80 RANUNCULACEAE. [Vor. II. 
Bristly Buttercup. 
(Fig. 1616.) 
21. Ranunculus bulbdésus L. Bulbous 
Buttercup. (Fig. 1615.) 
Ranunculus bulbosus I. Sp. Pl. 554. 1753. 
Erect from a bulbous-thickened base, hairy, 
6-18’ high. Leaves petioled, 3-divided, the ter- 
minal division stalked, the lateral ones sessile or 
nearly so, all variously lobed and cleft, flowers 
bright yellow, about 1’ broad; petals much longer 
than the reflexed sepals, obovate, rounded; head 
of fruit globose, 5’’-6’’ broad; achenes com- 
pressed, very short-beaked. 
In fields and along roadsides, quite common in 
most sections of ourarea. Naturalized from Europe. 
May-June. In England the name Buttercups is 
chiefly applied to this species and to 2. repens and 
R. acris; called also in middle English Kingeups, 
Goldcups, Butter-flawers and Blister-flowers. May- 
July. 
Ranunculus Pennsylvanicus VY. £. Suppl. 272. 1781. 
Erect, branching, pilose-hispid, 1°-2° high, 
leafy. Leaves thin, 3-divided; divisions deeply 3- 
cleft, the lobes lanceolate, cuneate, acute, in- 
cised; flowers yellow, 3’’-4’’ wide; petals equal- 
ling the reflexed sepals or shorter; head of fruit 
oblong or cylindric (3/’ thick, sometimes 6/’ 
long); achenes smooth, pointed with a sharp 
beak one-third their length; receptacle hairy. 
In wet, open places, Nova Scotia to Georgia and 
west to the Rocky Mountains and British Columbia. 
June-August. 
23. Ranunculus Macounii Britton. 
Macoun’s Buttercup. (Fig. 1617.) 
Ranunculus hispidus Hook. Fl. Bor. Am. 1: 19. 
1829. Not Michx. 1803. 
Ranunculus Macounti Britton, Trans. N. Y. Acad. 
Sci. 12: 3. 1892. 
Erect or diffuse, hairy, branching, 1°-2° high. 
Leaves 3-divided, the blade 2’-3/ long, the divi- 
sions broadly oblong, acute, cuneate, variously 
cleft and lobed; flowers 5’/-6’’ broad, yellow, 
the petals exceeding the spreading or slightly 
reflexed calyx; head of fruit oblong, 4’’ thick; 
achenes smooth, pointed with a sharp beak about 
one-fourth their length. 
Western Ontario, Minnesota and Iowa west to the 
Pacific Coast, extending south in the Rocky Moun- 
tains to Arizona. Our description probably in- 
cludes more than one species. Summer. aa 
