References
Drew, B.T., and K.J. Sytsma. 2012. Phylogenetics, biogeography, and staminal evolution in the tribe Mentheae (Lamiaceae). Amer. J. Bot. 99: 933-953. Google Scholar
Drew, B.T., and K.J. Sytsma. 2012. Phylogenetics, biogeography, and staminal evolution in the tribe Mentheae (Lamiaceae). Amer. J. Bot. 99: 933-953. Google Scholar