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Lamiaceae

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Not to be confused with the genus Mentha, which is also referred to as mint.

Lamiaceae
Lamium purpureum L.
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Martinov[1][2]
Type genus
Lamium
Genera
See § Genera
Lamium purpureum, showing the bilaterally symmetrical flower
Tetradenia riparia

The Lamiaceae (/ˌleɪmiˈeɪsi.iː, -ˌaɪ/ LAY-mee-AY-see-ee, -⁠eye)[3] or Labiatae are a family of flowering plants commonly known as the mint, deadnettle, or sage family. Many of the plants are aromatic in all parts and include widely used culinary herbs like basil, mint, rosemary, sage, savory, marjoram, oregano, hyssop, thyme, lavender, and perilla, as well as other medicinal herbs such as catnip, salvia, bee balm, wild dagga, and oriental motherwort. Some species are shrubs, trees (such as teak), or, rarely, vines. Many members of the family are widely cultivated, not only for their aromatic qualities, but also their ease of cultivation, since they are readily propagated by stem cuttings.[citation needed] Besides those grown for their edible leaves, some are grown for decorative foliage. Others are grown for seed, such as Salvia hispanica (chia), or for their edible tubers, such as Plectranthus edulis, P. esculentus, P. rotundifolius, and Stachys affinis (Chinese artichoke). Many are also grown ornamentally, notably coleus, Plectranthus, and many Salvia species and hybrids.

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 order Lamiales.[1]

Salvia jurisicii

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.

Genera

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Leucas aspera in Hyderabad, India
Orthosiphon thymiflorus flower
Oregano
Plectranthus ecklonii

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.

Kew Gardens provides a list of genera that includes additional information.[12] A list at the Angiosperm Phylogeny Website is frequently updated.[13] Plants of the World Online currently accepts 227 genera.[14]

Recent changes

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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 polyphyletic Clerodendrum.[7] Rydingia has been separated from Leucas.[16] The remaining Leucas is paraphyletic over four other genera.[17]

Subfamilies and tribes

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In 2004, the Lamiaceae were divided into seven subfamilies, plus 10 genera not placed in any of the subfamilies.[5] The unplaced genera are: Tectona, Callicarpa, Hymenopyramis, Petraeovitex, Peronema, Garrettia, Cymaria, Acrymia, Holocheila, and Ombrocharis. The subfamilies are the Symphorematoideae, Viticoideae, Ajugoideae, Prostantheroideae, Nepetoideae, Scutellarioideae, and Lamioideae. The subfamily Viticoideae is probably not monophyletic.[15] The Prostantheroideae and Nepetoideae are divided into tribes. These are shown in the phylogenetic tree below.

Phylogeny

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Most of the genera of Lamiaceae have never been sampled for DNA for molecular phylogenetic studies.[18] Most of those that have been are included in the following phylogenetic tree. The phylogeny depicted below is based on seven different sources.[5][9][7][15][19][20][21]

Lamiaceae 

Callicarpa

Tectona

Viticoideae (pro parte) 
Viticoideae (pro parte) 

Vitex

Symphorematoideae 
Ajugoideae 
Prostantheroideae 
Nepetoideae 

References

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  1. ^ a b Stevens, P. F. (July 2012). "Lamiales (Lamiaceae Family)". Angiosperm Phylogeny Website. Archived from the original on 21 March 2015. Retrieved 25 March 2015.
  2. ^ Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III". Botanical Journal of the Linnean Society. 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x. hdl:10654/18083.
  3. ^ "Pronunciation of lamiaceae". Archived from the original on 2015-09-24. Retrieved 2014-11-25.
  4. ^ a b Heywood, Vernon H.; Brummitt, Richard K.; Seberg, Ole; Culham, Alastair (2007). Flowering Plant Families of the World. Ontario, Canada: Firefly Books. ISBN 978-1-55407-206-4.
  5. ^ a b c d e f g h 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. ISBN 978-3-540-40593-1
  6. ^ "World Checklist of Selected Plant Families". Archived from the original on 2017-07-09. Retrieved 2022-02-21.
  7. ^ a b c d 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.
  8. ^ 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.
  9. ^ a b 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. S2CID 601658.
  10. ^ Parnell, J. and Curtis, T. 2012. Webb's An Irish Flora. Cork University Press ISBN 978-185918-4783
  11. ^ "List of genera in Lamiaceae". In: "Lamiaceae". In: "List of families". In: "Families and genera in GRIN. (see External links below)
  12. ^ 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).
  13. ^ "APG list of Lamiaceae genera". Archived from the original on 2022-01-31. Retrieved 2022-02-21.
  14. ^ Lamiaceae Martinov. Plants of the World Online. Retrieved 14 April 2024.
  15. ^ a b c Bramley, Gemma L.C.; Forest, Félix; Rogier (2009). "Troublesome tropical mints: re-examining generic limits of Vitex and relations (Lamiaceae) in South East Asia". Taxon. 58 (2): 500–510. doi:10.1002/tax.582014.
  16. ^ Scheen, Anne-Cathrine; Albert, Victor A. (2007). "Nomenclatural and taxonomic changes within the Leucas clade (Lamioideae; Lamiaceae)". Systematics and Geography of Plants. 77 (2): 229–238. JSTOR 20649740.
  17. ^ 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. S2CID 85894904.
  18. ^ Zhao, Fei; Chen, Ya-Ping; Salmaki, Yasaman; Drew, Bryan T.; Wilson, Trevor C.; Scheen, Anne-Cathrine; Celep, Ferhat; Bräuchler, Christian; Bendiksby, Mika; Wang, Qiang; Min, Dao-Zhang; Peng, Hua; Olmstead, Richard G.; Li, Bo; Xiang, Chun-Lei (8 January 2021). "An updated tribal classification of Lamiaceae based on plastome phylogenomics". BMC Biology. 19 (1): 2. doi:10.1186/s12915-020-00931-z. PMC 7796571. PMID 33419433.
  19. ^ 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. S2CID 54808462.
  20. ^ Walker, Jay B.; Sytsma, Kenneth J. (2007). "Staminal Evolution in the Genus Salvia (Lamiaceae): Molecular Phylogenetic Evidence for Multiple Origins of the Staminal Lever". Annals of Botany. 100 (2): 375–391. doi:10.1093/aob/mcl176. PMC 2735309. PMID 16926227.
  21. ^ Ryding, P. Olof (2010). "Pericarp structure and phylogeny of tribe Mentheae (Lamiaceae)". Plant Systematics and Evolution. 285 (3–4): 165–175. Bibcode:2010PSyEv.285..165R. doi:10.1007/s00606-010-0270-9. S2CID 24076224.
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