Ranunculus. RANUNCULACE.E. 23 



(i. Nelsonii (DC.) : lobes of the leaves appoximatc ; pedicels approximate ; 

 pubescence of the pedicels apprcssed. Hook. I. c. 



y. stem and leaves nearly glabrou?;. Honk. I. r. 



6. stem and petioles retrorsely and hispidly pilose with reddish hairs ; pedi- 

 cels very short ; petals often abortive. 



Shady rich soils, Labrador to Georgia! ,5. Oregon River, Dr. Scnulcr ! 



0. Unalaschka. )-. Oregon and Canada. May-June.— About a foot high. 

 Leaves 2-3 inches in diameter, the outline pentangular, all of them petiolate; 

 lobes dilated, coarsely toothed and incised. Flowers few, very small, on 

 short peduncles. Sepals oblong. Petals always shorter than the sepals, and 

 often scarcely half their length, pale yellow. Scale very conspicuous, cuneate, 

 bidentate at the summit. Carpels much compressed ; the beak very slender, 

 about half the length of the carpel. 



33. R. Carolinianus (DC.) : stem erect, with a few slender branches, 

 hairy, the hairs on the lower part somewhat spreading, above appressed ; 

 radical leaves cordate, 3-lobed or 3-parted ; lobes ovate, subincised or cre- 

 nately toothed ; cauline ones 3-parted, Avith the lobes linear-lanceolate and 

 nearly entire ; sepals shorter than the oblong-obovate petals ; carpels few, con- 

 spicuously margined, with the beak broad and nearly straight.— />C'. syst. 



1. p. 292. R. palmatus, Ell. sk. 2. p. 61. R. lanuginosus, Pursh, ji. 2. p. 

 294? 



Pine-barren swamps, South Carolina, Elliott. West Florida, Dr. Chap- 

 man! April-May.— Stem 12-18 inches high, slender, the upper part pro- 

 ducing several long 1-flowered branches. Leaves scarcely more than an 

 inch in length and breath ; lobes rhombic-ovate, obtusely toothed. Flowers 

 about half an inch in diameter. Carpels 5-8, large, the margin almost 

 winged. — A very distinct species, allied to R. occidentalis, Nictt.j but easily 

 distinguished by the short nearly straight beaks of the carpels. 



34. R. tomentosus (Poir.) : stem ascending, very villous with spreading 

 hairs, 1-2-flowcred ; leaves tomentose. petiolate, 3-cleft ; the upper ones ses- 

 sile, ovate, undivided ; calyx very villous, somewhat rcflcxed. DC. — Pair, 

 diet. 6. p. 127 ; DC. syst. 1. p. 292 ; Ell. sk. 2. p. 264; Pursh, fi. 2. p. 394. 



In South Carolina, Bosc. — Root fibrous-fasciculate. Stern short, as- 

 cending at the summit, densely clothed with soft spreading hairs. Leaves 

 3-cleft r segments 3-lobed, ovate, dentate, with the pubescence appressed. 

 Petals obovate, a little longer than the calyx. DC.—De Candolle remarks 

 of this obscure species that it resembles R. pubescens and R. Marilandicus. 

 He refers to it R. tomentosus of Pursh, whose specimen in Lambert's her- 

 barium is too imperfect for comparison. He also refers R. lanuginosus of 

 Pursh both to R. tomentosus and R. Carolinianus, noting it, in the latter in- 

 stance, with the mark (!); but we did not observe any Purshiau specimens 

 of that species in Lambert's herbarium. Is R. tomentosus, Poir. a variety 

 of R. repens ? 



35. R. ienellus (Nutt.! mss.): " leaves somewhat hairy on the upper side, 

 the radical ones on long petioles, cordate, 3-5-cleft; the divisions 2-3-cleft, 

 acute ; those of the stem 3-parted or entire ; stem slender and someAvhat 

 spreading, smooth ; flowers minute ; carpels much compressed, smooth, with 

 a minute curved style. 



" Shady woods of the Oregon and AVahlamet Rivers," Nuttall .'—Stem U 

 -2 feet high, nearly naked, almost filiform. Leaves an inch long.— FloAvers 

 as large as in R. sceleratus. Sepals hairy. Petals obovate, a little larger 

 than the sepals. Peduncles much elongated in fruit. Carpels 6-8, suborbicu- 

 lar ; the style slender and very short. 



36. R. fascicularis (Muhl.): plant clothed Avith an appressed silky pubes- 

 cence; stem short, erect or spreading; leaves pinnately divided; segments 



