1. Bremer K, Friis EM, Bremer B (2004) Molecular phylogenetic dating of asterid flowering plants shows Early Cretaceous diversification. Syst Biol 53:496–505
2. Cadet de Gassicourt L (1817) J Pharmacie 3:495; fide Shellard EJ (1961a)
3. Deroin T (2001) Flore de Madagascar et des Comores, famille 171, Convolvulaceae. Muséum National d’Histoire Naturelle, Paris
4. Desfosses M (1820) Extrait d’une lettre. J Pharmacie 6:374–376
5. Desfosses M (1821) Extrait d’une lettre. J Pharmacie 7:414–417