Cercidoideae is a subfamily in the pea family, Fabaceae. Well-known members include Cercis (redbuds), including species widely cultivated as ornamental trees in the United States and Europe, Bauhinia, widely cultivated as an ornamental tree in tropical Asia, and Tylosema , a semi-woody genus of Africa. The subfamily occupies a basal position within the Fabaceae and is supported as monophyletic in many molecular phylogenies.[3][4][5][6][7][8] At the 6th International Legume Conference, the Legume Phylogeny Working Group proposed elevating the tribe Cercidae to the level of subfamily within the Leguminosae (Fabaceae).[9] The consensus agreed to the change, which was fully implemented in 2017.[2] It has the following clade-based definition:
The most inclusive crown clade containing Cercis canadensis L. and Bauhinia divaricata L. but not Poeppigia procera C.Presl, Duparquetia orchidacea Baill., or Bobgunnia fistuloides (Harms) J.H.Kirkbr. & Wiersema.[2]
Cercidoideae Temporal range: | |
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Cercis siliquastrum | |
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Phanera variegata | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Fabales |
Family: | Fabaceae |
Subfamily: | Cercidoideae Legume Phylogeny Working Group[2] |
Type genus | |
Cercis L. | |
Genera | |
See text | |
Synonyms | |
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Many genera show unique palynology.[10][11]
Genera
![Thumb](http://upload.wikimedia.org/wikipedia/commons/thumb/d/de/Lysiphyllum_hookeri_Flower.jpg/640px-Lysiphyllum_hookeri_Flower.jpg)
![Thumb](http://upload.wikimedia.org/wikipedia/commons/thumb/2/2b/Bauhinia_divaricata2.jpg/640px-Bauhinia_divaricata2.jpg)
Cercidoideae comprises the following genera[2][12][13] organized into tribes:[14]
Cercideae
- Adenolobus (Harv. ex Benth. & Hook.f.) Torre & Hillc.
- Cercis L.
- Griffonia Baill.
Bauhinieae
Extinct
Phylogeny
Molecular phylogenetics suggest the following relationships:[12][14][15][18]
Fabales |
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Notes
- Some sources treat Lasiobema as a section of genus Phanera.
References
External links
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