34 CROWFOOT FAMILY. 



§ 2. Sepals imbricated in the bud. Not climbing, nor woody except in 8 atid one of 20. 



« Pistils and a&enes several or many in a head, 1-seeded. 



H- Petals none : sepals petal-like. 



2.. HEP ATIC A. Involucre close to the flower, exactly imitating a 3-leaved calyx. 

 Sepals 6 or more, oblong, resembling petals. Pistils 12-20. Steniless low 

 perennials, with rounded 3-lobed leaves and 1-flowered scapes.- 



3. ANEMONE. Involucre of 2 or more opposite or whorled green lesjves much 



below the flower. Sepals 4-20. Pistils very many iu a close head (or lewer 

 in one species), forming pointed or tailed akenes. 



4. THALICTRUM. Involucre none, and stem-leaves all alternate, except in one 



species intermediate between this genus and Anemone. Sepals 4 or more. 

 Pistils 4-15, forming several-angled or grooved akenes. Perennials, with 

 small flowers in panicles or umbels, most of them dioecious, and with 

 ternately compound or decompound leaves. 

 ^- *- Petals and sepals both conspicuous, 6 or more. Akenes naked, short-pointed. 



5. ADONIS. Petals and sepals naked, no pit or appendage at the base. Akenes 



in a head or short spike. 



6. M YOSURUS. Sepals with a spur at the base underneath. Petals on a slender 



claw, which is hollew at its apex. Akenes in a long tail-shiiped spike. 



7. EANUNCULUS. Sepals naked. Petals with a little pit or a scale on the short 



claw. Akenes In a head. 



* « Pistils several, 2-ovuled, becoming 1-2-seeded pods or berries. 



8. ZANTHORHIZA. Sepals 6, deciduous after flowering. Petals 5, small, 



2-lobed, on a claw. Stamens 5 - 10. Little pods 1-seeded. Uudershrub, 

 with yellow wood and roots. 



9. HYDRASTIS. Sepals 3, falling when the flower opens. Petals none. Fruit 



berry-lilve. Low perennial. 

 » « « Pistils several, few, or one, forming several-seeded pods or rarely berries. 

 .f- Sepals (4 or d) falling when the flower opens, pet-al-like. Petals minute, and with 

 claws, or none. Stamens numerous, white. Leaves ternately decompound. 



10. ACT.SA. Pistil only one, becoming a berry. Flowers in a short and thick 



raceme or cluster. 



11. CIMICIFUGA. Pistils 1-8, becoming pods in fruit. Flowers in long racemes. 

 1- ■>- Sepals not falling when the flower opens, in 15 and 20 persistent even till (he 



'fruit matures, in all me others petal-like and deciduous. 

 ++ Petals none at all: flowers regular. 



12. CALTHA. Sepals 5-9. Pods several. Leaves simple and undivided, rounded. 

 ++ +-*■ Petals 5 or more inconspicuous nectar-bearing bodies, very much smaller than 



the sepals: flower regular. 



13. TROLLIUS. Sepals 5 -many. Petals with a little hollow near the base. 



Pods sessile. -Loaves palmately parted and lobed. 



14. COPTIS. Sepals 5-7. Petals"club-shaped and tubular at the top. Pods 



raised on slender stalks! Leaves with 3 leaflets. 



15. HLLLEBORUS. Sepals 5, persistent, enlarging and turning green after flow- 

 ■ xn®/^'""' Petals hollow and 2-lipped. Leaves palmately or pedately divided. 



16. NIGELLAi Sepals 5. Petals 2-loibed. Pods 3-5 or more united below into 



one! .^nuals, srith finely dissected laeves. 

 ■^-^**^-<■ P^ils targi hollow spurs projecting between the sepals : flower regular. "' 



17. AQUILFXMA. Sepals 5. Pistils about B, with slender styles, and forming 



narrow pods. Perennials, with ternately compound or decompound leaves. 

 ♦* 4-f ++ H-,. Petals 2 or 4, much smaller. than the 5 unequal sepals: i.e. the fUmer-^ 

 irregular and unsymmetrical Leaves palmately lubed or parted. Pods 1-6. 



18. DELPHINIUM. Upper sepal spurred; the spur enclosing the spurs of the 



upiier pair of petals: lower pair of petals spurless or wanting. 



19. ACONITUM. Upper sepals in the form of a hood or helmet, covering the two 



very long-clawed and peculiar little petals. 

 ♦+ jH. ++ ++ M. Petals large and flat, of ordinary shape. Sepals herbaceous aneT 

 persistent! Flowers large, regular. 



20. P^.ONIA. A fleshy disk surrounds the base of the 2 or more pistils, which 



•fcfm leathery pods in fruit. Seeds large, rather fleshy-coated. Perennials, 

 iVftth compound or decompound leaves: one species shrubby. 



