For Frangula
Bolmgren, K., and B. Oxelman. 2004. Generic limits in Rhamnus L. s.l. (Rhamnaceae) inferred from nuclear and chloroplast DNA sequences. Taxon 53: 383-390.
Brizicky, G.K. 1964a. The genera of Celastrales in the southeastern United States J. Arnold Arb. 45: 206-234.
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.
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.
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.
Nesom. In prep. In FNA.
Richardson, J.E., M.F. Fay, Q.C.B. Cronk, D. Bowman, and M.W. Chase. 2000a. A phylogenetic analysis of Rhamnaceae using rbcL and trnL-F plastid DNA sequences. Amer. J. Bot. 87: 1309-1324.
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.
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