References

For Frangula

Brizicky, G.K. 1964a. The genera of Celastrales in the southeastern United States J. Arnold Arb. 45: 206-234. Google Scholar

Hauenschild, F., A. Favre, G.A. Salazar, and A.N. Muellner-Riehl. 2016b. Analysis of the cosmopolitan buckthorn genera Frangula and Rhamnus s.l. supports the description of a new genus, Ventia. Taxon 65: 65-78. Google Scholar

Hauenschild, F., S. Matuszak, A.N. Muellner-Riehl, and A. Favre. 2016a. Phylogenetic relationships within the cosmopolitan buckthorn family (Rhamnaceae) support the resurrection of Sarcomphalus and the description of Pseudoziziphus gen. nov. Taxon 65: 47-64. Google Scholar

Medan & Schirarend. 2004. In Kubitzki, K., ed. 2004. The families and genera of vascular plants. VI. Flowering plants – Dicotyledons – Celastrales, Oxalidales, Rosales, Cornales, Ericales. Springer, Berlin. 489 pp. Google Scholar

Nesom. In prep. In FNA. Google Scholar

Sawyer, J.O., and G.L. Nesom. 2016. Frangula. In Flora of North America Editorial Committee. 2016. Flora of North America north of Mexico. Volume 12, Magnoliophyta: Vitaceae to Garryaceae. Oxford Univ. Press, New York, NY. 603 pp. Google Scholar