480 MINNESOTA BOTANICAL STUDIES. 
RP. occidentalis var. tenellus Gray, Proc. Am. Acad. 21: 
BUEN ifolclop 
FP. occidentalis var. Evsent Gray, |. c. (in small part). 
PR. Nelsont var. glabriusculus HouzincER, Cont. Nat. 
Herb. 3: 210. 1895. Not 7. glabriusculus Rupr. 
FR. Bongardi var. tenellus GREENE, Erythea, 3: 54. 1895. 
ft. Douglas: Moweu., Fl. N..W. Am. 1: 16. elses 
1897. 
RR. arcuaius HELLER, Bull. Torr. Club, 24: 310. June ae: 
1897. 
Slender, erect, usually over one foot high, slightly pubescent 
or glabrous, hirsute on petioles and peduncles: leaves deeply 
3-5-cleft; segments broadly cuneate to oblanceolate, coarsely 
toothed: petals 1 to 2 lines long; receptacle glabrous: akenes 
compressed, glabrous, semi-oval; styles persistent, circinate- 
revolute; head small, globose. Southern California, Idaho, to 
Alaska. 
38. R. occidentalis Nutt. ex Torr. & Gray, Fl. 1: 22. 1838. 
PR. recurvatus var. Nelsont DC. Syst. 1: 190. 1818. 
FP. recurvatus (2 forms) SontecutT. Animad. Ranune. 2: 
29.1 O20. 
R. Schlechtendalii Hoox. Fl. 1: 21. 1829. (As to plant.) 
FR. Nelsont Gray, Proc. Am. Acad. 8: 374. 1872. 
RR. Fisent KeLuoce, Proc. Calif.: Acad. Sci. 7: grag 
£077: 
R.-occidentalis var. Ezsent Gray, Proc. Am. Acad. 21: 
373. 1886 (mainly). 
RP. occidentalis var. brevistylus GREENE, Pitt.3: 14. 1896. 
Plant villous with spreading hairs, 5 to 18 inches high: lower 
leaves petioled, round cordate, 3-5-cleft or parted; segments 
cuneate-obovate, often 2—3-cleft and cut; some leaves 3-divided 
with the leaflets stalked ; upper stem leaves smaller with lanceo- 
late segments: petals yellow, large, spreading; sepals half as 
long, reflexed: akenes glabrous or sparsely bristled: style flat- 
tened, subulate, hooked, half as long as akenes; receptacle gla- 
brous: head of fruit ovoid. Low open places. Alaska to 
Montana and California. 
Var. Howellii GREENE, Pitt. 3: 14. 1896. 
FR. Howellit GREENE, ex Howell, Fl. N. W. Am. 1: 17. 
1897. 
