RANUNCULACEAE 



37 



nate stalked leaves with the leaflets not falling from a dis- 

 tinct scar when deciduous; axillary solitary or clustered usual- 

 ly perfect often very large apetalous flowers with corolla-like 

 calyx; and large akenes with long often feathery style. 



1. Leaves simple. 2. 

 Leaves compound. 5. 



2. Leaves entire. 3. 



Leaves toothed: not climbing. C. Fremontii. 



3. Flowers creamy: not climbing. C. ochroleuca. 

 Flowers blue or purple. 4. 



4. Not climbing: flowers small, urn-shaped. C. integrifolia. 

 Climbing: flowers large and open. C. lanuginosa. 



5. Leaflets entire. 6. 

 Leaflets toothed. 13. 



6. Flowers urn-shaped, small: nearly herbaceous. 7. 

 Flowers open. 10. 



7. Styles hairy in fruit. 8. 

 Styles not feathery. 9. 



8. Flowers bluish or purple. C. Viorna. 

 Flowers bright red. C. texensis. 



9. Flowers bell-shaped. C. Pitcheri. 

 Flowers cylindrical. C. crispa. 



10. Styles feathery in fruit. 11. 



Styles without hairs. C. Viticella. 



11. Flowers small (scarcely 2 cm.), fragrant. C. paniculata. 

 Flowers large (some 8 cm.). 12. 



12. Flowers longer than their stalks. C. lanuginosa. 

 Flowers shorter than their stalks. C. patens. 



13. Leaves only once compound. 14. 



Leaves 1 often bipinnate, half-evergreen. C. Flammula. 



14. Leaflets only 3: flowers dioecious. C. virginiana. 

 Leaflets often more than 3: flowers perfect. C. Vitalba. 



ZANTHORHIZA. Yellowroot. 



Small simple shrubs with rather slender soft-wooded 

 stems; somewhat angular continuous pale pith; narrow trans- 

 verse low leaf-scars with about 7 bundle-traces; no stipule 



