Oncidiinae
| Oncidiinae | |
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| Odontoglossum 'Big Mac' x Brassia longissima | |
| Scientific classification | |
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| (unranked): | |
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| Subtribe: | Oncidiinae
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| Genera | |
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See text | |
The Oncidiinae is a subtribe within the Orchidaceae that consists of a number of genera that are closely related.
This subtribe consists of about 70 genera with over 1000 species, with Oncidium as its largest genus. These genera consist of a single floral type based on the angle of the attachment of the lip to the column, reflecting pollinator preferences. This has however led to several unreliable results and polyphyletic taxa within Oncidium. These were transferred to Gomesa and a new genus Nohawilliamsia, has been described for Oncidium orthostates[1]
Most Oncidioid species have well-developed pseudobulbs and conduplicate leaves.
It is possible to form hybrids in some instances between multiple genera within the Oncidiinae. These hybrids are often colloquially referred to as "intergenerics."
Genera
Examples of primary genera include:
- Ada
- Brassia
- Gomesa
- Macradenia
- Macrochilus
- Macroclinium
- Mexicoa
- Miltonia
- Miltoniopsis
- Odontoglossum
- Oncidium
- Osmoglossum
- Otoglossum
- Plectrophora
- Polyotidium
- Psychopsiella (sometimes included in Psychopsis)
- Psychopsis
- Psygmorchis
- Pterostemma
References
- ^ Chase, Mark W. (2009). "Floral convergence in Oncidiinae (Cymbidieae; Orchidaceae): an expanded concept of Gomesa and a new genus Nohawilliamsia". Annals of Botany. 104 (3): 387–402. doi:10.1093/aob/mcp067. PMC 2720657. PMID 19346522. Retrieved 2009-01-15.
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- Mark W. Chase - A Reappraisal of the Oncidioid Orchids ; Systematic Botany, Vol. 11, No. 3 (Jul. - Sep., 1986), pp. 477–491
External links
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