POTENTILLA MULTIJUGA Lehm. Rev. Pot. 29, 1856.
This species has been lost for about 40 years. As in the col lections of this country there were no specimens of a Potent/11a whose leaves resembled those of Lehmann's plate, and as those of the latter resembled the leaves of Horkclia cuneata, most botan ists have cited P. mullyirga as a synonym of that species, and even Professor Greene, in Flora Fransiscana, has adopted the name. It is not very likely that such an acute observer and eminent botanist as Dr. Lehmann would have figured a Hor kclia with true Potcnii/la flowers. In two collections, viz., those of the National Herbarium and the herbarium of Harvard University, I have found a Potentilla that answers Lehmann's description and plate, except that the plant is mar_e rank and the leaflets are larger, more irregular in form and position.
P. multiluga resembles much P. Plailensis, but the leaflets are more numerous, 8-13 pairs, obovate-cuneate and toothed only toward the apex, and the sepals broader ovate and abruptly con tracted at the apex. The leaflets in Lehmann's figure are about 2 cm. long ; some in the latter specimens are nearly Iz decimeter. Lehmann's figure illustrates an undeveloped specimen about dm. high. Some of the better developed specimens are m. high, with leaves 3 dm. long.