2 RANUNCULACE.E. (CROWFOOT FAMILY.) 



ORDER 1. RANUNCULACE^E. (CROWFOOT FAMILY.) 



Chiefly herbs, rarely shrubs or woody vines, with watery acrid juice. 

 Leaves exstipulate, oftener divided. Flowers hypogynous, sometimes 

 irregular. Sepals few or many, separate, often colored. Petals com- 

 monly as many as the sepals, and alternate with them, or wanting. 

 Stamens mostly indefinite. Ovaries numerous and distinct, or few, or 

 solitary, 1-celled, 1 - many-ovuled. Fruit dry or baccate. Seeds anat- 

 ropous, with fleshy or horny albumen, and a minute embryo. 



Synopsis of the Genera. 



* Sepals valvate or with incurved margins in the bud. Fruit an achenium. 

 TRIBE I. CLEMATIDE^. Sepals colored. Petals none. Style persistent. Chiefly 

 vines, with opposite mostly ternately or pinuately divided leaves. 



1. CLEMATIS. Flowers solitary or cymose, when vines climbing by the coiling tendril- 



forni summit of the petiole. 



* * Sepals imbricated in the bud. Fruit an achenium. 



TRIBE II. ANEMONES. Sepals colored. Petals none. Perennial herbs. Leaves 

 alternate or whorled, variously lobed or divided. 



2. ANEMONE. Flowers solitary. Stem leaves whorled, forming an involucre under the 



flower. Achenia not ribbed nor inflated. 



3. ANEMORELLA. Flowers umbelled. Stem leaves involucrate. Achenium ribbed. 



4. THALICTRUM. Flowers corymbose or panicled. Leaves alternate. Achenium ribbed 



or inflated. 



5. TRAUTVETTERIA. Flowers corymbose. Leaves alternate, lobed. Achenium 4- 



angled. Seed erect. 



TRIBE III. RANUNCULEyE. Sepals mostly herbaceous. Petals manifest. Herbs. 

 Leaves alternate. Flowers solitary or corymbose. 



6. MYOSURTJS. Sepals spurred at the base. Leaves radical. Scape 1-flowered. 



7. RANUNCULUS. Sepals spurless. Petals yellow or white, with a pit or scale at the 



base. Stem leafy. 



8. ADONIS. Petals red, not pitted at the base. 



* * * Sepals imbricated in the bud. Fruit a follicle or berry. 



TRIBE IV. HEL.'LEBORINE.E. Sepals colored. Petals mostly irregular, or none. 

 Fruit a 1 - many-seeded follicle. 



* Petals none. 



9. CALTHA. Sepals yellow. Leaves entire. 



10. ISOPYRUM. Sepals white. Leaves ternately divided. 



* * Petals 2 -10. 



11. AQUILEGIA. Petals 5, alike, hollow, spurred. Leaves compoundly divided. 



12. DELPHINIUM. Outer sepal hollow, spurred. Petals 4, unlike. Leaves lobed. 



13. ACONITUM. Outer sepal large, hooded, enclosing the two stalked petals. 



14. HELLEBORUS. Petals 8 - 10, small, tubular, 2-lipped. Sepals regular. 



15. COPTIS. Petals 5 -G, thickened and hooded at the apex. Scape 1-flowered. 



16. ZANTHORHIZA. A shrub. Flowers regular, 5-petalled. Follicle 1-2-seeded. 



TRIBE V. CIMICIFUGE^E. Sepals colored. Petals small and flat, or none- Fruit 

 a follicle or berry. Leaves alternate. 



17. HYDRASTIS. Petals none. Fruit baccate. Stem 1-flowered. 



18. ACT^EA. Petals entire. Racemes short. Fruit a berry. 



19. CIMICIFUGA. Petals 2-cleft. Racemes long. Fruit a follicle. 



