476 MINNESOTA BOTANICAL STUDIES. 
28. R. Aschenbornianus Scuav. in Linnea, 20: 719. 1847. 
Stem erect, many-flowered: leaves hairy to subhirsute; 
radical leaves long-petioled, ternate to bipinnate, the pinnules 
3-parted to many lobed, the lobes nearly linear; peduncles 
silky: sepals reflexed: receptacle subpilose: akenes com 
pressed, slightly margined, smooth, with fine impressions or 
punctures, style straight: fruit in a globose head. Mountains 
of Mexico near ‘* Tutam.” 
29. R. acriformis. GrAy, Proc: Am. Acad. 21: 374.) Grose: 
Wie ores Fook, Flt: 18. 1829 (partly), 
Plant with short rather appressed pubescence, slender, erect, 
1 foot or more in height: leaves all 3—-7-parted or divided ; 
divisions 2—3-cleft or lobed, into lanceolate or linear segments 
which are often entire: petals yellow, roundly obovate, about 
3 lines long ; sepals about half as long, spreading or becoming 
reflexed: akene I to 2 lines long: beak half as long, curved. 
Eastern Rockies in Alberta; Montana, Wyoming; wet places. 
Southern Colorado at 10,000 feet. 
Rt. Montanensis Rydb. Mem. N. Y. Bot. Gard. 22)aGGy 
1900, is a form with beak more slender and more curved. 
30. R. Californicus Bentu. Pl. Hartw. 295. 1848. 
ft. acras var. Depp Nutr. ex Torr, & Gray, Fl, 2 ee 
1838. 
FR. delphintfolius ‘Torr. & Gray, Fl. 1: 659. 1838. 
Not Torr. 
kt. dissectus Hook. &. ARN. Bot. Beech. 316," seas 
Not Bieb. 
fF. regulosus GREENE, Pitt. 2: 58. 1890. 
Roots fibrous: plant rather weak, % to 2 feet high, usually 
pubescent or hirsute; branching and without leaves in upper 
part: leaves ternately divided or parted, or palmately 5-divided 
into linear or narrow often 2—3-parted divisions: petals 6 to 15, 
glossy yellow, oblong or narrowly obovate, 4 to 6 lines long: 
akenes flat, slightly margined, nearly 2 lines long: beak very 
short. Rather dry places. Western California and adjacent 
Oregon, common. Cultivated. 
Var. Ludovicianus (GREENE). 
FR. Ludovicianus GREENE, Bull. Cal. Acad. Sci. 2: 58. 
Mch..G. 2886. 
