RAXUNCULACEJE. 



leaves 3-lobed, lobes oblong, linear, entire or crenately incised; sepals reflexed; 

 carpels small, numerous, in cylindrical heads. 



Wet ditches. May— August. Per. Stem a foot high, thick and hollow. Flowers 

 email, numerous, pale yellow. Head sometimes an inch in length. Juice very 

 acrid. 



7. E. repens, L. Creeping Crowfoot. 



Stem branching from the base ; leaves ternate ; leaflets wedge-form, 3-lobed incisely 

 dentate; central one petiolate; peduncles furrowed; calyx pilose, spreading; petals 

 obovatc, larger than the spreading calyx; carpels with a straight point strongly 

 margined. 



Moist or shady places. May— August. Per. Very variable in size, commencing 

 to flower by upright stems 1 to 2 feet high, increasing by long runners. Flowers 

 middle size, bright yellow. Petals often emarginate. Leaves hairy on the veins, 

 dark green. Petioles long, hairy. 



8; E. Pennsylyanicus, L. Pennsylvanian Crowfoot. 



Stem erect, and with the petioles covered with stiff spreading hairs ; leaves ternate, 

 villous, segments subpetiolate, acutely 3-lobed, incisely serrate; calyx reflexed, 

 rather longer thau the small petals; carpels pointed, with a short straight beak, 

 collected into an oblong head. 



Wet places : common. July and August. Per. Stem 1 to 3 feet high, usually 

 much branched. Flowers email, pale yellow. Carpels viscid, nearly allied to the 

 next species, but distinguished by its oblong heads of carpels, shorter style, ani 

 much smaller flowers. 



9. E. HISPIDUS, Mich. Hairy Crowfoot. 



Stem erect, branched, and with the petioles covered with stiff spreading hairs - 

 leaves ternate or 3-parted; leaflets or segments acutely lobed; pubescence of the 

 pedicels appressed ; calyx hairy, at length reflexed ; carpels in a globose head, mar- 

 gined, compressed, smooth: style short and straight. 



Wet grounds. June — August. Per. Stem 18 inches high, very hairy. Lower 

 leaves on long petioles : vpper ones nearly sessile ; leaflets nearly all petioled, 3-cleft 

 or 3-parted, alternate at base. Flowers numerous, large, bright, yellow. 



10. R. recuryatus, Poir. Wood Crowfoot. 



Stem erect and with the petioles clothed with speading hairs: leaves 3-parted, 

 hairy ; segments oval, subincised, the lateral ones 2-lobed ; calyx reflexed ; petals 

 lanceolate; carpels crowned with a sharp, hooked style. 



Shady woods and damp places. May — July. Per. Stem 12 to 15 inches high, 

 sparingly branched, often dichotomous at the summit. Lower leaves somewhat 

 ovate at base, on petioles 2 to 6 inches long which are sheathing at base ; vpper ones 

 6ubsessile and 3-parted quite to the base. Flowtrs small, pale yellow, on short 

 peduncles. Whole plant pale green. 



11. E. eascicularis, Muhl. Early Crowfoot. 



Stem erect, branched, clothed with appressed hairs; leaves on long petioles, pu- 

 bescent, pinnately divided, the lobes oblong, obovate, pinnatified; calyx villous, 

 spreading, shorter than the petals ; carpels orbicular, crowned with a slender subu- 

 late style, collected into a subglobose head. 



Woods and hills. April and May. Per. Fort a fasicle of fleshy fibres. Stem 6 to 

 12 inches high. Fadical leaves on petioles 3 to 8 inches long, so divided as to appear 

 almost pinnate : vpper ones 3-parted, nearly sessile. Flowers large ; petals yellow, 

 cuneate-obovate, with a scale at the base ai broad as the transparent claw. 



12. E. bulbosus. L. Bulbous Crowfoot. 



Stem erect, hairy, bulbous at the base; leaves ternate, or quinate-pinnate; leaflets 

 3 to 5 parted ; segments trifid or incised : peduncles sulcate : calyx reflexed, hairy ; 

 carpels tipped with a very short beak ; collected into a very globose head. 



