The family has a cosmopolitan distribution.[4] The enlarged Lamiaceae contain about 236 genera[5] and have been stated to contain 6,900[4] to 7,200[5]species, but the World Checklist lists 7,534.[6] The largest genera are Salvia (900), Scutellaria (360), Stachys (300), Plectranthus (300), Hyptis (280), Teucrium (250), Vitex (250), Thymus (220), and Nepeta (200).[5]Clerodendrum was once a genus of over 400 species,[5] but by 2010, it had been narrowed to about 150.[7]
The family has traditionally been considered closely related to the Verbenaceae;[5] in the 1990s, phylogenetic studies suggested that many genera classified in the Verbenaceae should be classified in the Lamiaceae[8][9] or to other families in the orderLamiales.[1]
The alternative family name Labiatae refers to the flowers typically having petals fused into an upper lip and a lower lip (labia in Latin). Although this is still considered an acceptable alternative name, most botanists now use the name Lamiaceae in referring to this family. The flowers are bilaterally symmetrical with five united petals and five united sepals. They are usually bisexual and verticillastrate (a flower cluster that looks like a whorl of flowers, but actually consists of two crowded clusters). The leaves emerge oppositely, each pair at right angles to the previous one (decussate) or whorled. The stems are frequently square in cross section,[10] but this is not found in all members of the family, and is sometimes found in other plant families.
The last revision of the entire family was published in 2004.[5] It described and provided keys to 236 genera. These are marked with an asterisk (*) in the list below. A few genera have been established or resurrected since 2004. These are marked with a plus sign (+). Other genera have been synonymised. These are marked with a minus sign (-). The remaining genera in the list are mostly of historical interest only and are from a source that includes such genera without explanation.[11] Few of these are recognized in modern treatments of the family.
The circumscription of several genera has changed since 2004. Tsoongia, Paravitex, and Viticipremna have been sunk into synonymy with Vitex.[15]Huxleya has been sunk into Volkameria.[7]Kalaharia, Volkameria, Ovieda, and Tetraclea have been segregated from a formerly polyphyleticClerodendrum.[7]Rydingia has been separated from Leucas.[16] The remaining Leucas is paraphyletic over four other genera.[17]
Stevens, P. F. (July 2012). "Lamiales (Lamiaceae Family)". Angiosperm Phylogeny Website. Archived from the original on 21 March 2015. Retrieved 25 March 2015.
Raymond M. Harley, Sandy Atkins, Andrey L. Budantsev, Philip D. Cantino, Barry J. Conn, Renée J. Grayer, Madeline M. Harley, Rogier P.J. de Kok, Tatyana V. Krestovskaja, Ramón Morales, Alan J. Paton, and P. Olof Ryding. 2004. "Labiatae" pages 167-275. In: Klaus Kubitzki (editor) and Joachim W. Kadereit (volume editor). The Families and Genera of Vascular Plants volume VII. Springer-Verlag: Berlin; Heidelberg, Germany. ISBN978-3-540-40593-1
Yuan, Yao-Wu; Mabberley, David J.; Steane, Dorothy A.; Olmstead, Richard G. (2010). "Further disintegration and redefinition of Clerodendrum (Lamiaceae): Implications for the understanding of the evolution of an intriguing breeding strategy". Taxon. 59 (1): 125–133. doi:10.1002/tax.591013.
Cantino, P.D., Harley, R.M. & Wagstaff, S.J. 1992. Genera of Labiatae: status and classification. Pp. 511-522. In: Raymond M. Harley and Tom Reynolds (editors). Advances in Labiate Science. Richmond, Royal Botanic Gardens, Kew.
Wagstaff, Steven J.; Hickerson, Laura; Spangler, Russ; Reeves, Patrick A.; Olmstead, Richard G. (1998). "Phylogeny in Labiatae s.l., inferred from cpDNA sequences". Plant Systematics and Evolution. 209 (3–4): 265–274. Bibcode:1998PSyEv.209..265W. doi:10.1007/bf00985232. S2CID601658.
List of Genera in Lamiaceae. At: Vascular Plant Families and Genera. At: World Checklist of Selected Plant Families. At: Electronic Plant Information Center. At: Website of Royal Botanic Gardens, Kew. (see External Links below).
Scheen, Anne-Cathrine; Albert, Victor A. (2009). "Molecular Phylogenetics of the Leucas Group (Lamioideae; Lamiaceae)". Systematic Botany. 34 (1): 173–181. doi:10.1600/036364409787602366. S2CID85894904.
Zhong, Jin-Shun; Li, Jie; Li, Lang; Conran, John G.; Hsi-wen, Li (2010). "Phylogeny of Isodon (Schrad. ex Benth.) Spach (Lamiaceae) and Related Genera Inferred from Nuclear Ribosomal ITS, trnL-trnF Region, and rps16 Intron Sequences and Morphology". Systematic Botany. 35 (1): 207–219. doi:10.1600/036364410790862614. S2CID54808462.
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