PoTENTiLi.A. ROSACE;E. 439 



8. P. Dnimihondii (Lchm.) : stem 1ici1);i(toiis, nearly oroct, lax; radical 

 leaves irrciiularly and somewhat vrrtirillaiely ]>innal(', 7-11-lbliolatf ; the 

 cauline S-foliolale ; leaflets ohovale, tnmeale, eiirieitijrm at the liase, deejjly 

 incised, nearly tilahroiis, ciliate ; stipules (lar^e) ovale, entire ; petals oheor- 

 date, veiny, twice the lengtlx ol" the calyx. Lthm.l I. c, c^ in Hook. Ji. 

 Bor.-Am. 1. p. 189, t. 65. 



Alpine woods in the Rocky Mountains noiih of the Smokinr; River, in lat. 

 56°, scarce. Drummond ! (v. sp. in herb. Huok.) — Stem li f(K)t hiph, some- 

 what hairy, few-leaved. Radical leaves on lom;; jjctioles : those oi' the stem 

 1-3, distant, on short petioles. Flowers somewhat panicled at the summit 

 of the stem : pedicels long and slender, very hairy towards the summit. 

 Lchni. 



9. P. Plfit.tr7isis (Nutt. ! mss.) : "stems decumbent, clothed, as well as 

 the leaves, with minute strigose appressed hairs ; radical leaves pinnately 7- 

 11-foliolate; tlie cauline (ai)out 2) 3-5-foliolale ; leaflets cuneiform, deeply 

 plnnatifid-inciscd, the segments oblong or linear ; those of the cauline leaves 

 much crowded ; stipules large, broadly ovate, entire; panicle few-flowered, 

 the pedicels elongated; petals obcordate, a little longer than tin? acuminate 

 calyx-segments." 



Plains of the Platte ; conmion, Nuttall ! — Stems 6-12 inches higli, 

 weak. Mr. Nuttall compares this species with P. diversifolia, which" it 

 indeed resembles, but is very distinct, ft is, judging from the figure, 

 much more nearly allied to P. Drummondii, but is a'siiialler plant, the pe- 

 dicels are not clothed with long bristly hairs, and the flowers are smaller. 



—; 10. P. diversifolia (Lehm.) : more or less silky-pubescent with long 

 white hairs ; stems ascending : radical leaves 5-7-foliolate ; the caulii^e sub- 

 sessile (1-2), 3-5-foliolate ; all either pinnate with the leaflets much crowded, 

 or pedate, or even palmate ; leaflets unequal, cuneiform, incisely toothed or 

 lobed, the lobes silky-villous at the apex ; stipules ovate-lanceolate, entire ; 

 flowers few or several, on very long divaricate or erect pedicels; petals 

 obcordate, nearly twice the length of the calyx. — Lehm. ! I. c. 6^- in Hook, 

 fl. Bor.-Am. 1. p. 190. P. glaueophylla, Lehm. delect, sem. Hamh. 1836? 

 P. campcstrls. Null. ! mss. P. dissecta ? Nutt. in jour. acad. Philad. 7. 

 p. 20, fide Nutt. 



Alpine prairies, as well as the higher summits of the Rocky Mountains 

 between lat. 52'' & 56°, Drummond! Plains of the first chain of the 

 Rocky Mountains called the Black Hills, frequent, Nuttall! — Stems 3-12 

 inches high, many from the same root. Radical leaves on long ))etioles. 

 Flowers pretty large. — The same specimen frequently presents boUi jiinnate 

 and completely palmate leaves : they are all palmate in our specimens of 

 P. campestris, Nutt. and of P. glaueophylla, Lehm., but we observe no 

 other clifFerence. 



r ^11' P' lyfilchella (R. Rrown) : dwarf; stems procumbent, about 1- 

 flowered ; leaves pinnately 3-5-foliolate, silky-tomentose beneath ; leaflets 

 pinnatifid, the lower pair smaller and often entire; the lobes lanceolate- 

 linear; stipules sheathing ; petals rather longer than the calyx. — Ji.Br.f 

 in Ross's vol/., S^- in Parry's 1st voy. suppl. p'. 277 ; Hook. ! in Parn/s 2nd 

 voy. Sf fl. Bor.-Am. 1. p. 191. P. sericea, Grcville, ex B. Br. 



Islands of the Arctic Sea! Arctic shore between the 3Iackenxie Sc 

 Coppermine Rivers, Richardson ! — The style, which is said to be " basi 

 glanduloso-dilatato," has the same structure with numerous species of thi& 

 section. 



