Ranunculds. RANUNCULACE^. 17 



Sir W. Hooker refers R. reptans to R. Flammula, and should we have adopt- 

 ed his views were it not for tiie dilference in tlie carpels uf the two species. 

 The most connnon variety throws out numerous filiform stems, j)ruducin<T 

 leaves and roots at the joints. Leaves mostly very narrow ; hut in /?. and > . 

 inclining to lanceolate or even ovate. Flowers in P. ahout a third of an incii 

 in diameter, in the other varieties smaller. Petals obovate. Carpels roundish- 

 ovate, the beak very short and oblique. 



5. /?. pusillus (Poir.) : leaves all on long petioles ; lower ones ovate, sub- 

 cordate, entire or sparingly toothed ; upper ones linear-lanceolate ; stem erect 

 or decumbent ; petals mostly 3 (sometimes 1-5), as long as the calyx ; car- 

 pels ovate, with a minute blunt point. — Puir. diet. 6. p. 99 ; Pursh, Jl. 2. p. 

 :U2; Ell.sk.2. p. 58; BC. prodr. 1. p. 32; Deless. ic. 1. t.2S. R. 

 Flammula, Michx. ! Jl. 1. p. 221; Wait. Car. p. 159. 



(i . denticrdatu.^ : leaves acutely and remotely repand-denticulate, lowest 

 ones ovate-lanceolate ; those of the stem lanceolate-linear ; flowers minute ; 

 carpels roundish-ovate. 



Y. mxUicus : resembling a. but the carpels very smooth and without any 

 beak; tlowers very small. 



S. oblong if oliu.'i : leaves petiolate, denticulate, lower ones oblong-oval, up- 

 per ones linear-lanceolate ; petals a little longer than the calyx ; carpels 

 globose, not pointed, smooth. — R. oblongifolius. Ell. sk. 2. p. 58. 



Boggy places. Var. a. North Carolina ! to Georgia. /?. Texas, Drum- 

 mond ! y. New York ! to Pennsylvania. <5. near Savannah, Georgia ! 

 Elliott! — The varieties y- fin'l ^» may prove to be distinct species. — This 

 species would be referred to Casalea, St. Hil. 



6.7?. Cijmhalaria (Pursh): stoloniferous ; leaves cordate-ovate or reniform, 

 petioled, obtuse, coarsely crenate ; scape 1-3-fiowered ; petals spatulate, 

 rather longer than the calyx. — Pursh ! Jl. 2. p. 392 ; Hook. Jl. Bor.-Am. 1. 

 p. 11. R. Cymbalaria P. Americana, DC. prodr. l.p. 33. 



/?. alpinus : very small ; leaves 3-toothcd at the apex ; scape 1-flowered.^ 

 R. halophyllus, Schlecht. animad. hot. ? (fide Hook?) 



Arctic Sea, lat. 68°, to the coast of New-Jersey ! Salina, New-York ! 

 Salt plains of the Platte, Dr. James ! Banks of the Oregon and neighbour- 

 ing streams, as well as on the contiguous coast of the Pacific, Nuttall ! 

 0. Summits of the Rocky Mountains, Drummond., &c. August — Scapes 2- 

 6 inches high, with one or two minute linear leaves. Stolons extensively 

 creeping. Leaves glabrous, somewhat fleshy, roundish-ovate or oblong. Se- 

 pals oval, concave. Petals 5-8. Carpels ovate, acute, compressed, with seve- 

 ral elevated ribs, disposed in dense oblong heads. — Very near R. salsuginosus, 

 Pall. The Siberian plant is commonly smaller than the North American 

 variety, but in other respects there is no essential diflference. 



♦** Leaves more or less divided : Jloioers yellow. 



C^ 7. R. Pallas^ii (Schlecht.) : stem creeping, fistulous ; leaves oval or obovate, 

 cuneiform, 3-parted ; sepals 3 ; petals 8 ; head of carpels spherical ; carpels 

 thick, ovate, glabrous, beaked. Schlecht. animad. hot. l.p. 15. t. 2; Hook. 

 Jl. Bor.-Am.\ p. 10. 



On the western shore of extreme Arctic America, beyond Behring's Straits. 

 Chamisso. — AUied to Ficaria. 



8. R. auricom,us (Linn.) : leaves glabrous, radical ones petioled, cordate, 

 mostly 3-parted or lobed ; cauline ones divided into linear entire or slightly 

 toothed lobes; calyx pubescent, shorter than the petals. DC. prodr. l.p. 33. 



Greenland. — Pursh records this species as a native of Pennsylvania, but 

 no other botanist has found it in any part of the United States. 



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