POTENTILLA DRUMMONDII Lehm. Nov. Stirp. Pug. 2 : 9. 1830.
Watson included this in P. dissccia. As he had only compara tively poor specimens, with few, more approximate leaflets, it was not strange that he did so, especially with his tendency of uniting forms somewhat related. Had he had such specimens as those collected by Suksdorf, or the one from which Lehmann's figure was drawn, I doubt if he had done it. Such well-developed speci mens have pinnate leaves of 3-5 rather distant pairs of leaflets, very large stipules resembling those of P. Plattensis and a large calyx which is strongly hirsute. From P. Plattensis and the other
species of the group it differs in the stoutness of the plant, which is 3-6 drn, high and by the fewer (2-5 pairs) and larger leaflets, which are from 3-6 cm. long, and the acute teeth. It is a rare species. The only specimens seen are the following : Washington : W. N. Suksdorf, no. 539. 1875.
Oregon : Elihu Hall, no. 135. 1871.
California : J. G. Lemmon, no. 1200. 1 875 .
British Columbia : John Macoun, no. 32. 1896.
Rocky Mountains of British America : E. Bourgeau, 1858.