306 



RANUNCULACEAE 



Spur cyllndric-flliform for some distance near the apex: fol- 

 hcles pubescent. 11 ^ eleaantula 



Sepals and spurs wholly yellow; spur usually slightly curved 



""rowPri T??.' nl-v.'f K ^^ 1^'^bescent beneath; spur slender, abruptly nar- 

 rowed near the base. 12 a m-irrnnihn 



IpJ^""' 8'^^™"^ o^ glabrate; spur graduaUy taperiAg to near ihe 



Spur 2.5-6 cm." long; flowers in anthesis usually erect ^^" ^' ■^'^^'"'^''"^• 

 Basal leaves usually twice ternate; spur 3-4 cm long 



bepals blue or white, ovate-lanceolate, acute or 6btuse; spur 3-5 cm 



Stem (except the upper part) and petioles glabrous. 



±^laat 6-5 dm. high; leaflets thin, rather large, not conspicuously 

 glaucous. 24 A coerulea 



glauc"ous*^™" ^^^' ^^^^^^^ ^^'^^^' small and "conspicuously 



Stem and pe°tioies glandular and villous throughout"*' ^'^^^^ ''"'""*• 



Sepals yellow, lanceolate, somewhat acuminate; sjur I'o^S^cm." long. 



Basal leaves usually thrice ternate: spur 4-7 cm. long;^^epals yeTl?w'"" 

 ^ fnllrHp^"^;,!?^'^!' ^^P""^ ess than 2 cm. long, ovate-lanceolate, acute: 

 Sn.ir <! 7 n^ 7 ^'^ curved outward. ig. A. ihalictrifolia 



^ i^r.7,7JinI?k ? 1?= f^^^}^ ^~i 2"^: 1°°-' lanceolate to ovate-lanceolate. 



19. A. chrysantha. 



1. A. Jonesii Parry Acaulescent plant, with a densely cespitose short 

 caudex, basal leaves 2-10 cm long, pubescent, biternate; blades 1-2 cm. in 

 diameter, glaucous; divisions broadly cuneate, deeply 3-5-cleft; scape 2-5 cm., 

 mrely 10 cm. long; flower erect; sepals about 1.5 cm. long; lamina of the petals 

 rn?,?;.^^".'''? u^ the apex, about 8 mm. long; spur 8 10 mm. long, somewhat 

 Suhllp—Al sl-k ''™" ^°^" ^''P^^'^^ '•o^ky summits: Wyo.— Alta. 



uJl ^.•, Eastwoodiae Rydb. Stem 4-6 dm. high, glandular-puberulent above; 

 leaves biternate; leaflets 1-2 cm. long, with oblong obtuse lobes; flowers white or 

 T.^,t+ I'o^""^ 1 l^°^e°late acute, spreading; petals nearly like the sepals; follicles 



Cockerel!. Canons: Colo. Son. Je-Jl. 



3. A. brevistyla Hook. Stem 4-10 dm. high, pubescent or glandular above: 

 basal leaves biternate; stem-leaves ternate or the upper simple and 3-lobed 

 leaHets 3-lobed and coarsely crenate; sepals blue, lanceolate, acute, about 15 

 mm. long; lamina of the petals yellowish white; spur 6-8 mm. long; follicles 2-2.5 



cm long. Meadows and open woods: Yukon— Alta.— S.D.— Minn. Plain— 

 ommont. Je-Jl. 



4 A. saximontana Rydb. Stem 1-2 dm. high; leaves all biternate; leaf- 

 lets obovate, 2-3-cleft; sepals greemsh or blue, obtuse or acutish; lamina of the 

 petals yellowish; spur 5 mm. long or less; foUicles 1-1.5 cm. long. A. vulgaris 

 brevistyla A. Gray. A. brevistyla Coulter, not Hook. Among rocks: Colo — 

 e Utah. Mont.—Suhalp. Jl-Au. 



5. A. larimiensis A. Nels. Stem 2-3 dm. high, branched; leaves, except 

 the uppermost biternate; leaflets obovate or cuneate, 1.5-2.5 cm. long 2-3-cleft 

 and again round-lobed; sepals ovate, acute; lamina of the petals cream-colored- 



^,^^. T,"^°^- ^°^^' folhcles about 1.5 cm. long. Crevices in rocks: Wvo 

 Mont. Jl-Au. •' 



1 K ■ ?" ^™°<=^** Fis?.^; ^ Mey. Stem 3-7 dm. high, sparingly pubescent or 

 glabrate; lower leaves biternate, the upper ternate; leaflets obovate. 2-6 cm. 



and round 



;um 



H^L^P''^iT!f*'i ^^""o^' elongate-conic, 1.5-2 cm. long, merely with a knob 

 at the end ,- f oUicles pubescent, about 2 cm. long. Shady places along streams: 

 B.C.— Cahf.— s Utah. Suhmont.—Mont. My-Jl. 



7. A. Columbiana Rydb. Stem 6-10 dm. high, glabrous or sparingly pubes- 

 cent above; leaves tmce ternate; leaflets obovate, 2-3 cm. long, more or less 

 glaucous beneath, 2-3-cIeft and deeply crenate at the apex; sepals and spurs 



lanceolate, acute; lamina 



