POTENTILLA RAMULOSA n. sp.
Stems several from the thick perennial root, about i dm. high, scarcely exceeding the basal leaves, more or less hirsute, and branched. Stipules lanceolate, the lower scarious and brown, the upper herbaceous ; basal leaves on hirsute petioles 5-8 cm. long, finely pubescent, in age shining ; leaflets 5-7, obovate, coarsely and generally doubly toothed with somewhat divergent teeth, prominently veined beneath, the larger 5-7 cm. long. Flowers slender-pediceled in an open cyme ; calyx and pedicels hirsute and with numerous sessile glands; bracts oblong, a little shorter than the oblong-ovate sepals ; both distinctly veined, in fruit in curved and inclosing the rather few large achenes ; petals obcor date, deeply ernarginate and evidently contracted in a short claw ; stamens 15-2o; pistils rather few ; achenes striate. (Plate 276.)
P. ramulosa resembles P. subviscosa, but is a much larger plant. The leaves, by their size, pubescence and form, remind one some what of P. Nutiallii and P. Blaskeana. The leaflets reach a length of even 7 cm. The general habit, form of calyx and corolla, etc., are those of P. sabviscosa, but the achenes are striate. The follow ing specimens have been examined : Arkona : J. G. Lemmon, no. 399, 1881 ; H. H. Rusby, 1883.
The Concinnae have the same relationship to the Niveere as the Aureae have to the Frigidae, i. e., they are Niveae with more than three leaflets. From the Subviscosae they differ by the tomentum on at least the lower surface of the leaves, and by their petals, which are not at all unguiculate.