1408. 
Trifolium oliganthum Steud.—Corvallis, May 11, 1914, F. D. Bailey, 
AE hehe 
Trifolium procumbens L.—Corvallis, June 22, 1901, L. C. M., 
7633, July, 1910,7170- 
Trifolium tridentatum Lindl.—Philomath, June 24, I914, 1345; 
Corvallis, May 28,, 1903, E> oR: Lake; 3230, May 11, 1914; 2 
Bailey, 3235. 
This opsis-form is very common on native Trifolium sp. The 
original collection by Harkness was reported as occurring on “ Bur 
cloves”? now considered an error for Trifolium. 
199. UROMYCES OCCIDENTALIS Diet. Hedwigia Beibl. 42: 98. 1903. 
Nigredo occidentalis Arth. N. Am. Flora 7: 252. 1912. 
ON LEGUMINOSAE: 
Lupinus sp.—Grant’s Pass, Josephine Co., Sept. 3, 1916, J. R. 
Weir, 248. 
200. UROMYCES PERIGYNIUS Halsted, Jour. Myc. 5: 11. 1889. 
Nigredo perigynia Arth. Résult Sci. Congr. Bot. Vienne 344. 1906. 
