Chromosome Numbers of Several Lamiaceae from Spain

Chromosome numbers of twenty taxa, almost all of them Iberian endemics, of the genera Teucrium, Sideritis, Thymus and Salvia are reported. New chromosome numbers are given for the following taxa: Teucrium homotrichum (2n=78), T. hifacense (2n=26), T. rivasii (2n=26), T. rivas-martinezii (2n=26), Sideritis edetana (2n=30), S. murgetana subsp. littoralis (2n=28), and the hybrid S. ×viciosoi (2n=27). The first count on Iberian material for Salvia pratensis (2n=18) is reported. Chromosome numbers have been confirmed for the rest of the taxa studied on material from SE Spain. Karyotype analyses and taxonomic remarks are included.