Cortes-B., R. and Motley, T.J. 2015.

Phylogeny of the Henriquezieae-Posoquerieae-Sipaneeae, a Guayanan-centered clade of Rubiaceae: implications for morphological evolution

. Phytotaxa. 206, 1 (May 2015), 90–117. DOI:https://doi.org/10.11646/phytotaxa.206.1.12.