Status: this genus has been assessed for the following:
- Species in Fl. Madag: 11 (7 endemic, 4 indigenous non-endemic)
- Accepted published species: 7 (6 endemic, 1 indigenous non-endemic)
- Estimated undescribed species: 13 endemic
- Estimated total species: 20 (19 endemic, 1 indigenous non-endemic)
- Indigenous species endemism: 95%
Additional taxonomic work: in progress
Species level data entry: complete
Note: Genus under revision by: P. Phillipson (MBG) and M. Pignal (MNHN)
Contributed/compiled by: P.B. Phillipson
Updated on: 31 Oct. 2007