2 1. RANUNCULACEJE. 



* Anthers extrorse. 

 t Fruits many, 1 -seeded, short (achenes). 



Tribe I. CLEMATIDES. Fruit with a feathery awn. Seed 

 pendulous. ^Estivation valvate or induplicate. Leaves 

 opposite. 



1. CLEMATIS. Cal. of 4 or 5 sepals. Pet.O. Carp, not burst- 

 ing, awned. Stam. and styles many. 



Tr. II. ANEtfONEJE. Seed pendulous. ^Estivation imbri- 

 cate. Leaves radical or alternate. 



2. THALICTRUM. Cal. of 4 or 5 sepals. Pet. 0. Carp, not 

 bursting, without awns. Stam. and styles many. 



3. ANEMONE. Cal. petaloid, sep. 5 9. Pet. 0. Carp, not 

 bursting, tipped with the persistent sometimes feathery styles, 

 inserted upon a thickened hemispherical or conical recep- 

 tacle. Stam. and styles many. 



4. ADONIS. Cal. of 5 sepals. Pet. 510, without a nec- 

 tary. Carp, not bursting, without awns. Stam. and styles 

 many. 



Tr. III. RANUNCULEJE. Seed erect (except in Myosurus). 

 .Estivation imbricate. Pet. with a nectariferous pore at their 

 base. 



5. MYOSURUS. Cal. of 5 sepals, prolonged into a spur at the 

 base. Pet. 5, with a filiform tubular claw. Stam. 5. Styles 

 many. Carp, not bursting, closely imbricated upon a long 

 filiform receptacle. Seed pendulous. Embryo inverted, 

 with the radicle superior. 



6. RANUNCULUS. Cal. of 5, rarely 3, sepals. Pet. 5, rarely 

 many ; nectariferous pore naked or covered by a scale. 

 Carp, not bursting, collected into a globular or elliptical 

 head. Stam. and styles many. 



ft Fruits many- seeded, bursting, long (follicles). 



Tr. IV. HELLEBORES. ^Estivation imbricate. Stam. 

 many. 



7. CALTHA. Cal. of 5 petaloid deciduous sepals. Pet. 0. 

 Follicles 5 10, many-seeded. 



8. TROLLIUS. Cal. of 5 or many petaloid deciduous sepals. 

 Pet. small, linear, flat, clawed. Follicles many, sessile. 



[9. ERANTHIS. Cal. of 5 8 petaloid deciduous sepals. Pet. 



