Givnish, Thomas J., et al. (2000). “Molecular evolution, adaptive radiation, and geographic diversification in the amphiatlantic family Rapateaceae: evidence from ndh F sequences and morphology”. Evolution54 (6): 1915-1937. doi:10.1554/0014-3820(2000)054[1915:MEARAG]2.0.CO;2.
Givnish, Thomas J., et al. (2004). “Ancient vicariance or recent long‐distance dispersal? inferences about phylogeny and South American–African disjunctions in Rapateaceae and Bromeliaceae based on ndhF sequence data”. International Journal of Plant Sciences165: S35-S54. doi:10.1086/421067.