RANCNCCLUS. EANUNCULACEiE. 17 



R. eremogenes Grefene Eryth. iv, 121. M. sceleratus of authors as to 

 the western plant. Glabrous: stem erfect, stout and fistulous, 6-30 inches 

 high, sparingly leafy, simple below, loosely corymbose-paniculate above, 

 herbage light-green ; lower leaves round-reniform, deeply 2-5-lobed, the 

 lobes obtusely-toothed above ; upper leaves more deeply and narrowly cut : 

 petals light yellow, surpassing the sepals: achenes numerous, smooth, flat- 

 tened, with very short beak, crowded in a short-oblong head : the oblong- 

 ovoid receptacle much inflated. Wet springy places, northern California 

 to Brit. Columbia and the Eocky Mountains ; east of the Cascade Mts. 



■<--»-■«-•«-•<- Leaves variously cleft or divided : achenes compressed, 

 usually flat, surrounded by a firm or indurated margin : none truly 

 alpine. 



t+ Radical leaves not divided into separate leafiets : petals usually 

 only 5 : achenes smooth or barely pubescent, in globose or oblong heads. 



= Style long, recurving, wholly persistent in a rigid and uncinate, 

 elongated beak. 



1 Perennials with erect stems from somewhat fleshy-fibrous roots. 



B. occidentalis Nutt. T. & G. Fl. i, 22. Pilose with spreading hairs: 

 stems rather slender, 10-18 inches high, at length much branched : radical 

 leaves orbicular, subcordate, more or less deeply 3-lobed, or 3-parted, and 

 coarsely toothed, an inch or less in diameter ; cauline leaves deeply cut 

 into 3-5 linear lobes : petals obovate-oblong, 3-7 lines long, twice as long as 

 the refiexed sepals : achenes smooth or nearly so, flat, a line in diameter; 

 beak nearly as long as the body ; heads globose. Common in dry open 

 places, Oregon to Alaska and the Rocky Mountains, 



R. Eiseni Kellogg Proc. Cal. Acad, vii, 115. Sparingly villous : stems 

 Blender, at length widely branched above, 1-2 feet high: leaves rather 

 small, not cordate at base, palmately 3-lobed or 3-parted, the broad cunei- 

 form lobes of the radical ones trifld : petals obovate-oblong, 3-5 lines long, 

 twice as long as the refiexed sepals : achenes broad and rounded, compress- 

 ed and thin, glabrous, tipped with a short recurved beak. In dry ground, 

 mountains of southern Oregon to middle California. 



R. Rattani. R. occidentalis var. Rattani Oray Proc. Am. Acad, xxi, S7S. 

 More or less villous with long white hairs : stem slender, 1-2 feet high, 

 widely branching above : leaves palmatelv 3-parted or 3-lohed, not cordate 

 at base, the brpad cuneiform lobes of the radical ones trifid : sepals 2-3 

 lines long, refiexed ; petals obovate-oblong, 4-6 lines long or more : achenes 

 becoming roughish-papillose, and sparsely or thickly beset with short 

 hairs. Dry ground, Houthern Oregon and northern California. 



Ri Howellii Greene ms. R occidentalis var. HowelliA Greene Pitt. Hi. 14- 

 R. canus Howell P. C. PI. No. 13S1. not Benth. Stems slender, smooth, 1-2 feet 

 hgih, widely branched above : leaves broadly cuneate, palmately 3-5-lobpd 

 or -parted, the cuneiform segments 3-toothed or -lobed, canescent with a 

 long appressed-silk;' pubescence : sepals ovate, acute, pubescent outside, 

 soon refiexed, 2-3 lines long: petals obovate-oblong, 4-6 lines long or more: 

 achenes rather small, smooth, tipped with a subulate, slightly hooked to 

 almost straight, elongated, style. Dry hillsides about Ashland Oregon, 

 extending to near the Klamath river in California. 



R. ciliosns. Soft-pubescent with moderately long, white, at length 

 spreading hairs : stems 1-several from a fascicle of fleshy-fibrous perenniai 

 roots, erect or ascending ; lower leaves 3-parted, tbe obovate ,or oblanceo- 

 late segments acutely 2-5-lobed ; the cauline 3-parted, the acute lanceolate 

 segnients entire or 2-3-lobed; the uppermost lanceolate and entire: sepals 

 ovate, acutish, 2-3 lines long, soon refiexed ; petals broadly obovate, 4-6 

 lines long : young achenes roundish, ciliate on the outer edge, tipped with 

 a long subulate hooked style: mature achenes not seen. Moist banks, 

 in Bear Valley, Blue Mountains, Oregon. Howell. May S3, 1885. 



