36 RANUNCULACE.E. Ranunculus. 



cylindraceous head. — Suppl. 272; Poir. Diet. vi. 120; Hook. Fl. Bor.-Am. i. 19; Terr. & 

 Gray, Fl. i. 22. R. Canadensis, Jacq. Misc. ii. 343, & Ic. liar. t. 105. R. trifoUus, Moeuch, 

 Metli. Suppl. 70. R. hispidus, Pursh, Fl. ii. 395, not Miclix. R. fuscicularis, Wats. Bot. 

 King Exp. 9 ? a dwarf form. — Wet ground, Upper Georgia to Nova Scotia, and westward 

 to Ari7Aina and Fort Colville on the Upper Columbia, &c. 



R.* Macounii, Brixton.^ Ascending or declined, usually but not always hispidly hirsute 

 witli spreading hairs, annual or biennial, but the fascicled roots sometimes thickened and 

 more enduring : stems few-leaved, 6 to 20 inches long : leaves all ternately compound ; leaf- 

 lets mostly slender-petiolulate and broadly ovate in outline, 3-parted or cleft into rhomboidal 

 or narrower and laciniate mostly acute segments and lobes : peduncles rather long : petals 

 ol)ovate, mostly 3 lines long, surpassing the spreading or liardly retlexed and early decidu- 

 ous calyx : akeues mostly a line and a half long, with short and straight (about half line 

 long) beak formed of the whole flat subulate style ; the head (as in all but the last preced- 

 ing species) globular or at most oval. — Trans. N. Y. Acad. Sci. xii. 3. R. hisjndus, Hook. 

 Fl. Bor.-Am. i. 19; Torr. & Gray, Fl. i. 22, not Michx. R. repens, var. hispidus, Torr. & 

 Gray, Fl. i. 658, in part. — Moist ground, Canada and north shore of Lake Superior to 

 Saskatchewan and northward, south to New Mexico, Thurber, and Utah, west to Oregon 

 and Brit. Columbia. Reclining summer stems seldom if ever rooting. Species sometimes 

 confounded with R. Pennsijlvanicus, sometimes with R. septentrional is. R. hispidus, var. 

 Orei/anus, Gray, Proc. Am. Acad. xxi. 376 (R. nitidus, Hook. Fl. Bor.-Am. i. 20, in part), is 

 a smoothish form, common in shaded and wet grounds, from Oregon, Howell, Suksdorf, &c., 

 to Fraser liiver.2 



O O O O Ascending, also creeping by procumbent rooting branches or stolons : short sub- 

 ulate style stigmatose for its whole length and all or nearly all of it persisting in the beak. 



R. repens, L. Soft-hirsute or pubescent, sometimes almost glabrous : principal leaves of 

 ovate or roundish outline, not rarely white-variegated or spotted, some only 3-parted, more 

 divided into 3 rhombic-ovate 2-3-lobed and incised leaflets, the middle and often the lateral 

 ones petiolulate, sometimes these again 2-3-parted ; lobes and teeth of lower leaves obtuse : 

 petals broadly cuneate-obovate, a third to half inch long : calyx spreading : akeues over a 

 line long. — Spec. i. 554; Fl. Dan. t. 795; Curt. Fl. Lond. iv. t. 38; Reicheub. Ic. Fl. Germ, 

 iii. t. 20, but only partly of Amer. authors. R. prostratus, Poir. Diet. vi. 113 ; Eaton, Man;' 

 ed. 5, 358. R. Clintonii, Beck, Bot. 9. — Low grounds, Nova Scotia ^ and Canada to Vir- 

 ginia, generally in waste grounds near the coast, but also on river-banks well in the interior, 

 and in New Mexico, Nevada,'* &c., where it is manifestly indigenous ; flowering later than 

 R. septentrionalis. (Eu., Asia.) 



4 Long-sti/led and mostly long-beaked : i. e. styles more or less elongated and attenuate 

 upward, introrsely stigmatose only at and near the tip, sometimes all persistent, l)ut 

 mostly with the slender upper portion deciduous from the beak at maturity or fragile. 



Petals 5 : primary radical leaves or some of them (at least in dry soil) commonly 

 undivided and only 3-parted, but succeeding ones 3-5-foliolate. 



R.* hispidus, Michx.^ Stems rather slender, 6 inches to 1| feet high, flexuous, hirsute or 

 villous especially when young, sometimes glabrate : pubescence of the lower part commonly 

 spreading, of the leaves appressed : root a cluster of stout fibres : leaves palmately 3-pafted 

 or pedately and somewhat pinnately 3(-5)-divided ; segments or leaflets ol)long-oblauceolate 

 to obovate, usually narrowed at the base, usually acutely toothed and somewhat irregularly 

 cleft : flowers large : petals much exceeding the sepals : head of carpels globose to ovoid ; 

 akenes snborbicular, rather numerous, strongly margined and tipped with a subulate per- 

 sistent straightish or slightly curved style. — Fl. i. 321 ; Britton, Trans. N. Y. Acad. Sci. 



1 Name substituted for the one used in Dr. Gray's manu.script; see foot-note 5, below. 



2 Al.so at Sproat and Kootenai Lake, Brit. Columbia, ace. to J. M. Macoun, Bot. Gaz. xvi. 285. 



3 Newfoundland, Robinson k Schrenk, 



4 Humboldt Co., Calif., Marshall, ace. to Greene, Pittonia, ii. 38; and frequent in lawns about Sau 

 Francisco, ace. to Greene, Man. Bay Reg. 3, where doubtless introduced. 



6 Tliis and the following two species are here interpreted in the light of Dr. Britton's revision 

 cited. Dr. Gray liad in his manuscript notes, made in Paris in 1887, already separated the R. hispidus 

 of -Michx. from tliat of Hooker. 



