Davis : RANUNCULI OF NORTH AMERICA. 469 
7. R. Pennsylvanicus Linn. F. Suppl. 272. 1781. 
ft. Canadensis |Acq. Misc. 2: 343. 1781. 
Le. trifolius MoENcH. Meth. Suppl. 70. 1802. 
ft. hispidus Pursn, Fl. 2: 395. 1814. Not Michx. 
Re. fascicularis Wats. Bot. King Exp. 9. 1871. 
Plant hirsute or hispid, stout, erect, 8 to 20 inches high, 
very leafy, but the radical leaves often dying down: leaves 
petioled, ternately compound; leaflets well stalked, 3-parted 
and cleft, much incised and toothed, segments acute: flowers 
small, yellow, on short peduncles; petals oblong to obovate, I 
to 2 lines long; sepals about the same length, reflexed: re- 
ceptacle hairy: akenes 1 line long, oblique or semi-oval, com- 
pressed, roughened; beak subulate, stout, short, nearly 
straight: head of fruit oblong to cylindric. Wet ground, 
Nova Scotia to Georgia west to Arizona and British Columbia 
Waele. Rar. 2.705. 
8. &. Macounii Brirron, Trans. N. Y. Acad. Sci. 12:2. 
1892. 
RR. hispidus Hook. Fl. 1: 19. 1829. Not Michx. 
RR. repens var. hispidus Torr. & Gray, Fl. 1: 658. 
1838. In part. 
Erect or declined, hairy, branching, 1 to 2 feet long, stems 
rather few leaved: leaves ternately compound, leaflets usually on 
slender stalks, crenate, variously cleft and lobed, segments 
acute: petals yellow, obovate, about 3 lines long; sepals shorter, 
often reflexed, falling early: akenes smooth; beak subulate, 
flat, short and sharp: head oblong or oval. Moist places. 
western Ontario to British Columbia south to Iowa, and in 
mountains to Arizona. 
Var. Oreganus n. var. 
LR. hispidus var. Oreganus Gray, Proc. Am. Acad. 21: 
376. 1886. 
ft. Oreganus Howey, Fl. N. W. Am. 1: 19. 1897. 
Plant often taller, smoothish or with scattered hairs: flowers 
often larger. Shaded wet grounds, Willamette valley, Ore., 
to Frazer valley, east to Kootenai lake, Brit. Col. 
9g. R. Sardous CrRanTz, Stirp. Austr. 2: 84. 1763. 
R. parvulus Linn. Mant. 1: 79. 1767. 
Fe. Philonotis Enru. Beitr. 2: 145. 1788. 
ft. hirsutus Curt. Fl, Lond. 2: 4 40. 1821. 
