82 
tLeaves palmately nerved or seer 
divided - Subtribe CALTHINAE. 
Petals present, usally — fodvicedl 
and nectariferous 
oat leaf- -segments not forming 
involucre below the 
rine wer : 
Sepals usually deciduous : 
Petals several; leaves not 
pelta 2. Trollius. 
Petals 5, club- -shaped eaves 
peltate - 3. Asteropyrum. 
Sepals persistent, hedadds petals 
trumpet-shaped or much 
reduced - 4. Helleborus. 
Upper leaf-segments formbiig an 
involucre below the flower - 5. Eranthis. 
Petals absent : 
Ovules several, in 2 or more rows; 
fruits dehiscent : 
Seeds not winged ; carpels more 
than 2: 
Ovules arranged all along the 
ventral ~ ‘suture of the 
carpe 6. Caltha. 
Ovules aeradiged near the aie 
of the carpel - 7. Calthodes. 
Seeds broadly winged ; canis’ 8. Glaucidium. 
Ovules 2 in each carpel, the latter 
baccate and becoming connate 9. Hydrastis. 
TtLeaves ternately or somewhat pinnately 
compound : 
tCarpels quite free from one anothe 
Subtribe IsopyRINAE. 
Staminodes absent : . 
Petals present : 
Sepals and gem numerous ; 
seeds scaly - 10. Anemonopsis. 
Sepals 5-6 : 
Carpels more than 2: 
Carpels sessile : 
Caespitose perennials ; 
carpels about 5; 
petals not tubular 11. Paraquilegia. 
eau 2 ; carpels about 
: petals tubular 12. Leptopyrum. 
Carpels SER - 13. Coptis. 3 
Carpels 2, a - - 14. Isopyrum. 
Petals pe -: : - 15. Enemion. 
