480 MIXXESOTA BOTAXICAL STUDIES. 



R. occidentalis var. tencllus GRAY, Proc. Am. Acad. 21 : 



373- 1886. 



7?. occidentalis var. Eiseni GRAY, 1. c. (in small part). 

 7?. Nehoni var. glabriusculus HOLZINGER, Cont. Nat. 



Herb. 3: 210. 1895. Not 7?. glabriusculus Rupr. 

 R. Bongardi 'var. tenelhis GREENE, Erythea, 3 : 54. 1895. 

 R. Douglasn HOWELL, Fl. N. W. Am. i : 18. Mch. 15. 



1897. 

 R. arcuatus HELLER, Bull. Torr. Club, 24: 310. June 29. 



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 i 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. i : 22. 1838. 

 R. recurvatus var. Nehoni DC. Syst. i: 190. 1818. 

 R. recurvatus (2 forms) SCHLECHT. Animad. Ranunc. 2 : 



28. 1820. 



R. Schlechtendalii HOOK. Fl. i : 21. 1829. (As to plant.) 

 R. Nehoni GRAY, Proc. Am. Acad. 8: 374. 1872. 

 R. Eiseni KELLOGG, Proc. Calif. Acad. Sci. 7: 115. 



1877. 

 R. occidentalis var. Eiseni GRAY, Proc. Am. Acad. 21 : 



373. 1886 (mainly). 

 7?. occidentalis \ax. 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. 

 /?. Ho-wellii GREENE, ex Howell, Fl. N. W. Am. i : 17. 

 1897. 



