180 KOSACEAE. HORKELIA. 



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. psendocapitata Eydberg 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 l ; .nes 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. leg. 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 Ho well P. C. PI. Col. 1887. Densely silky-pubescent ; 

 not glandular: stems densely tufted, 4-6 inched 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 

 1886. 



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

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

 late, email, 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 iobes. 



H. congesta Dougl. Hooker 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 r . 

 southwestern Oregon and adjacent California. 



