POTENTILLA ANII3IGENS Greene, Erythea, t : 4. 1893.
It is strange that this very marked species should not have been described before L893. It was collected by Hall and Har bour in 1862, Wm. A. Bell in 1867 and•Geo. Vascy in 1881. The first specimens were included by Dr. Gray in P. Hippiana. On the label of Bell's specimens is written : " Durand suggests P. rivularis. Gray says no !—perhaps P. caVestris." One of •Dr. Vasey's specimens labeled I'otentilla Mirtheri, by whom I do not know.
P. anthigens is the tallest of the group,.67 ,dm. high, rather sparingly,grayish -silky. The leaflets are 3-4 .cm. long, coarsely serrate and,more• or less .decurrent on the ,rachis. The following specimens have been examined : Colorado Hall & Harbour, nos. 158 and 162, 1862 (both only in part); E. L. Greene.
New Mexico Wm. A. Bell (Ratan Mountains), 1867 ; G. R. Vasey (Las Vegas), 1867.