POTENTILLA FLABELLIFORMIS Lehm. Stirp. Pug. 2: 12. 1830.
Potentilla gracdis fiabelliformis Nutt.; Torr & Gray, Fl. N. Am. I This stands nearest to P. Blaschke-az/a, but I think it is without doubt a good species. I have had the opportunity to watch the two in the field and found them often grow together, but never found an intermediate form, and in all the collections that have gone through my hands there are only the specimens from one locality, where I am in doubt tb which species to refer them, and these may be hybrids. P. flabelliformis differs from the related species in the leaves, which arc divided to near the base into linear sev ments. They are also white-tomentose beneath and densely
silky above. There are two forms of this species ; the one with narrow linear more or less revolute lobes and smaller flowers re sembles Lehmann's figure in Hooker's Fl. Bor. Am., and is there fore taken as the type. The other somewhat approaches P. Bierschkeana in the general habit and the size of the flowers, and may be known under the name :