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Aurantioideae
	Tabog (Swinglea glutinosa, Citreae)
Scientific classification
Kingdom:	Plantae;
(unranked):	Angiosperms;
(unranked):	Eudicots;
(unranked):	Rosids;
Order:	Sapindales;
Family:	Rutaceae;
Subfamily:	Aurantioideae;
Tribes
	Citreae; Clauseneae
Synonyms
	Citroideae

Aurantioideae (sometimes known as Citroideae) is a subfamily within the rue and citrus family (Rutaceae). The subfamily's center of diversity is in the monsoon region of eastern Australasia, extending west through South Asia into Africa, and eastwards into Polynesia.^[1]

Notable members are, for example, the Bael (Aegle marmelos), citrus (Citrus), Clausena and Curd Fruit (Limonia acidissima) trees which bear edible fruit, or the genus Murraya which includes the spicy Curry Tree (M. koenigii) and the ornamental Orange Jessamine (M. paniculata).

[edit] Description and systematics

Micromelum minutum (Clauseneae)

Aurantioideae are smallish trees, large shrubs or (rarely) lianas. Their flowers are typically white and fragrant; their fruit are very characteristic hesperidia, usually of rounded shape and colored in green, yellowish or orange hues.^[1]

The subfamily can be divided into two tribes, the ancestral Clauseneae and the more advanced Citreae. Several genera have been recently reassigned from the latter to the former, but the arrangement of subtribes leaves much to be desired. The tribes, with subtribes listed in phylogenetic sequence and genera listed alphabetically, are:^[2]

Tribe Citreae

Subtribe Triphasiinae
- Genus Luvunga Buch.-Ham. ex Wight & Arn.
- Genus Merope M.Roem.
- Genus Monanthocitrus
- Genus Oxanthera
- Genus Pamburus Swingle
- Genus Paramignya Wight
- Genus Triphasia
- Genus Wenzelia Merr.
Subtribe Balsamocitrinae (paraphyletic with Citrinae? Formerly in Clauseneae)
- Genus Aegle Corrêa – Bael
- Genus Aeglopsis Swingle
- Genus Afraegle (Swingle) Engl.
- Genus Balsamocitrus Stapf
- Genus Feroniella Swingle
- Genus Limonia L. – Curd Fruit
- Genus Swinglea Merr.
Subtribe Citrinae (paraphyletic with Balsamocitrinae?)
- Genus Atalantia Correa (formerly in Clauseneae)
- Genus Burkillanthus
- Genus Citropsis – cherry oranges
- Genus Citrus – citrus fruits (including Eremocitrus and Microcitrus)
- Genus Clymenia Swingle
- Genus Fortunella – kumquats (probably belongs in Citrus)
- Genus Limnocitrus
- Genus Naringi Adans. – Hesperethusa (= Hesperethusa)
- Genus Poncirus – Trifoliate Orange (probably belongs in Citrus)
- Genus Pleiospermium
- Genus Severinia Ten. (formerly in Clauseneae)

Tribe Clauseneae

Subtribe Micromelinae
- Genus Micromelum Blume
Subtribe Clauseninae
- Genus Clausena Burm.f.
- Genus Glycosmis
- Genus Murraya
Subtribe Merrilliinae (might belong in Clauseninae)
- Genus Merrillia

[edit] Footnotes

^ ^a ^b Grant et al. (2000)
^ Grant et al. (2000), de Araújo et al. (2003)

[edit] References

de Araújo, E. Freitas; de Queiroz, L. Paganucci & Machado, M.A. (2003): What is Citrus? Taxonomic implications from a study of cp-DNA evolution in the tribe Citreae (Rutaceae subfamily Aurantioideae). Organisms Diversity & Evolution 3(1): 55-62. doi:10.1078/1439-6092-00058 (HTML abstract)
Grant, Matthew; Blackmore, Stephen & Morton, Cynthia (2000): Pollen morphology of the subfamily Aurantioideae (Rutaceae). Grana 39(1): 8-20. doi:10.1080/00173130150503768 PDF fulltext

[grantetal2000-0] Grant et al. (2000)

[1] Grant et al. (2000), de Araújo et al. (2003)

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