34 CROWFOOT FAMILY. 



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



* Pistils and akenes several or many in a head, l-seeded. 



.*- Petals none : sepals petaU-like. 



2. HEPATICA. Involucre close to the flower, exactly imitating a S-leaved calyx. 



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

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



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



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

 in one species), forming pointed or tailed akenes. 



4. THALICTEUM. 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 gif)oved akenes. Perennials, with 

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

 ternately compound or decompound leaves. 



H- 4— Petals and sepals both conspicuous, 6 or more. Akenes naked, short-pointed. 

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

 in a head or short spike. 



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



claw, which is hollow at its apex. Akenes in a long tail-shaped spike.' 



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



claw. Akenes in a head. < 



** Pistils several, i-omded, becoming 1-2-seeded pods or berries. > 



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



2-lobed, on a claw. Stamens 5 - 10. Little pods l-seeded. Undershrub, 

 with yellow wood and roots. 



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



berry-like. Low perennial., 



# * * Pistils several, few, or one, forming several-seeded pods or rarely berries, 

 *- Sepak (4 or b) falling when the flower opens, petal-like. Petali minute, and witji 

 claioSt or rume. Stamens numerous, white. Leaves ternately decompound. 



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



raceme or cluster. 



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

 H- H- Sepals not falling when the flower opem, in 15 aTid 20 persistent even till the 



fruit matures, in all the others petal-like and deciduoits. 

 ++ Petals none at all; flowers regular. 



12. C ALTHA. Sepals 6-9. Pods several. Leaves simple and undivided, rounded. 

 *+ ++ Petals 5 or more incoTispicuous nectar-bearing bodies, very muck smaller than 



the sepals : flower regular. 



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



Pods sessile. Leaves 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. HELLEBOEUS. Sepals 5, persistent, enlarging and turning green after flow- 



ering! Petals hollow and a-lipped. Leaves palmatelv or pedately divided. 



16. NIGELLA. Sepals 5. Petals 2-16bed. Pods 3-5 or more united below into 



one ! Annuals, with finely dissected leaves. 

 +++*+* Petals large hollow spurs projecting between the sepals : flower regular. 



17. AQUILEGIA. Sepals 5.. Pistils about 6, with slender styles, and forming 



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

 ++ H-t *+ «. Petals 2 or 4, much smaller than the 6 unequal sepals : i. e. the flower 

 irregular and unsymmetrical Leaves palmately lobed or parted. Pods\-b. 



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



upper pair of pletals : lower pair of petals spurless or wanting. 



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



very long-olawed and peculiar little petals. 



*+++++ H-nH- Petals large and flat, of ordinary shape. Sepals herbaceous and 

 persistent ! Flowers large, regular. 



20. PjEONIA. A fleshy disk surrounds the base of the 2 or more pistils, which 



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

 with compound or decompound leaves : one species shrubby. 



