Vor. IL] CROWFOOT FAMILY. 77 
12. Ranunculus pedatifidus J. E.Smith. Northern Buttercup. (Fig. 1606.) 
y) 
Ranunculus pedatifidus J. E. Smith in Rees’ Cyclop. B 
no, 72. _ 1813-16. 
R. affinis R. Br. in Parry’s Voy. App. 265. 1823. 
Erect, 4/-12’ high, branching. Basal leaves 
‘petioled, broadly ovate or nearly orbicular, about 
1’ broad, obtuse, crenate or often lobed, those 
of the stem deeply lobed, nearly sessile, the lobes 
narrow, obtuse; flowers yellow, 6’’-8’” broad, the 
petals exceeding the spreading pubescent calyx; 
head of fruit oblong, 3//-6’’ long; achenes oval, 
tipped with a short beak, often hairy. 
Labrador and Quebec to Alaska, south in the Rocky 
Mountains to Arizona. Also in northern Asia, Summer, 
Ranunculus pedatifidus cardiophyllus (Hook. ) Britton, 
Bull. Torr. Club, 18: 265. 891. 
R. cardiophyllus Hook. Fl. Bor. Am. 1:14. 1829. 
Basal leaves broadly ovate or orbicular, crenate or 
slightly lobed; flowers larger; calyxtomentose. Lab- 
rador to British Columbia, south to Quebec, South 
Dakotaand in the Rocky Mountains to Arizona (?). 
Perhaps a distinct species. 
13. Ranunculus ovalis Raf. Prairie 
Crowfoot. (Fig. 1607.) 
Ranunculus ovalis Raf. Proc. Dec. 36. 1814. 
4 
Ranunculus rhomboideus Goldie, Edinb. Phil. 
Journ, 6: 329. 1822. 
Pubescent, branching, 6/-18’ high. Lower 
and basal leaves oval, oblong, or ovate-oblong, 
long-petioled, the blade 1’ in length or more, 
crenate or slightly lobed, obtuse, the base more 
or less cuneate; upper cauline leaves sessile or 
short petioled, deeply divided into 3-7 linear 
or oblong obtuse lobes; flowers yellow, 9//-12/’ 
broad, the petals narrow and much exceeding 
the calyx; head of fruit spherical; carpels and 
achenes oval or orbicular, minutely beaked. 
In fields and on prairies, Labrador and Ontario 
to the Northwest Territory, Illinois and Wiscon- 
sin. March-May. 
Britton. Harvey’s Buttercup. 
(Fig. 1608.) 
Ranunculus abortivus var. Harveyi A. Gray, Proc. 
Am. Acad. 21: 372. 1886. 
Ranunculus Harveyt Britton, Mem. Torr. Club, 5: 
159. 1894. 
Glabrous, stem erect, slender, branched, 8/— 
18/ tall. Leaves thin, the basal and lower ones 
long-petioled, reniform or suborbicular, ob- 
tusely crenate or somewhat lobed, 5’’-18’’ wide, 
cordate, or some of them truncate at the base, 
the upper sessile or nearly so, deeply 3-cleft or 
3-parted into linear or narrowly oblong entire or 
few-toothed obtuse segments; flowers bright 
yellow, 6’’-9’’ broad; petals 4-8, oblong, 4 or 5 
times as long as the reflexed sepals; head of 
fruit globose, 2’” in diameter; achenes oblique, 
compressed, tipped with a minute straight style. 
On dry hillsides, Missouri and Arkansas, April-May. 
