10 DICOTYLEDONOUS PLANTS. 



more than 1 1-2 inches in length, and about the same in breadth. 

 Stems distinctly creeping like that of R. reptans; flowering 

 ones 6 8 inches high. Style short and hooked. Whole plant 

 somewhat hairy. 1 have named this species, which I must be- 

 lieve to be quite distinct, in token of my friendship for G. W. 

 Clinton, Esq. It is undoubtedly the same plant which is des- 

 cribed by Prof. Eaton in his Manual of Botany, (5th ed.) under 

 the name of R. prostratus of Lamarck. But that species, if in- 

 deed it exists, is a very obscure one, and has heretofore been 

 found only in the neighborhood of Paris. De Candolledoes not 

 mention it in his Prodromus, and Sprengel places it as a syno- 

 nym under JR. repens. Syst. Veg. ii. 556. The only description 

 of it that I have met with is in the elaborate article Ranunculus, 

 in Rees' Cyclopaedia, from the pen of the late Sir James Edward 

 Smith, 



14. R. hisjndus Mich.: erect, branched ; stem and petioles with stiff 

 spreading hairs ; leaves ternate or 3- parted ; leafetsor segments acute- 

 ly lobed ; pubescence of the pedicels appressed ; calyx hairy, at length 

 reflexed ; carpels in a globose head, margined, compressed, smooth ; 

 style very short and straight. 



HAB. Wet grounds. Can. to Car. N. to lat. 67 and from Hud- 

 son's Bay to the Pacific. June Aug. 1(. Stem 18 inches 

 high, very hairy ; Lower leaves on long petioles ; upper ones 

 nearly sessile ; leafets nearly all petioled, 3-cleft or 3-parted, at- 



, tenuate at base. Flowers about the size of R. acris. 



Hairy Crowfoot. 



15. jR. pennsylvanicus Linn.: stem erect and with the petioles cover- 

 ed with stiff spreading hairs ; leaves ternate, villous ; segments subpe- 

 tiolate, acutely 3-lobed, incisely serrate ; calyx reflexed ; carpels with 

 a short straight style, collected in an oblong head. 



HAB. Wet meadows. From the Arctic regions to Geor. July, 

 Aug. H- Stem 18 inches high. Flowers large. Distinguish- 

 ed from /?. hisjndus, to which it is most nearly allied, by its ob- 

 long head of fruit, and by its still shorter style. 



16. R. recureatus Pursh : stem erect and with the petioles covered 

 with spreading hairs ; leaves 3-parted, hairy ; segments oval, subincis- 

 ed ; the lateral ones 2- lobed ; calyx reflexed; petals lanceolate ; car- 

 pels uncinate. 



HAB. Shady woods. Throughout the TJ. S. and from Labrador to 

 the Columbia river. June Aug. !( Stem 12 15 inches 

 high. Flowers small, pale yellow. 



17. R.fascicularis MuJd. : stem erect, branched ; leaves on long pe- 

 tioles, pubescent, ternate ; the middle segment deeply 3-cleft ; lateral 

 remotely 3-lobed ; calyx spreading, shorter than the petals, villous ; 

 nectary flat, wedgeform ; pericarps rounded, compressed, collected into 

 a globose head. 



HAB. Woods. N. S. and Can. W. to Miss. April, May. If. 

 Root fascicled. Flowers large. Varies considerably in the form 



