18 GENERA. 



IV. Vessels simple, eight ; ovaries as many as the vessels, small, on the course of the 



sub-umbrella. (CiRCEADiE.) 



7. Circe. 



V. Vessels simple, four ; ovaries four, in the course of the vessels on the sub -umbrella. 



(GERYONIAD.E.) 



8. Geryonia. 



9. Tima. 



10. Geryonopsis. 



1 1 . Thaumantias . 



12. Slabber ia. 



VI. Vessels simple, four ; ovaries in the substance of the peduncle. (Sarsiad^e.) 



13. Sarsia. 



14. Bougainmllea. 



15. Lhaia. 



16. Modeeria. 



17. Euphysa. 



18. Steenstrupiu. 



