RANDNCULACEJE. (CROWFOOT FAMILY.) 5 



gether, opposite or whorled, and forming an involucre remote from the flower. 

 (Name from avcpos, the wind, because the flower was thought to open only when 

 the wind blows.) See Addend. 



* Pistils many, crowded in a very dense head, clothed with long matted wool in fruit: 

 sepals downy or silky underneath. 



1. A. parvifldra, Michx. (SMALL ANEMONE.) Somewhat pubescent ; 

 stem slender and simple, one-flowered ; leaves roundish, 3-parted, their divisions 

 wedge-shaped, crenate-lobed ; involucre of 2 almost sessile leaves ; sepals 6, oval, 

 whitish; head of fruit globular. Lake Superior; thence northward. Plant 

 2' -12' high. 



2. A. iiiultifida, DC. (MANY-CLEFT ANEMONE.) Silky-hairy; prin- 

 cipal involucre 2-3-leaved, bearing one naked and one or two 2-leaved pedun- 

 cles ; leaves of the involucre short-petioled, similar to the root-leaves, twice or 

 thrice 3-parted and cleft, their divisions linear; sepals 5-8, obtuse, red, sometimes 

 greenish-yellow or whitish; head of fruit spherical or oval. Rocks, Western 

 Vermont and Northern New York, Lake Superior, &c. : rare. June. Plant 

 6' -12' high : sepals ^ long. 



3. A. cyliiidrica, Gray. (LONG-FRUITED ANEMONE.) Slender, 

 clothed with silky hairs ; flowers 2-6, on very long and upright naked pedun- 

 cles ; leaves of the involucre long-petioled, twice or thrice as many as the flower- 

 stalks, 3-divided ; their divisions wedge-shaped, the lateral 2-parted, the middle 

 one 3-cleft ; lobes cut and toothed at the apex ; sepals 5, obtuse, greenish-white ; 

 head of fruit cylindrical (!' long). Sandy or dry woods, Massachusetts and 

 Rhode Island to Wisconsin and Illinois. May. Plant l-2 high. Pedun- 

 cles 7' -12' long, all appearing together from the same involucre, and naked 

 throughout, or sometimes part of them with involucels, as in No. 4. 



4. A. Virgiiiiaiia, L. (TALL ANEMONE.) Hairy; principal involucre 

 3-leaved ; the leaves long-petioled, 3-parted ; their divisions ovate-lanceolate, pointed, 

 cut-serrate, the lateral 2-parted, the middle 3-cleft ; peduncles elongated, the 

 earliest naked, the others with a 2-leaved involucel at the middle ; sepals 5, acute, 

 greenish (hi one variety white and obtuse) ; head of fruit oval or oblong. Woods 

 and meadows ; common. June -August. Plant 2 -3 high ; the upright pe- 

 duncles 6' -12' long. In this and the next species the first flower-stalk is leaf- 

 less ; but from the same involucre soon proceed one or two lateral ones, which 

 are 2-leaved at the middle; these partial involucres in turn giving rise to similar 

 peduncles, thus producing a succession of flowers through the whole summer. 



* * Pistils fewer, in a rather loose head, hairy or pubescent. 



5. A. Pennsylvanica, L. (PENNSYLVANIA^ ANEMONE.) Hairy , 

 involucres (or stem-leaves) sessile; the primary ones 3-leaved, bearing a naked 

 peduncle, and soon a pair of branches or peduncles with a 2-leaved involucre 

 at the middle, which branch similarly in turn ; leaves broadly wedge-shaped, 3- 

 cleft, cut and toothed ; radical leaves 5 - 7-parted or cleft ; sepals obovate, white ; 

 head of fruit spherical ; the carpels flat, orbicular, hairy. W. New England 

 to Ohio and Wisconsin. June -Aug. Plant rather hairy, 6' high when it be- 

 gins to blossom, but continuing to produce branches, each terminated by a naked 

 peduncle, through the summer ; flowers 1^' broad, handsome. 



1 * 



