J. A.  Rosselló, Cosin, R., Boscaiu, M., Vicente, O., Martinez, I., and Soriano, P., ?Intragenomic diversity and phylogenetic systematics of wild rosemaries (Rosmarinus officinalis L. sl, Lamiaceae) assessed by nuclear ribosomal DNA sequences (ITS)?, Plant Systematics and Evolution, vol. 262, pp. 1?12, 2006.

A. N.  Schmidt-Lebuhn, ?Monophyly and phylogenetic relationships of Minthostachys (Labiatae, Nepetoideae) examined using morphological and nrITS data?, Plant Systematics and Evolution, vol. 270, pp. 25?38, 2008.

O.  Ryding, ?Pericarp structure and phylogeny of the Lamiaceae-Verbenaceae-complex?, Plant Systematics and Evolution, vol. 198, pp. 101?141, 1995.

H. - K.  Moon, Vinckier, S., Smets, E., and Huysmans, S., ?Palynological evolutionary trends within the tribe Mentheae with special emphasis on subtribe Menthinae (Nepetoideae: Lamiaceae)?, Plant Systematics and Evolution, vol. 275, pp. 93?108, 2008.

O.  Ryding, ?Amount of calyx fibres in Lamiaceae, relation to calyx structure, phylogeny and ecology?, Plant Systematics and Evolution, vol. 268, pp. 45?58, 2007.

H.  Moon, Vinckier, S., Smets, E., and Huysmans, S., ??dots} trends within the tribe Mentheae with special emphasis on subtribe Menthinae (Nepetoideae ?dots}?, Plant Systematics and Evolution, 2008.

S. J.  WAGSTAFF, Hickerson, L., Spangler, R., Reeves, P. A., and OLMSTEAD, R. G., ?Phylogeny in Labiatae sl, inferred from cpDNA sequences?, Plant Systematics and Evolution, vol. 209, pp. 265?274, 1998.