@article {Scheen:2008p3207,
	title = {Molecular phylogenetics of tribe Synandreae, a North American lineage of lamioid mints (Lamiaceae)},
	journal = {Cladistics},
	volume = {24},
	number = {3},
	year = {2008},
	month = {Jan},
	pages = {299{\textendash}314},
	abstract = {The five mint genera Brazoria, Macbridea, Physostegia, Synandra and Warnockia (Lamioideae: Lamiaceae) are all North American endemics. Together with the monotypic European genus Melittis and the Asian genus Chelonopsis, these taxa have been classified as subtribe Melittidinae. Previous morphological studies have failed to uncover synapomorphic characters for this group. We sequenced the plastid trnL-trnF region and trnS-trnG spacer and the nuclear ribosomal 5S non-transcribed spacer (5S-NTS) to assess phylogenetic relationships within Melittidinae. Standard parsimony and direct optimization (POY) analyses show Melittis, the type genus of the subtribe, as sister to Stachys. Thus, the monophyly of subtribe Melittidinae is not supported either by molecular or morphological data. However, the North American endemics form a monophyletic group that can be recognized as the recircumscribed tribe Synandreae. The molecular relationships among these genera are corroborated by both morphological and cytological data. The expected close relationship between the south-central endemics Warnockia and Brazoria and their sister relationship to the widespread genus Physostegia is confirmed. Nevertheless, most of the North American endemics are restricted to the south-east of the continent. Dispersal westwards and northwards is correlated with an increase in chromosome numbers. No specific Eurasian origin (i.e., transatlantic or transpacific) can be determined, but Synandreae are clearly distinct from the large Stachys clade, and therefore represent a separate migration into North America. (C) The Willi Hennig Society 2007.},
	keywords = {Amplification, Eastern Asia, Evolution, Intercontinental Biogeography, Multiple Sequence Alignment, Noncoding Chloroplast Dna, Origin, Regions, Subtribe Melittidinae Labiatae, Systematic Implications},
	doi = {10.1111/j.1096-0031.2007.00180.x},
	url = {http://onlinelibrary.wiley.com/doi/10.1111/j.1096-0031.2007.00180.x/abstract;jsessionid=5ED30F44114BA288929A5E842D09A1DC.d02t01},
	author = {Anne-Cathrine Scheen and Charlotte Lindqvist and Carl G Fossdal and Victor A Albert}
}
@article {Scheen:2009p3205,
	title = {Molecular Phylogenetics of the Leucas Group (Lamioideae; Lamiaceae)},
	journal = {Systematic Botany},
	volume = {34},
	number = {1},
	year = {2009},
	month = {Jan},
	pages = {173{\textendash}181},
	abstract = {The genus Leucas R.Br. includes 100 recognized species ranging in distribution from Africa through the Indian subcontinent to Queensland, Australia. Morphological cladistic studies have suggested that several other genera of Lamioideae - Acrotome, Isoleucas, Leonotis, and Otostegia (pro parte) - may be closely related to Leucas, or even nested within it. Here we use phylogenetic analysis of three plastid DNA loci, the trnL-F region, trnS-G spacer, and the rps16 intron and reach similar conclusions. Many of the morphological features used to maintain Leucas since 1810 are shared ancestral (symplesiomorphic) characters. The other genera (or subgeneric group in the case of Otostegia) are therefore defined by apomorphic states. This is particularly apparent in the case of Leonotis, with its highly specialized bird-pollinated flowers, derived within a paraphyletic and insect-pollinated Leucas. Some geographically isolated groups are monophyletic, including all Asian species of Leucas, a Socotran clade, and a large African lineage.},
	keywords = {Amplification, Biogeography, Chloroplast Dna, Evolution, Labiatae, Mints, Parsimony, Regions, Rps16, Trnl-Trnf, Trns-Trng},
	url = {http://apps.webofknowledge.com/InboundService.do?SID=2B\%2540kNem2NICHnHfl3PI\&product=WOS\&UT=000263801200018\&SrcApp=Papers\&DestFail=http\%253A\%252F\%252Faccess.isiproducts.com\%252Fcustom_images\%252Fwok5_failed_auth.html\&Init=Yes\&action=retrieve\&SrcAuth=meken},
	author = {Anne-Cathrine Scheen and Victor A Albert}
}
