Oncidiinae

The Oncidiinae is a subtribe within the Orchidaceae that consists of a number of genera that are closely related.

Oncidiinae
Odontoglossum 'Big Mac' x Brassia longissima
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Tribe: Cymbidieae
Subtribe: Oncidiinae
Genera

See text

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:

Orchid "Odontonia Prism Picotee X Crystal Palace"
Orchid "Odontonia Prism Picotee X Crystal Palace" viewed from further out
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References
  1. Chase, Mark W.; Norris H.Williams; Aparacida Donisete de Faria; Kurt M. Neubig; Maria do Carmo E. Amaral; W. Mark Whitten (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.
  • Mark W. Chase - A Reappraisal of the Oncidioid Orchids ; Systematic Botany, Vol. 11, No. 3 (Jul. - Sep., 1986), pp. 477–491


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