1. Anatomical studies in xerophytic apophyllous plantS. II Additional species from South American shrub, steppes;Böcher;Det Kongelige Danske Videnskabernes Selskabs Biologiske Skrifter,1972
2. Branch support and tree stability;Bremer;Cladistics,1994
3. Evolution in the Myrtaceae - evidence from inflorescence structure;Briggs;Proceedings of the Linnaean Society of New South Wales,1979
4. Genera of Rhamnaceae in the southeastern United States;Brizicky;Journal of the Arnold Arboretum,1964