3G KANlNCri-ACF-.K. lianuuculus. 



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

 Gray, Fl. i. 22. R. Canadensis, Jacq. Misc. ii. 343, & Ic. Rar. t. 105. li. trifolius, Mccnch, 

 Meth. Suppl. 70. • R. ht'spidus, rnrsh, Fl. ii. 395, not Michx. R. fascicularis, Wats. Bot. 

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

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

 R.* MacOlinii, I'.uitton.i Ascending or declined, usually hut not always hispidly hirsute 

 with spreading liairs, annual or biennial, but the f;v<cicled roots sometimes thickened and 

 more enduring : stem's few-leaved, 6 to 20 inches long : leaves all ternatoly compound ; leaf- 

 lets mostlv sleuder-petiolulate and broadly ovate in outline, 3-parted or cleft into rhomboidal 

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

 obovate, mostlv 3 lines long, surpassing tlie spreading or hardly rcflexed and early decidu- 

 ous calvx : akenes mostly a line and a half long, with short and straight (about half line 

 long) beak iormed of the whole flat subulate style ; tlie head (as in all but the l:\st i)reced- 

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

 Fl. Bor.-Am. i. I'J; Turr. & Gray, Fl. i. 22, not Michx. R. repens, var. hispidus, Tott. & 

 Gray, Fl. i. 658, in jjart. — Moi.st 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, lleclining summer stems seldom if ever rooting. Species sometimes 

 confounded with R. Pennsi/lvanicus, sometimes with R. septentrional is. R. luspidns, var. 

 Orei)mi,is, Grav, Froc. Am. Acad. xxi. 376 {R. uitidiis, Hook. Fl. Bor.-Am. i. 20, in part), is 

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

 to Fr;u;er Kiver.^ 



O O O O Ascending, also creeping l)y4)rocumbent 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 rtnver leaves obtuse i 

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

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

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

 ed. 5, 358. R. Clintonii, Beck, P>ot. 9. — Low grounds, Nova Scotia 3 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, but 

 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-foliolai;e. 



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

 viUous 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-parted 

 or i)edatelv and somewhat pinuately 3(-5)-divided ; segments or leaflets oblong-oblanceolate 

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

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

 akenes suborbicnlar, 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'.- jnanuscript; see foot-note 5, below. 



2 Also at Sproat and Kootenai Lake, Brit. Columbia, ace. to J. M. Macoun, Bot. Gaz. xvi. 28o. 

 8 Newfounilland, Robinson & Schrenk. 



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

 Francisco, ace. to Greene, ^lan. Bay Reg. 3, where doubtless intio.iuccd. 



s This and the following two species are here interpreted in the light of Dr. Britto.i s revision 

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

 of Michx. from that of Hooker. 



