J'otenWIa. ROSACE^.. ^ ^O 



Var. expansa, Watson. Less densely tomentose above : cymes looselv rixpanded 

 the llowers on lonjj; pedicels. ^ ' ^ 



SiJ^Jn'l^^rJ'^rt^i' ''"^ ^^"""^ = '""'""^' '^'°^'' ^^^^«' ^''^-^- The variety i„ 



4. P Plattensis, Nutt. Low, documbont, sparingly appressed silky-villous or 

 nearly glabrous : stems slender, 3 to 12 inches long: stipules linear-lanceolate to 

 oblong, mostly entire; leaflets 7 to 15 or more, approximate and nearly uniform in 

 size, 3 to (. lines long, ovate to oblong, ])innati(i.l or ]>arte(l into 3 to 7 or more 

 linear entire or cleft segments : flowers on slender pedicels in an open cyme • i.etals 

 2 or 3 lines long, usually a little exceeding the lanceolate calyx-lobes : carpels 25 to 

 40. — Torr. & Gray, tl. i. 439 ; Lehm. Kevis. 28, t. 6. 



and'^wlS^tcT M:Sl^V;;e;^""^ ^^"""""^^ = '"^'^•""^ "• ''^^ ^"^'^^ ^^--^^-^ -<1 Umtas. 

 5. p. gracUis, Dougl. Ascending, 1 to 3 feet high, villous and more or less 

 tomentose, sparingly leafy : leaves digitate or rarely pinnate ; leaflets usually 7 

 sometimes 5, cuncate-oblong, 1 to 2\ inches long, deeply serrate or pinnatifid with 

 inear lobes, whitetomontoso beneath, green and somewhat villous above • cyme 

 loose somewhat fastigiato : petals 3 or 4 lines long, a little excelling the 'calvx • 

 carpels 40_ or more. - Hook. J3ot. Mag. t. 2984. P. Blaschlceana, Turcz. ; Lehm' 

 Kevis. 10/, t. G4. 



n ^^i flabelliformis, Torr. h Gray. Leaflets very deeply pinnatifid. -FI. i. 440 

 P. fiabelhform.is, Lehm. ; Hook. Fl. i. 192, t. 06. 



Var. fastigiata, Watson, 1. c. Cyme shorter and more compact, more densely 

 pubescent : (.lt(Mi hm. ~P. fasf.upata, Nutt. ; Torr. <^ (!iay, Kl. i 440 



Var. rigida, Watson, 1. c. Villous, but without tonuMitum ; usually tall and 



89, t. 33 ; Watson, Bot. King Exp, 88, 



Chiefly eastward of the Sierra Nevada, from Oregon and Nevada to the Rocky Mountains 

 SrLgStf IheterrNrr- "' '^'^"'■"^^' '™'" ''' ""^'^-^^^ Monntains\hrougSe 



P. dissecta. I>ursh. Low and alpine, silky-viHous without tomentum or 

 nearly glabrous : leaves closely pinnate or as often digitate ; leaflets 5 to 7 or rarely 

 Ir/^n"" '"^' TT't I""?:"' 'r^"-"'' Pi""'^tili,l with narrow segments or coarsely 

 serrate, the segments tufted with white hairs : flowers few in an open slender cyme • 

 calyx more or less vi lous with spreading hairs : petals 2 to 4 lines long, exceeding 

 the lancoolato calyx-lobes: carpels 10 to 20 or more. — Torr. & Gray FI i 446 

 /. dtverstfoha, Lehm. Revis. 72, t. 31 ; Watson, Bot. King Exp. 86. 



/Jl?^S'™f^'''"'^^-"'i^T'' f"'' (Brewer), and on Mt. Dana at 12,500 feet altitude Bo- 

 lander. More frequent in the Rocky Mountains ; a very variable species. 



n ''• ^: Wheeleri, Watson. Small and subalpine, decumbent, silky-villous : stems 

 2 or 3 inches long, branched and flowering from near the base, leafy : leaves digi- 

 ato; leaflets 3 to 5, cunonte, 3-5.toothed at the rounde<l summit, half an inch 

 long or less; stipules entire or nearly so: lower flowers opposite to the leaves: 

 calyx 3 lines long ; bractlets a little smaller than the lobes, obtusish : p.-tals obcor- 

 date, slightly exceeding the calyx : carpels 20. — Proc. Am. Acad. xi. 148, 



In the Sierra Nevada, about the hcad-wntcrs of Kern River, at 8,200 feet altitude, Rolhrock. 



Leaven ternate. 



8. P. Grayi, Watson. Stems slen.ler, low, 3-6-flowered: pubescence scanty, 

 villous : l,.a(lets obovate or nearly orbicular, half an inch long, the truncate or 

 rounde. apex 5 - 7-toothed ; terminal leaflet long-petiolulate : bractlets obtusish, 

 only ha f as long as the calyx-lobes : petals 2 or 3 lines long, exceeding the calyx : 

 carpels 15 to 20, — Proc. Am. Acad. viii. 560. 



Yosemite Valley (Bolander, Gray); Lake Tenaya {Brewer); peaks above Owen's Lake. Kellogg. 



