180 ROSACEAE. horkelfa. 



setaceous ; leaflets oblong-cuneiform, 6-8 lines long, deeply cut into 5-9 

 linear-oblong or filiform segments; cauline leaves similar, with nearly free 

 pinnatifid stipules and more simple leaflets with linear segments : flowers 

 crowded on the branches of the almost capitate or at length open-panicu- 

 late cyme ; bractlets linear, shorter and much smaller than the triangular 

 acuminate calyx lobes ; petals white or pinkish, cuneate-obovate, attenu- 

 ate to a slender claw, 3 lines long, longer than the sepals; filaments 

 broadly oblong: achenes oblique-ovoid. In high mountain valleys, 

 Washington to California. 



H. pseudocapitata Rydberg 1. c. Sparingly pilose and more or less 

 glandular: stems rather slender, 6-14 inches high : leaves 2-6 inches long, 

 9-15-foliolate; stipules linear or the upper ones broadly subulate ; leaflets 

 broadly obovate with cuneate base to narrowly cuneate. 3-8 hnes long, 

 more or less deeply incised and toothed with obtuse to acute teeth : flowers 

 in small subcapitate cymes; bractlets linear, a line long, about half as 

 long as the broadly subulate calyx-lobes; petals oblong, attenuate below 

 to a short claw, retuse at the apex, about 3 lines long, but little exceeding 

 the calyx, filaments triangular, obtuse. In moist meadows and along 

 streams, southern base of the Blue Mountains in Oregon-. 



H. capitata Lindl. Bot. Reg. under t. 1997. Somewhat glabrous: 

 stems viscous-pubescent toward the summit: radical leaves about 13-folio- 

 late ; stipules entire or 3-parted ; leaflets laciniate-incised, the lower ones 

 roundish-cuneiform, the upper oblong and attenuate at base : heads of 

 flowers dense, shorter than the laciniate bracts ; bractlets lanceolate-subu- 

 late, about as long as the calyx-lobes : petals broadly cuneiform, longer 

 than the calyx. Cascade Mountains of Oregon. 



H. Hendersoni Howell P. C. PI. Col. 1887. Densely silky-pubescent ; 

 not glandular : stems densely tufted, 4-6 inches high : simple : stipules se- 

 taceous, or those of the cauline leaves lanceolate: leaves very numerous 

 at the ends of the much branched caudex : leaflets 11-17, mostly crowded, 

 broadly cuneate and palmately 3-5-lobed, or the lowest ones often obovate 

 and entire, 1-3 lines long, flowers rather few, in compact terminal cymes, 

 bractlets linear, nearly equalling the subulate calyx-lobes; petals nar- 

 rowly lanceolate, about equalling the calyx; filaments broad-subulate, 

 half as long as the sepals : achenes not seen. On top of Ashland Butte, 

 Siskiyou Mountains, Oregon. First collected by L. F. Henderson, July 



H. parviliora Nutt. T. & G. Fl. i, 435. Tomentose ; upper part of the 

 stem viscidly villous: radical leaves 9-13- folio 1 ate ; stipules ovate-lanceo- 

 late, small, entire or toothed : leaflets short, roundish, the upper ones 

 cuneiform, incised: flowers small, much crowded on the branches of the 

 fastigiate cyme ; bractlets linear subulate, shorter than the narrowly tri- 

 angular calyx-lobes; petals narrow, spatulate longer than the- calyx. 

 Plains of eastern Oregon and Washington. 



* * Style filiform, about equalling the stamens: stipules much di- 

 vided into linear lobes. 



H. congesta Dougl. Flooker Bot. Mag. t. 2880. Hirsute with long 

 spreading hairs below, nearly smooth above: stems slender, erect, 6-20 

 inches high or more: radical leaves 7-15-foliolate, the rachis hirsute be- 

 low with long white spreading hairs: leaflets narrowly spatulate, or the 

 earliest ones oblong, 6-10 lines long, 2-3-toothed at the apex, sparingly to 

 densely silky both sides: flowers rather small, in open paniculate cymes; 

 bractlets linear, more than half as long as the triangular-acuminate calyx- 

 lobes: petals obovate, attenuate below" to a narrow claw, rounded at the 

 apex, 2-3 lines long, exceeding the calyx: filaments very short, triangu- 

 lar : achenes ovoid, a line long, whitish. On low hills and dry prairies, 

 southwestern Oregon and adjacent California. 



