Ranunculits. RANUNCULACEiE. 21 



the lobes somewhat ovate ; cauline ones nearly sessile, palmate ; stem erect, 

 about 1-Howered ; calyx very hirsute, shorter than the obovate entire petals ; 

 style nearly straight, as long as the glabrous ovaries. It. lir. I. c. j Hook.! 

 I. c. 



a. radical leaves reniform, deeply lobed ; the middle lobe cuneiform-obo- 

 vate, narrowed at the base. R. lir.— R. nivaVis, Linn. ; DC. prod r. ].]>. 

 35. 



0. radical leaves cuneiform at the base, lobed scarcely to the middle ; the 

 middle lobe semi-ovate, broad at the base ; petals round-obovate, once and a 

 half the length of the very hirsute calyx, li. Jir.—R. sulphureus, Holand. ; 

 iScklcclit. (niinuid. hot. 2. p. 15. 



y. radical leaves somewhat cuneiform at the base, or deeply lobed trans- 

 versely ; the middle lobe cunciform-obovate, narrower at the base. B. Br. 



Arctic America ! and from Labrador ! and Spitzbergen ! to Kotzebue's 

 Sound (Beechey), and the Rocky Mountains, lat. 55°. 



25. R. Eschscholtzii (Schlecht.) : leaves ciliate; radical ones petioled, 

 3-parted, the divisions lobed ; stem about 1-Howered ; calyx hirsute, shorter 

 than the petals ; carpels obliquely ovate, terminated by a short style. DC. — 

 Schlecht. animad. hot. 2. p. 16. ^ 1; DC. prodr. 1. j). 35; IIuolc. fi. Bor.- 

 Am. 1. p. 18. 



0. petals abortive or very small. Hook. I. c. 



Unalaschka, &c. N. W. America. /?. Rocky Mountains, lat. 52^-56°.— 

 Near R. nivalis. 



26. R. pedatijidus (Smith) : leaves minutely pubescent ; the radical ones 

 petioled, palmately or pedately divided, with the lobes linear and entire ; 

 scape erect, nearly naked, 1-2-flowered ; calyx spreading, somewhat villous. 

 Hook.— Smith, in Rees's cycl. ; DC. prodr. 1. p. 36 ; Hook. I.e. t. 8. B. 



Rocky Mountains, lat. 52^-55^. — Leaves somewhat ciliate. Scape 

 1-leaved, 3 inches high. Carpels disposed in a roundish head, ovale, at- 

 tenuate into a recurved style which is scarcely as long as the fruit. Hook. 



27. R. acris (Linn.) : leaves pubescent or somewhat glabrous, 3-5-part- 

 ed, with the segments deeply and laciniately trifid ; lobes lanceolate, acute, 

 the uppermost linear ; stem many-flowered ; peduncles terete ; calyx spread- 

 ino-, villous ; carpels roundish, compressed, terminated with a short recurved 

 style.— PMr«/i, fl. 2. p. 394; DC. prodr. 1. j). 36; Hook. Jl. Bor.-Am. 1. 

 p. 18. 



13. hairy ; petals oblong, 10-14.— R. Deppii, Nutt. ! mss. 



Meadows and pastures, Hudson's Bay to Pennsylvania ! H. California, 

 Nuttall ! June.— Stem 1-2 feet high, hirsute, with the pubescence appressed 

 or spreading ; sometimes nearly glabrous. Flowers large. — Butter-cups. 



28. R. repens (Linn.) : stems sending ofT from the base long prostrate or 

 creeping branches ; leaves trifoliolate ; leaflets cuneiform 3-lobed incisely 

 toothed, the middle one (and generally the lateral one also) petiolulate ; pe- 

 duncles sulcate ; calyx spreading ; carpels Avith a broad rather straight point. 

 —DC. prodr. 1. p. 38 ; Pursh, fl. 2. p. 394; DarKngt.fl. Cest. ed. 2. p. 329. 

 R. prostratus, Poir. diet. 6. p. 113. R. intermedins, Eat! man. ed. 3. R. 

 Clintonii, Beck,Jl. p. 7. R. fascicularis, Bart. fl. Philad. 2. p. 25. R. niti- 

 dus, Mnhl. cat. ed. 2. p. 56; Ell. sk. 2. p. 60; 'Hook. Jl. Bor.-Am. 1. p. 20. 

 (excl. syn. DC.) 



13. linearilobus (DC.) : prostrate ; stems very long, floriferous ; lobes of the 

 leaves very narrow. 



y. Marilandicus : stem and petioles densely hirsute with rather soft hairs; 

 leaflets distinctly petiolulate. — R. Marilandicus, Poir. diet. 6. p. 126; DC. 

 syst. 1. p. 291 ; Piirsh ! I. c. 



Wet shady places, particularly along rivers, Canada ! to Georgia ! and 



