Proteoideae
Proteoideae | |
---|---|
Protea cynaroides | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Proteales |
Family: | Proteaceae |
Subfamily: | Proteoideae Eaton |
Genera | |
See text |
Proteoideae is one of the five
Taxonomy
Proteoideae was essentially defined by Robert Brown in his 1810 On the natural order of plants called Proteaceae. Brown divided Proteaceae into two "sections" based on whether or not the fruits were dehiscent or indehiscence. He also noted that
"in dividing the order into two sections from the structure of the ovarium, it will be found that while all the single-seeded genera have each flower subtended by a proper bractea, or more rarely are without one, those with two or more seeds have, with very few exceptions, the flowers of their spikes of clusters disposed in pairs, each pair being furnished with only one bractea common to both flowers...."[1]
Brown's two "sections" corresponded closely with what are now recognised as the two largest Proteaceae subfamilies, Proteoideae and Grevilleoideae, and both the indehiscence of Proteoideae and the paired flowers of Grevilleoideae are still recognised as key diagnostic characters.[2][3]
Brown did not publish names for his two sections, and it would not be until 1836 that the name Proteoideae would be published by
- Family Proteaceae
- Subfamily Bellendenoideae (1 genus, Bellendena)
- Subfamily Persoonioideae (2 tribes, 5 genera)
- Subfamily Symphionematoideae(2 genera)
- Subfamily Proteoideae
- incertae sedis
- Eidothea — Beauprea — Beaupreopsis — Dilobeia — Cenarrhenes — Franklandia
- Tribe Conospermeae
- Subtribe Stirlingiinae
- Subtribe Conosperminae
- Subtribe
- Tribe Petrophileae
- Tribe Proteeae
- Tribe Leucadendreae
- Subtribe Isopogoninae
- Subtribe Adenanthinae
- Subtribe Leucadendrinae
- Leucadendron — Serruria — Paranomus — Vexatorella — Sorocephalus — Spatalla — Leucospermum — Mimetes — Diastella — Orothamnus
- Subtribe
- incertae sedis
- Subfamily Grevilleoideae (4 tribes, 10 subtribes, 31 genera)
- Subfamily
Distribution and habitat
Like the family as a whole, Proteoideae has a southern hemisphere distribution, spanning Africa, Australia and South America. Africa is the main centre of biodiversity. Australia has similar number of genera but fewer species. The subfamily is poorly represented in South America.[3]
References
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- ^ doi:10.7751/telopea20065733. Archived from the original(PDF) on 2009-10-02.