A. - C.  Scheen, Lindqvist, C., Fossdal, C. G., and Albert, V. A., ?Molecular phylogenetics of tribe Synandreae, a North American lineage of lamioid mints (Lamiaceae)?, Cladistics, vol. 24, pp. 299?314, 2008.

H.  Meimberg, Abele, T., Braeuchler, C., McKay, J. K., de Paz, P. L. Perez, and Heubl, G., ?Molecular evidence for adaptive radiation of Micromeria Benth. (Lamiaceae) on the Canary Islands as inferred from chloroplast and nuclear DNA sequences and ISSR fingerprint data?, Molecular Phylogenetics and Evolution, vol. 41, pp. 566?578, 2006.

A. - C.  Scheen and Albert, V. A., ?Molecular Phylogenetics of the Leucas Group (Lamioideae; Lamiaceae)?, Systematic Botany, vol. 34, pp. 173?181, 2009.