Anemone. RANUNCULACEiE. 11 



April-May. — Climbing. Flowers very large, campanulate. Sepals oblong- 

 lanceolate, bright purplish-blue. 



19. C. Columbiana : peduncles 1-llowered ; leaves ternate ; leaflets ovate, 

 acute, obscurely crenulate ; sepals ovate, acuminate, nearly twice the length 

 of the stamens. — Atragene Columbiana, Nutt. in jour. acad. Philad. 7. y. 7. 



Rocky Mountains, Mr. Wyelh. March.— Flowers smaller than in C. 

 verticillaris, pale blue. Nuttall. 



X Doubtful species. 



20. C. Plukenetii (DC): peduncles l-flowercd; leaves ternate, gla- 

 brous ; leaflets elliptic or obovate, entire, obtuse ; flowers dioecious, erect. — 

 DC.prodr. I. p. 7; Pluk. aim. 109. 



Described by De CandoUe from specimens of Catesby in Banks's herba- 

 rium, supposed to be from America. 



2. ANEMONE. Linn.; DC. syst. l.p. 188. 



Involucre 3-leaved, distant from the flower; the leaflets variously incised. 

 Sepals 5-15, petaloid. Petals none. Achcnia mucronate (in § Pulsatilla 

 caudate). — Perennial herbs with radical leaves. Scapes when branched 

 bearing leaf-like involucres at each division. 



§ 1. Carpels with long bearded tails : leaves of the involucre sessile^ 

 palmately divided, with linear lobes. — Pulsatilla, DC, 



1. A. patens TLinn.): silky-viEous ; leaves 3-parted or ternate; segments 

 cuneiform, 3-clen, incised; lobes linear-lanceolate; involucre linearly many- 

 cleft; sepals 5-6.— Z>C. prodr. 1. p. 16.-(/?. ochroleuca); Hook ! f.. Bor.- 

 Am. 1. p. 4. A. Ludoviciana, Null. ! gen. 2. p. 26. A. Nuttalliana, DC. 

 prodr. I. c. p. 17; Nutt. in jour. acad. Philad. 5. p. 158. t. 8. and l.p.l ; 

 Richards. ! app. Frankl. journ. (ed. 2.) p. 21. Clematis hirsutissima, Pursh, 

 fl. 2. p. 385. 



British America as far north as lat., 67° ! Valleys of the Rocky Moun- 

 tains, Drummond, Nuttall! On' the Missouri and Platte, Nuttall! Galena, 

 lUinois ! — About a span high. Sepals an inch or more in length, duU blue or 

 purple. Tail of the carpels nearly two inches long. — Appears to be identical 

 with the European plant. 



§ 2. Carpels with long bearded tails : leaves of the involucre petioled, 3- 

 cleft. — Preonanthus, DC. 



2. A. alpina (Linn.): somewhat silky-villous ; leaves on long petioles, 

 biternately pinnatifid; leaflets laciniate, with the segments hnear, acute ; 

 those of the involucre similar; flower erect; sepals 6, spreading. Hook, f.. 

 Bor.-Am. l.p. 5; DC. prodr. 1. p. 17; Bot. mag. t. 2007. A. sulphurea, . 

 Linn. A. apiifoha, Willd. sp. 2. p. 126. 



Eastern declivity of the Rocky Mountains, lat. 52°— 55°, Drummond ; 

 Kotzebue's Sound, Capt. Beechey. —Flovfers white, with a purpUsh tinge at 

 the base. Stems from 6 inches to a foot and a half high. Heads of carpels 

 very large. Tails long, very silky, ^oo/c.— Inhabits also the mountains of 

 Europe. 



