Matalbatzia Archila, the word "Type" or equivalent not used.
Mexicoa Garay
Miltoniastrum (Rchb.f.) Lindl.
Miltonioides Brieger & Lückel
Odontoglossum Kunth
Petalocentrum Schltr.
Roezliella Schltr.
Sigmatostalix Rchb.f.
Solenidiopsis Senghas
Symphyglossum Schltr., nom. cons.
Xeilyathum Raf.
Oncidium, abbreviated as Onc. in the horticultural trade,[2] is a genus that, as of December 2023[update], contains about 340 species of orchids from the subtribe Oncidiinae of the orchid family Orchidaceae. It is distributed across tropical and subtropical America from Mexico, Central America and the West Indies to northern Argentina, with one species (O. ensatum) extending into Florida.[3][4] Common names for plants in this genus include dancing-lady orchid[5] and golden shower orchid.
A 2008 molecular phylogenetic study labeled the Oncidium alliance "grossly polyphyletic."[6] In the same year, the American Orchid Society labeled the genus a "dumping ground".[7] A consensus announced in April 2013 resulted in major taxonomic changes to Oncidium, Gomesa, Odontoglossum, Miltonia, and others.[8] Much of this debate and subsequent housekeeping was initiated by significant research for the scientific publication Genera Orchidacearum Volume 5.[9] As a result, much of the information in this article is now deprecated, but still of great value. One significant change is the move of most Brazilian Oncidium with a fused lateral sepal to the genus Gomesa.[7][6] The Royal Horticultural Society system, the World Checklist of Monocots database[10] and the American Orchid Society have updated their databases to reflect most of these changes.
^"Oncidium Sw." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2023-12-22.
^"My Huge List of Orchid Abbreviations". 13 June 2014.
^Cite error: The named reference WCSP was invoked but never defined (see the help page).
^Flora of North America, v 26 p 648, Oncidium ensatum
^USDA, NRCS (n.d.). "Oncidium". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 22 July 2015.
^ abChase, Mark W.; Williams, Norris H.; Faria, De; Donisete, Aparacida; Neubig, Kurt M.; Amaral, Maria do Carmo E.; Whitten, W. Mark (1 August 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 – via aob.oxfordjournals.org.
^ abLindleyana : The scientific journal of the American Orchid Society. December 2008 Pg 20
^"Kew News - Orchid community agree name changes in Oncidium". Archived from the original on 2013-06-24.
^Alec M. Pridgeon; Phillip Cribb; Mark W. Chase; Finn N. Rasmussen (eds.). "Genera Orchidacearum Volume 5 Epidendroideae (Part II)".
^"World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew". apps.kew.org.
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