Parsimony analysis of cpDNA restriction site variation in subfamily Nepetoideae (Labiatae)

Parsimony analysis of cpDNA restriction site variation supports monophyly of subfamily Nepetoideae. However, a close relationship among Nepetoideae and other gynobasic‐styled Labiatae is not supported, indicating that a gynobasic style has evolved independently in at least two clades of Labiatae. The inferred relationships are congruent with the classification of Cantino, Harley, and Wagstaff (1992, Advances in labiate sciences, 27–37, Royal Botanic Gardens, Kew) but conflict to varying degrees with traditional classifications. Monophyly of four tribes of Nepetoideae also is supported.