Chromosomes of Salvia subgenus Calosphace (Lamiaceae), A preliminary report.

Karyotypes of 5, and chromosome numbers for 6 species of Salvia subgenus Calosphace, all belonging to Mexico, are reported. A review of the literature and the present study indicate that the genus is polybasic; it is suggested that many groups in different parts may have had polyploid origins. For the first time telo-and subtelocentric chromosomes are reported in the genus. Also, the report of hexaploidy in the genus is the first report of its kind. Voucher information:Salvia mexicana. Mexico, Morelos, Tres Marias, Ramamoorthy and Bye 3327 (MEXU).Salvia lupulina. Mexico, Michoacan, La Huacana, Carmen S. 3429 (MEXU).Salvia hidalgensis. Mexico, Hidalgo, Barranca de Tolantongo, Ramamoorthy et al. 4704 (MEXU).Salvia gravida. Mexico, Michoacan, Coalcoman, Ramamoorthy et al. 4705 (MEXU).Salvia uruapana Mexico, Michoacan, Tumbiscatio, Carmen S. 3618 (MEXU).Salbia lavanduloides. Mexico, Morelos, Tres Marias, Ramamoorthy and Bye 3325 (MEXU).