AwEMONE. RANUNCULACEiE. KJ 



i. A. deltoidea (Hook.): sparinjjly hirsute; leaves ternato ; Icailets 

 (and those of the involucre) deltuid-ovate, undivided or 3-lol)ed, incisely 

 serrate, acute, those of the involucre sessile ; sepals 5-6, ohovate, obtuse. 

 Hook.! ft. lior.-Am. 1. ;;:-G. t. 3. /'. A. 



Oregon River, near the sea, Seoul er! Nidtall. '—Vlant 10-12 inches 

 high. " Radical leaves on long petioles rising from a fdiform rhizoma. 

 Flower solitary, on a long peduncle, as large as in A. Pennsylvanica, Avhite. 



8. A. Richardsoniana (Hook.): somewhat hairy; leaves renifonn, 

 3-5-parted, lobes slightly 3-cleft, acutely toothed ; those of the involucre 

 roundish-cuneiform, sessile 3-cleft and toothed ; sepals 6, spreading ; carpels 

 compressed, glabrous ; style long, dellexed, uncinate. Hook! ft. Bor.-Am. 

 1. p. 6. t. 4./. -4. ^ in Richards, app. Frankl. journ. ed. 2. p. 21. 



Shores of Hudson's Bay, and Rocky Mountains from lat. 55° to C8°; also 

 Unalaschka and throughout Siberia.— Plant 8-10 inches high. Radical 

 leaves mostly springing from filiform rhizomas. Head of carpels large com- 

 pared with the flower, depressed. Carpels numerous, oblong-ovate, termi- 

 nated by a long slender deflexed style, the extremity of which is curved up- 

 ward. 



9. A. cylindrica (Gray): silky-pubescent; leaves ternately divided; 

 lateral segments 2-parted, the intermediate one 3-cleft ; lobes linear-lanceo- 

 late, with the apex incisely toothed ; those of the involucre petioled ; pe- 

 duncles 2-6, rarely one ; sepals 5, obovate, obtuse ; carpels woolly, in a long 

 cylindrical head. Gray ! in ami. lye. Neiv-York, 3. p. 221. 



Western part of the State of New- York, Gray ! ; near Boston, Mr. 

 Greene ! NiUtall ! Bellows Falls, New Hampshire Mr. Carey ! Michi- 

 gan, Dr. FolwellJ Indiana., Darliiigton! May-June.— Plant 1-3 feet high. 

 Peduncles flowering simultaneously, subumbellate, 1-flowered, in fruit 

 8-12 inches in length. Leaves of the involucre 2-3 times the number of 

 the peduncles. Sepals subcoriaceous, pale yellowish-green. Style very 

 short. Head of carpels an inch in length. 



§ 4. Carpels without tails, subcompressed : pedicels several from each 

 involucre, one of them leafless and Iflowered, the others bearing a 

 2-leaved involucel. — Anemonospermos, DC. 



10. A. Virginiana (Linn.) : leaves ternately divided ; segments 3-cleft, 

 acuminate, incisely serrate, those of the involucre and involucels similar, pe- 

 tioled; sepals 5, somewhat coriaceous, elliptical ; head of carpels ovate-ob- 

 long, wooUy.— Mc/i.r. .'/. 1. p. 320 ; Pursh ! fl. 2. p. 388 ; DC. prodr. 1. p. 

 21;^ Hook.fl. Bor.-Am. \.p. 7. t. 4./. B. 



Banks of rivers and in woods, Canada! (from lat. 55°) to South Caro- 

 lina.— Plant 2-3 feet high, hairy. Peduncles elongated, 3-4 from each in- 

 volucre. Sepals acute, pale yellowish-green, silky-pubescent beneath. 

 Head of carpels three-fourths of an inch long, and half an inch in diameter. 

 —We have a variety of this plant, found near Philadelphia by Mr. Durand, 

 in which the flower is considerably larger than usual, the sepals nearly white, 

 and several of them quite obtuse. 



11. A. midtifida (DC): hauy; leaves ternately divided ; segments 

 cuneiform, laciniately 3-cleft, lobes linear, acute, those of the involucre and 

 involucels similar, on short petioles ; sepals 5-8, oval, obtuse.— Z>C;)ro(Zr. 1. 

 p. 21 ; Deless. ic. l.t. 16?; Hook. ft. Bor.-Am. I. p. 7. A. Hudsoniana, 

 Richards, app. Frankl. journ. ed. 2. p. 22. 



0. Hudsoniana (DC. l. c): stem. 2-flowered ; flower red.— A. sangui- 

 nea, Pursh ! in herb. Lamb. A. Hudsoniana P. sanguinea, Richards. I. c. 



y. globosa: stem mostly l-( sometimes 2-3-) flowered; head of carpels 

 globose. — A globosa, Nutt, ! mss. 



