P. CONCINNA DIVISA IL V.
P. reivea dissecta S. Wats. Proc. Am. Acad. 7: 556, at least in part. 1873. Not P. dissecta Pursh, 1814.
Leaflets pinnately divided. In a few cases the leaves are also pinnate rather than palmate.
Dr. Watson included the three first specimens cited below in his P. invea dissector, but in every respect they are much nearer P. con
cinna than P. niz'ea, the sepals, petals and general habit being ex actly that of the former.
Rocky Mountains : Douglas.
Montana : Howard.
South Dakota: Jenney. 1875 ; W. H. Forwood, 1887; P. A. Rydberg, nos. 672 and 673. 1892.
Assiniboia : John Macoun, no. 10,468, 1895.