Source de la synonymie
Funk, V., Hollowell, T., Berry, P., Kelloff, C. & Alexander, S. N. 2007. Checklist of the Plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana). Contributions from the United States National Herbarium, 55: 1-580. [CD_REF = ]

 

Source de la synonymie
Fader, A. A. C., Salas, R. M., Dessein, S. & Cabral, E. L. 2016. Synopsis of Hexasepalum (Rubiaceae), the Priority Name for Diodella and a New Species from Brazil. Systematic Botany, 41(2): 408-422. [CD_REF = ]

 

Changement d'autorité : Autorité généralement citée comme "Willd. ex Roem. & Schult. 1818". Tropicos note: "authorship is according to ICN Art. 46.3 (Ex. 12).[Note: treated as "Willd. ex Roem." by several authors but protologue ascribes name and description to Willd., thus "in". Authorship of Syst. Veg. 15bis has been ascribed to "Roem. & Schult." by some authors, but the ICBN was revised recently and now removes Roem. from authorhship of this work - CMT 2016]".

Type : Brésil, Pará, 1801-1812, Sieber [in Hoffmannsegg] s.n. (HT: B-W-2628).