- 
8 RANUNCULACEE&. (CROWFOOT FAMILY.) 
7. R. recurvatus, Poir. Hirsute ; leaves all petioled, 3 — 5-lobed ; the 
lobes wedge-shaped, sharply toothed ; petals minute, shorter than the calyx; 
achenia in globose heads, pointed with a long and slender recurved beak. — Low 
grounds. April and May. — Stem 1? - 2° high. 
8. R. sceleratus, L. Smooth; leaves 3-parted, with the divisions wedge- 
shaped, obtusely lobed and toothed; the uppermost sessile; petals as long as 
the calyx ; achenia in oblong or cylindrical heads, pointless. — Ditches and 
swamps, Charleston ( Elliott). Introduced from Europe. April and May. — Stems 
thick, 1° high. 
9. R. Pennsylvanicus, L. Hirsute; leaves ternate; leaflets long- 
stalked, 3-parted, the divisions lanceolate, acutely lobed and toothed ; petals 
shorter than the calyx ; achenia in oblong heads, pointed with a broad straight 
beak. — Low grounds in the upper districts. June. — Stem 2°-3° high, Pe- 
tioles elongated, very hairy. 
++ ++ Petals much larger than the calyx: achenia in globose heads. í 
10. R. Purshii, Richardson. Stem floating ; immersed leaves divided 
into very numerous capillary segments, emersed ones reniform, 3 — 5-parted, the 
lobes variously divided; sepals reflexed ; achenia pointed with a short straight 
beak. — In still water, North Carolina and northward. May - July. — Stems 
29 -49 long. «i ; 
11. R. repens, L. Smooth or hairy ; leaves ternate, or the earliest ones 
3-lobed ; leaflets 3-lobed, toothed ; achenia strongly margined, pointed with the — 
broad and straight or slightly-curved beak ; stems erect or prostrate, often bear- 
ing long runners. — Rich soil, chiefly in the upper districts. Var. y in the river 
swamps of the low country. March and April. 
‘Var. 8. hispidus. Hirsute; stem erect; leaves ample; peduncles long, 
with the hairs appressed. ` (R. hispidus, Mx. R. Marilandicus and tomentosus, 
Poir: the latter a form with softer pubescence.) 
Var. y. nitidus. Smooth or nearly so; stem prostrate (19 - 29 long); 
leaves and flowers smaller. (R. nitidus, Muhl.) 
12. R. palmatus, Ell. Hirsute with appressed hairs ; leaves small (1^ 
wide), ternate or 3-parted, with the divisions ovate, sparingly toothed, those of the 
upper leaves lanceolate and entire ; achenia strongly margined, straight-beaked. 
(R. Carolinianus, DC.) — Swamps in the pine barrens, Middle Florida to South 
Carolina, rare. — April and May. Stems 19 high. | 
13. R. bulbosus, L. Hairy; stem erect (19 139 high) from a bulb-like 
base ; leaves ternate ; leaflets 3-parted, with toothed lobes ; those of the upper 
leaves lanceolate, entire ; flowers large (1' wide) ; achenia pointed with a short 
recurved beak. — Low grounds in the upper districts. Introduced. May. 
14. R. aeris, L. “Hairy; stem tall (29-39), branched above; leaves 
3-parted, the divisions deeply cut into three wedge-shaped or lanceolate, acutely- : 
with a short recurved beak.— Low waste places, sparingly introduced from — 
ioa 
