82 FOUNDATIONS OF BOTANY 



XI. AI^MONELLA, Spach. 



Small, perennial herbs. Leaves compound, smooth, those 

 from the root long-petioled, those of the stem sessile. Flowers 

 in a terminal umbel, slender-pedieeled. Sepals petal-like. 

 Petals none. Pistils 4-15 ; stigmas sessile, truncate.* 



1. A._thalictroides, Spach. Rub Anemone. Stem slender, 6-10 in. 

 high, from a cluster of tuberous roots. Radical leaves long-petioled, 

 twice compound in threes, leaflets oval, heart-shaped, 3-5-lobed. 

 Stem-leaves 2-3 compound in threes whorled, the long-stalked leaf- 

 lets veiny, forming an involucre of 6-9 apparently simple leaves. 

 Flowers 3-6 in an umbel, ^-f in. wide ; sepals 6-10, white. In rich 

 woods.* 



Xn. CLEMATIS, L. 



Perennial herbs or slightly woody vines, usually climbing 

 by the leaf-stalks. Leaves opposite, simple, or compound. 

 Sepals 4, petal-like. Petals very small or wanting. Pistils 

 numerous, tipped by the persistent styles which often become 

 long and plumose in fruit.* 



1. C. crispa, L. Marsh Ci-ematis. Stem climbing, a little 

 woody below, slightly downy above, 3-5 ft. high. Leaves pinnately 

 compound; leaflets 5-7, varying from lanceolate to ovate, thin, 

 entire, or 3-5-lobed. Flowers showy, perfect, solitary, on long, axil- 

 lary peduncles. Sepals lanceolate, taper-pointed, thick, wavy on the 

 margins, twice the length of the stamens, light bluish-purple, 1-1 i 

 in. in length. Tails of the ripened akenes 1 in. long, sill^. Rich 

 woods and river banks S.* 



2. C. viorna, L. Leather Flower. Stem climbing, nearly 

 smooth, 6-10 ft. long. Leaves usually pinnately compound, the 

 lowest pair often compound in threes and the upper pair simple. 

 Leaflets usually 5-7, oblong-ovate or oval, acute, firm, entire, or 

 lobed. Calyx bell-shaped, nodding ; sepals ovate, taper-pointed with 

 a short, recurved point, thick and leathery, reddish-purple, 1 in. long. 

 Tails of the akenes plumose, 1^ in. long, brownish. On river banks 

 and rich soil.* 



Xm. RANUHCULUS, Toum. 



Annual or perennial herbs. Leaves alternate, usually 

 deeply lobed or parted. Flowers axillary or in corymbs, 

 white or yellow. Sepals 3-5. Petals 3-5, flat, with a small 



