CLEMATIS. RANUNCULACE^. 9 



§ 2 VioRNA Spach. Flowers large, hermaphrodite, 8olita,ry and 

 mostly nodding on rather long peduncles. Petals, none. Anthers 

 long and slender, pointed'. Filaments hirsute or pubescent. Ours 

 herbaceous perennials. 



Ci Donglasii Hook. Fl. i, 1. 1. 1. Stems Himple or branched, more or 

 less villous, woolly at the joints : leaves 2-3-pinnatifid with linear to linear- 

 lanceolate segments : flowers nodding, on erect naked peduncles that elon- 

 gate in fruit : sepals thick, pubescent, more or less spreading aiud woolly at 

 the apex, deep purple inside, paler'externally. High mountsins, E.; Ore- 

 gon to Brit. Columbia and the Kocky Mountains. 



C> Scottii Porter Fl. Col. 1. More or less villous with soft spreading 

 hairs; bushy; branchings froBQ a stj.iffrutescent base; ^branches erect, O-'IS 

 inches high; leaves opposite; on rather "loflg petioles, large, pinnate, with 

 some or all of the divisions 3-5-parted or 3-5-foliate ; lobes or leaflets ob- 

 long or ovate-lanceolate, acute or acuminate, 4-5 lines broad by an inch 

 long ; some upper leaves with distinctly tortuous partial petioles : flowers 

 axillary and terminal, nodding, on peduncles 3-6 inches long: sepals 4, 

 ovate, with reflexed summits, nearly an inch long, dark- or browmsh-pur- 

 ple, thickish, more or less tomentose outside : achenes silky-pubescent, 

 with densely .plumose tails 1-13^ inches long. Beaver Canyon Idaho to 

 southern Colorado. 



§ 3. Athagene DC. Flowers large, hermaphrodite, solitary on 

 naked peduncles. Sepals much exceeding the stamens and pistils, 

 spreading from the base, thin, petaloid. Anthers short, on long 

 pubescent filaments : usually some of the outermost filaments 

 enlarging to small spatulate petals. Half-woody plants that climb 

 by the petioles. 



C. verticillaris DC. Syst. i, 166. jStems slender, somewhat woody, al- 

 most glabrous ; leaves ternate ; leaflets petiolulate, ovate or suboordate, ab- 

 ruptly acuminate : flowers solitary, bluish-purple, 2-3 inches across. In 

 mountains from Idaho northward, and eastward to the Atlantic States. 



C. Columbiana T. & G. Fl. i. 11, Stems somewhat woody: leaves ter- 

 nate ; leaflets petiolulate, ovate, acute, obscurely crenulate : flowers solitary 

 1-2 inches broad, pale blue ; sepals ovate, acuminate, nearly twice the length 

 of the stamens. Wild Horse Plains Washington to the Kocky Mountains 

 and Brit. Columbia. 



C< ochfrtensis Poir. Suppl. ii, 298. C, alpina var. gccidentalis Gray.' 

 Stems wbody, trailing : , leaves biternately divided, with ovate or oblong-lan- 

 ceolate acuminate, often 3-Iobed,>irregulai-ly toothed segments :• sepals 4, lance 

 -ovate, purpiish-blue : spatulate and petaloid staminodes few and usually with 

 rudiments of anthers, or none : nai-pels glabrous with very finely plumose 

 tails 1}4 iuches long. Washington to the Bocky Mountains and Dakota. 



Trihe 2. Anemonese DC. Sepals petaloid or greenish, imbricated 

 in the bud. Pistils numerous, becoming achenes. Ovule suspended. 

 Herbs with the leaves all radical, or alternate, or whorled below 1- 

 several-Aowered peduncles. 



2 ANEMONE Tourn. Inst. 275. L Gen. n. 696. ed. 4 



Erect perennial herbs with lobed or divided leaves which are 

 all radical except thoSe that form an involucre below the flower. 

 Sepals 4-20, colored and petaloid. Petals nonis. Ovaries num- 

 erous; style short; stigma lateral; ovule suspended. Achenes 



