POTENTILLA SUBJUGA n. sp.
Tufted from a perennial root; stems many, 1-3 dm. high, silky-villous, few-leaved, rather divergently branched above, the lower portion covered with the brown scarious lower stipules ; up per stipules green, ovate, entire. Basal leaves many, digitately 5 (seldom 3-) foliolate with an additional pair of smaller leaflets on the petiole, about i cm. below the others ; leaflets 1-4 cm. long, oblong or obovate, deeply incised into oblong rather obtuse segments, silky and green above, silky and whitc-tomentose beneath ; stem leaves generally ternate, few and reduced in size ; calyx silky-hir sute, in fruit 5-8 mm. in diameter ; bractlets oblong, obtuse or acute, about shorter than the ovate triangular acuminate sepals; petals broadly obcordate exceeding the sepals ; stamens about 20 ; style filiform, nearly terminal ; achenes smooth. (Plate 274.)
As before noted it resembles somewhat the species of the Gmcilis group, especially P. fastigiate in size and P. pacherrima in the form of the leaflets and the pubescence. The latter has digitate or more or less pinnate leaves with approximate leaflets, but they are never, as in P. subjuga, digitately 5-foliolate with a pair of smaller ones some distance below. In P. subjuga, the leaflets are more deeply incised and the stem and branches stricter and the latter rather di vergent ; they are few-flowered,* as in P. nivea, from which it differs in the number of the leaflets.
Colorado: N. H. Patterson, no. 192, 1892 (from near Empire, type) ; 1885 (from Gray's Peak); C. S. Crandall, no. 184, 1892 (from Graymont); T. C. Porter, no. 44; Hall and Harbour, no. 160, 1862, mainly.