Loganiaceae

Loganiaceae
Strychnos nux-vomica
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Gentianales
Family:	Loganiaceae R.Br. ex Mart.[1][2]
Genera
Antonia Bonyunia Gardneria Geniostoma Logania Mitrasacme Mitreola Neuburgia Norrisia Spigelia Strychnos Usteria[3]
Synonyms
Antoniaceae Hutch. Geniostomataceae Struwe & V.A.Albert Spigeliaceae Bercht. & J.Presl Strychnaceae DC. ex Perleb[1]

The Loganiaceae are a family of flowering plants classified in order Gentianales. The family includes 13 genera, distributed around the world's tropics.

Earlier treatments of the family have included up to 29 genera. Phylogenetic studies have demonstrated that this broadly defined Loganiaceae was a polyphyletic assemblage, and numerous genera have been removed from Loganiaceae to other families (sometimes in other orders), e.g., Gentianaceae, Gelsemiaceae, Plocospermataceae, Tetrachondraceae, Buddlejaceae, and Gesneriaceae. Some classification schemes, notably Takhtajan's, break the remaining Loganiaceae even further, into as many as four families; Strychnaceae, Antoniaceae, Spigeliaceae and Loganiaceae. Recent DNA studies of the Gentianales have found strong support for the Loganiaceae (as defined here) as a clade containing 13 genera.

Genera

Antonia Pohl Bonyunia R. H. Schomb. ex Progel Gardneria Wall. Geniostoma J. R. Forst. & G.Forst. Labordia Gaudich. Logania R.Br. Mitrasacme Labill.

Mitreola L. Neuburgia Blume Norrisia Gardner Spigelia L. Strychnos L. Usteria Willd.

Excluded genera

Androya H.Perrier -> Scrophulariaceae Anthocleista[4] Afzel. ex R.Br. -> Gentianaceae Buddleja L. -> Scrophulariaceae Desfontainia Ruiz & Pav. -> Columelliaceae Emorya Torr. -> Scrophulariaceae Fagraea[4] Thunb. -> Gentianaceae Gelsemium Juss. -> Gelsemiaceae Gomphostigma Turcz. -> Scrophulariaceae

Mostuea Didr. -> Gelsemiaceae Nuxia Comm. ex Lam. -> Stilbaceae Peltanthera Benth. -> Gesneriaceae Plocosperma Benth. -> Plocospermataceae Polypremum L. -> Tetrachondraceae Potalia[4] Aubl. -> Gentianaceae Retzia Thunb. -> Stilbaceae[5]

References

1. "Family: Loganiaceae R. Br. ex Mart., nom. cons.". Germplasm Resources Information Network. United States Department of Agriculture. 2003-01-17. Retrieved 2010-12-15.
2. Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III" (PDF). Botanical Journal of the Linnean Society 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x. Retrieved 2013-07-06.
3. "GRIN Genera Records of Loganiaceae". Germplasm Resources Information Network. United States Department of Agriculture. Retrieved 2010-12-15.
4. Maria Backlund, Bengt Oxelman and Birgitta Bremer, Phylogenetic relationships within the Gentianales based on NDHF and RBCL sequences, with particular reference to the Loganiaceae, American Journal of Botany. 2000;87:1029-1043.
5. "GRIN genera sometimes placed in Loganiaceae". Germplasm Resources Information Network. United States Department of Agriculture. Retrieved 2010-12-15.

• Struwe, L., V. A. Albert, and B. Bremer 1994. Cladistics and family level classification of the Gentianales. Cladistics 10: 175–205.