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Oncidium

 
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Oncidium
 
 
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Oncidium, abbreviated as Onc in horticultural trade, is a genus
Genus

A genus is a low-level taxonomic rank used in the classification of living and fossil organisms. The taxonomic ranks are domain , kingdom , phylum, class , order , family , genus, and species....
 that contains about 330 species
Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring....
 of orchids from the subfamily Epidendroideae
Epidendroideae

The Epidendroideae, or epidendroid orchids, are a subfamily of the orchid family .The former subfamily Vandoideae has become a specialised cladistics within a more broadly defined Epidendroideae....
 of the orchid family (Orchidaceae
Orchidaceae

Orchidaceae is the largest Family of the flowering plants . Its name is derived from the genus Orchis.The Royal Botanic Gardens, Kew list 880 genus and nearly 22,000 accepted species, but the exact number is unknown because of taxonomic disputes....
). This is a complex, difficult genus, with many species being reclassified. Calls are made for splitting this genus into multiple genera.

Description
This genus was first described by Olof Swartz
Olof Swartz

Olof Peter Swartz was a Swedish botanist and taxonomist. He is best known for his taxonomic work and studies into pteridophytes. He attended the University of Uppsala where he studied under Carolus Linnaeus the Younger and received his doctorate in 1781....
 in 1800 with the orchid Oncidium altissimum, which has become the type species.






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Oncidium, abbreviated as Onc in horticultural trade, is a genus
Genus

A genus is a low-level taxonomic rank used in the classification of living and fossil organisms. The taxonomic ranks are domain , kingdom , phylum, class , order , family , genus, and species....
 that contains about 330 species
Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring....
 of orchids from the subfamily Epidendroideae
Epidendroideae

The Epidendroideae, or epidendroid orchids, are a subfamily of the orchid family .The former subfamily Vandoideae has become a specialised cladistics within a more broadly defined Epidendroideae....
 of the orchid family (Orchidaceae
Orchidaceae

Orchidaceae is the largest Family of the flowering plants . Its name is derived from the genus Orchis.The Royal Botanic Gardens, Kew list 880 genus and nearly 22,000 accepted species, but the exact number is unknown because of taxonomic disputes....
). This is a complex, difficult genus, with many species being reclassified. Calls are made for splitting this genus into multiple genera.

Description


This genus was first described by Olof Swartz
Olof Swartz

Olof Peter Swartz was a Swedish botanist and taxonomist. He is best known for his taxonomic work and studies into pteridophytes. He attended the University of Uppsala where he studied under Carolus Linnaeus the Younger and received his doctorate in 1781....
 in 1800 with the orchid Oncidium altissimum, which has become the type species. Its name is derived from the Greek word "onkos", meaning "swelling". This refers to the callus at the lower lip.

Most species in the Oncidium genus
Genus

A genus is a low-level taxonomic rank used in the classification of living and fossil organisms. The taxonomic ranks are domain , kingdom , phylum, class , order , family , genus, and species....
 are epiphytes, although some are lithophyte
Lithophyte

Lithophytes are a type of plant that grows in or on Rock . Lithophytes feed off moss, nutrients in rain water, litter, and even their own dead tissue....
s or terrestrial
Terrestrial plant

A terrestrial plant is one that grows on land. Other types of plants are aquatic ecosystem , epiphytic and lithophytes ....
s. They are widespread from northern Mexico
Mexico

The United Mexican States , commonly known as Mexico , is a federalism constitutionalism republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of Mexico....
, the Caribbean
Caribbean

The Caribbean is a region consisting of the Caribbean Sea, its islands , and the surrounding coasts. The region is located southeast of the Gulf of Mexico and Northern America, east of Central America, and to the north of South America....
, some parts of South Florida
Florida

Florida is a U.S. state located in the Southeastern United States of the United States, bordering Alabama to the northwest and Georgia to the northeast....
 to South-America. They usually occur in seasonally dry areas.

They can be divided in three categories, according to their growth pattern :
  • Some have green pseudobulb
    Pseudobulb

    The pseudobulb is a storage organ derived from the part of a stem between two leaf nodes.It applies to the orchid family , specifically certain groups of epiphyte orchids, and may be single or composed of several internodes with evergreen or deciduous leaves along its length....
    s and long raceme
    Raceme

    A raceme is a type of inflorescence that is unbranched and indeterminate growth and bears pedicellate flowers — flowers having short floral stalks called Pedicel s — along the axis....
    s with small flowers and a dominant lip
    Labellum

    The labellum is part of an Orchid, Canna or other less known flower that serves to attract insects that pollinate the flower, and acts as a landing platform for those insects....
    . They are mostly golden yellow with or without reddish-brown barring, but some are brown or yellowish-brown. Other Oncidium species have white and pink blooms, while some even have startling, deep red colors in their flowers.
  • Another group has extremely small pseudobulbs and stiff, erect, solitary leaves
    Leaf

    In botany, a leaf is an above-ground plant Organ specialized for photosynthesis. For this purpose, a leaf is typically flat and thin, to expose the cells containing chloroplast to light over a broad area, and to allow light to penetrate fully into the tissues....
    . These cylindrical leaves act as a water reserve. They have long racemes with yellow flowers that seem to fan out at the top. Sizes of these orchids can vary from miniature plants of a couple of centimetres to giants with 30 cm-long leaves and racemes of more than one metre long. These species, known as the Mule-Ears, are now classed as Psychopsis
    Psychopsis

    Psychopsis, abbreviated Psychp in horticultural trade, is a genus of orchids. It used to be contained in the massively paraphyletic "wastebin taxon" Oncidium....
    .
  • Formerly there was a third group, called the Variegata or equitant oncidiums. They have no pseudobulbs, giving fan-shaped shoots of less than 15 cm, with triangular section leaves. These oval, broad and spongy leaves act as storage organs. Their flowers are most complicated with exquisite colors. The sepals are somewhat fleshy. The petals and the lip are membranaceous. These orchids are now classified as Tolumnia
    Tolumnia

    Tolumnia Rafinesque, is a genus in the family Orchidaceae. It was segregated from the mega-genus Oncidium by Guido Braem in 1986. The plants are small, usually epiphytic, with small or absent pseudobulbs completely covered by leaves, which are triangular or circular in cross section and overlap each other at base to resemble a fan The i...
    . Cyrtochilum is another genus
    Genus

    A genus is a low-level taxonomic rank used in the classification of living and fossil organisms. The taxonomic ranks are domain , kingdom , phylum, class , order , family , genus, and species....
     that many Oncidium species have recently been reclassified into; Cyrtochilum species have extremely long, winding inflorescences that can sometimes reach 20' or more, curled petals that result in three-pointed blooms, and rambling growth habits in which each new pseudobulb appears on top of the old one.


Oncidium species are characterised by the following properties :
  • presence of column
    Column (botany)

    The column, or technically the gynostemium, is a reproductive structure that can be found in several plant families: Aristolochiaceae, Orchidaceae, and Stylidiaceae....
      wings
  • presence of a complicated callus on the lip
    Labellum

    The labellum is part of an Orchid, Canna or other less known flower that serves to attract insects that pollinate the flower, and acts as a landing platform for those insects....
     (this can be used to separate the taxa).
  • pseudobulb
    Pseudobulb

    The pseudobulb is a storage organ derived from the part of a stem between two leaf nodes.It applies to the orchid family , specifically certain groups of epiphyte orchids, and may be single or composed of several internodes with evergreen or deciduous leaves along its length....
    s with one to three leaves.
  • several basal bract
    Bract

    In botany, a bract is a modified or specialized leaf. Bracts are ordinarily associated with reproductive structures . They are ordinarily reduced in size relative to foliage leaves, or of a different color or texture from foliage leaves, or both....
    s at the base of the pseudobulbs.


The flower
Flower

A flower, sometimes known as a bloom or blossom, is the reproduction structure found in flowering plants . The biological function of a flower is to mediate the union of male sperm with female ovum in order to produce seeds....
s of the Oncidium genus come in shades of yellow, red, white and pink. The petals are often ruffled on the edges, as is the lip
Labellum

The labellum is part of an Orchid, Canna or other less known flower that serves to attract insects that pollinate the flower, and acts as a landing platform for those insects....
. The lip is enormous, partially blocking the small petals and sepals.

Some Oncidium orchids are very long : Oncidum altissimum and Oncidium baueri can grow to a height of 5 m, while Oncidum sarcodes can reach 3 m.

They are known as 'spray orchids' among some florists. They are very varied and are easily hybridised with Odontoglossum. Together with other closely related genera (Cochlioda, Miltonia, Cuitlauzina, Miltoniopsis, Osmoglossum, Leochilus, Comparettia, Cyrtochilum, Odontoglossum, Tolumnia, Rhynchostele [formerly Lemboglossum], Psychopsis, etc.) they form the Oncidium alliance. Some of the best Oncidium alliance hybrids originate from Oncidium tigrinum and Oncidium incurvum, when crossed with Odontoglossums, although hybridization possibilities of this group of orchids are literally endless, and there are literally hundreds of thousands of excellent hybrids in the Oncidium alliance.

Oncidium Brunleesianum
Oncidiumincurvum2

Species


  • Oncidium aberrans (Brazil - Paraná).
  • Oncidium abortivum (N. Venezuela to Ecuador).
  • Oncidium abruptum (Colombia to Ecuador).
  • Oncidium acinaceum (Ecuador to Peru).
  • Oncidium acrochordonia (Colombia).
  • Oncidium adelaidae (Colombia).
  • Oncidium advena (N. Venezuela).
  • Oncidium albini (Brazil - Paraná).
  • Oncidium alcicorne (Colombia).
  • Oncidium allenii (Panama).
  • Oncidium aloisii (Ecuador).
  • Oncidium altissimum : "Wydler
    Wydler

    Surname of Swiss origin . Currently people with the family name Wydler are also found in the United States and Argentina where they have emigrated in the early 20th century....
    's Dancing-lady Orchid    " (Jamaica).
  • Oncidium amabile (Brazil).
  • Oncidium amictum (SE. Brazil).
  • Oncidium amoenum (Mexico).
  • Oncidium ampliatumLindl. (Panama) (now a synonym of the accepted name Chelyorchis ampliata (Lindl.) Dressler & N.H.Williams in G.A.Romero & G.Carnevali, 2000 )
  • Oncidium andradeanum (Ecuador to Peru).
  • Oncidium andreae (Colombia).
  • Oncidium andreanum (SW. Mexico).
  • Oncidium angustisegmentum (Peru).
  • Oncidium × ann-hadderae (O. haitiense × O. variegatum) (Dominican Republic).
  • Oncidium anomalum (Colombia).
  • Oncidium ansiferum (C. America to Colombia).
  • Oncidium anthocrene (Colombia to Ecuador).
  • Oncidium antioquiense (Colombia).
  • Oncidium ariasii (Peru).
  • Oncidium arizajulianum (Dominican Republic) (now synonym of Tolumnia arizajuliana)
  • Oncidium armillare (W. South America to N. Venezuela).
  • Oncidium aspecum (Peru).
  • Oncidium auricula (SE. Brazil).
  • Oncidium auriferum (Colombia to NW. Venezuela).
  • Oncidium aurorae (Peru).
  • Oncidium ayabacanum (Peru).
  • Oncidium baccatum (Venezuela).
  • Oncidium bahiense (Cogn.) Schltr (NE Brasil)
  • Oncidium barbaceniae (Brazil - Minas Gerais).
Oncidium Altissimum1
*Oncidium barbatum (Brazil to Bolivia).
  • Oncidium batemannianum (Brazil to Peru).
  • Oncidium baueri (Trop. America).
  • Oncidium bennettii (Peru).
  • Oncidium bicolor (NE. Venezuela to Brazil).
  • Oncidium bidentatum (Ecuador).
  • Oncidium bifolium (Brazil to N. Argentina).
  • Oncidium blanchetii (E. & S. Brazil.).
  • Oncidium boothianum (Venezuela to Ecuador).
  • Oncidium brachyandrum (Mexico)
  • Oncidium brachystachys (Colombia).
  • Oncidium brachystegium (Bolivia).
  • Oncidium bracteatum (Costa Rica to Colombia).
  • Oncidium braunii (Trop. America).
  • Oncidium brevilabrum (Colombia.
  • Oncidium brunleesianum (Brazil - Rio de Janeiro).
  • Oncidium brunnipetalum (S. Brazil).
  • Oncidium bryocladium (Colombia).
  • Oncidium bryolophotum (Costa Rica to Panama).
  • Oncidium buchtienii (Bolivia).
  • Oncidium bustosii Königer (Ecuador)
  • Oncidium calanthum (Ecuador to Peru).
  • Oncidium callistum (Colombia).
  • Oncidium calochilum (Cayman Is., Cuba, Dominican Republic) (now synonym of Tolumnia calochila)
  • Oncidium caminiophorum (N. Venezuela).
  • Oncidium cardiostigma (Mexico).
  • Oncidium × cassolanum (O. cornigerum]] × O. riograndense) (S. Brazil).
  • Oncidium caucanum (Colombia).
  • Oncidium chapadense (Brazil - Goiás).
  • Oncidium cheirophorum (Mexico - Chiapas to Colombia).
  • Oncidium chrysomorphum (Colombia to N. Venezuela).
  • Oncidium chrysops (Mexico - Guerrero, Oaxaca).
  • Oncidium chrysopteranthum (Brazil).
  • Oncidium chrysopterum (WC. Brazil to Bolivia).
  • Oncidium chrysothyrsus (SE. Brazil)
  • Oncidium ciliatum (SE. Brazil).
  • Oncidium citrinum (Trinidad to Venezuela).
  • Oncidium cogniauxianum (SE. Brazil).
  • Oncidium × colnagoi.( O. forbesii × O. ) (SE. Brazil).
  • Oncidium coloratum (Brazil - Espírito Santo) (now synonym of Carria colorata]] (Königer & J.G.Weinm.bis) V.P.Castro & K.G.Lacerda 2005)
  • Oncidium compressicaule (Haiti) (now synonym of Tolumnia compressicaulis)
  • Oncidium concolor (Brazil to NE. Argentina).
  • Oncidium cornigerum (SE. & S. Brazil to Paraguay).
  • Oncidium crassopterum (Peru).
  • Oncidium crispum (SE. Brazil).
  • Oncidium cristatellum (Brazil to Ecuador).
  • Oncidium croesus (Brazil - Rio de Janeiro).
  • Oncidium cruciferum (Peru).
  • Oncidium cultratum (Ecuador) .
  • Oncidium curtum (Brazil - Rio de Janeiro).
  • Oncidium cycnicolle (Colombia to Ecuador).
  • Oncidium dactyliferum (Venezuela to Ecuador).
  • Oncidium dactylopterum (Colombia).
  • Oncidium dasystyle (Brazil - Rio de Janeiro).
  • Oncidium decorum (Colombia).
  • Oncidium deltoideum (N. Peru).
  • Oncidium dichromaticum (Costa Rica to Colombia).
  • Oncidium disciferum (Bolivia).
  • Oncidium discobulbon (Peru).
  • Oncidium divaricatum (SE. Brazil).
  • Oncidium donianum (Brazil - São Paulo).
  • Oncidium drepanopterum (Ecuador).
  • Oncidium durangense (Mexico - Durango).
  • Oncidium duveenii (Brazil).
  • Oncidium echinophorum (Brazil - Rio de Janeiro).
  • Oncidium echinops (Ecuador).
  • Oncidium edmundoi (Brazil).
  • Oncidium edwallii (Brazil to NE. Argentina).
  • Oncidium elephantotis (NW. Venezuela to Ecuador).
  • Oncidium emilii (Paraguay).
  • Oncidium enderianum (SE. Brazil).
  • Oncidium endocharis (Mexico - Chiapas to C. America).
  • Oncidium ensatum : Latin American Orchid']] (S. Mexico to NW. Venezuela).
  • Oncidium erucatum (Ecuador).
  • Oncidium estradae (Ecuador).
  • Oncidium eurycline (SE. Brazil).
  • Oncidium exalatum (Panama).
  • Oncidium exasperatoides (Peru).
  • Oncidium excavatum (C. America to Peru).
  • Oncidium fasciculatum (Mexico - Oaxaca, Chiapas to Guatemala).
  • Oncidium fasciferum (Peru).
  • Oncidium fimbriatum (Brazil to NE. Argentina).
  • Oncidium flexuosum (E. & S. Brazil to NC. Argentina).
  • Oncidium floridanum : Florida Orchid']] (S. Florida to Cuba).
  • Oncidium × floride-phillipsae (O. prionochilum]] × O. variegatum) (Leeward Is.).
  • Oncidium forbesii (Brazil - Minas Gerais).
  • Oncidium formosissimum (Ecuador to Peru).
  • Oncidium fragae (Brazil - Rio de Janeiro).
  • Oncidium fuscans (Brazil - Minas Gerais).
  • Oncidium fuscatum (Ecuador to Peru).
  • Oncidium fuscopetalum (WC. Brazil).
Oncidium Longipes
*Oncidium gardneri (Ecuador, SE. Brazil).
  • Oncidium × gardstyle (O. dasystyle]] × O. gardneri) (Brazil - Rio de Janeiro).
  • Oncidium gauntlettii (Jamaica) (now synonym of Tolumnia gauntlettii)
  • Oncidium geertianum (C. & SW. Mexico).
  • Oncidium gilvum (SE. Brazil).
  • Oncidium gracile (SE. Brazil).
  • Oncidium graciliforme (C.Panama).
  • Oncidium gracillimum (Colombia).
  • Oncidium graminifolium (Mexico to C. America).
  • Oncidium gravesianum (E. Brazil).
  • Oncidium guianense (Hispaniola) (now synonym of Tolumnia guianensis)
  • Oncidium guibertianum (Cuba) (now synonym of Tolumnia guibertiana)
  • Oncidium guttatum (Mexico to Colombia and Caribbean) (now synonym of Tolumnia guttata)
  • Oncidium gyrobulbon (Ecuador).
  • Oncidium hagsaterianum (Mexico to Guatemala).
  • Oncidium haitiense (Hispaniola) (now synonym of Tolumnia haitensis)
  • Oncidium hannelorae (Windward Is.-(Dominica).
  • Oncidium hapalotyle (Colombia to Ecuador).
  • Oncidium harrisonianum (SE. Brazil).
  • Oncidium hastatum (Mexico).
  • Oncidium hastilabium (W. South America).
  • Oncidium hatschbachii (Brazil - Paraná).
Oncidium Macronix
*Oncidium helgae (Ecuador).
  • Oncidium herzogii (Bolivia to NW. Argentina).
  • Oncidium heteranthum (S. Trop. America).
  • Oncidium hians (Peru, SE. Brazil).
  • Oncidium hieroglyphicum (Peru).
  • Oncidium hintonii (N. & SW. Mexico).
  • Oncidium hirtzii (Ecuador – Napo).
  • Oncidium hookeri (SE. & S. Brazil.
  • Oncidium hydrophilum (Brazil to Paraguay).
  • Oncidium hyphaematicum (W. South America).
  • Oncidium imitans (Costa Rica).
  • Oncidium imperatoris-maximiliani (Brazil - Rio de Janeiro).
  • Oncidium incurvum (Mexico - Veracruz to Chiapas).
Oncidium Pulvinatum
*Oncidium inouei (Peru).
  • Oncidium insigne (Brazil).
  • Oncidium ionopterum (Peru - Cajamarca).
  • Oncidium iricolor (Trop. America).
  • Oncidium isidrense (Peru).
  • Oncidium isopterum (Brazil - Minas Gerais).
  • Oncidium isthmii (Costa Rica to Panama).
  • Oncidium kautskyi (Brazil).
  • Oncidium klotzschianum (Costa Rica to Venezuela and Peru).
  • Oncidium kraenzlinianum (Brazil).
  • Oncidium kramerianum (Costa Rica to Suriname and Ecuador) (now synonym of Psychopsis krameriana)
  • Oncidium lancifolium (Ecuador).
  • Oncidium leinigii (Brazil).
  • Oncidium leleui (SW. Mexico).
  • Oncidium lentiginosum (Colombia to N. Venezuela).
  • Oncidium leopardinum (Peru).
  • Oncidium lepidum (Ecuador).
Oncidium Sphegiferum
*Oncidium lepturum (Bolivia).
  • Oncidium leucochilum (SE. Mexico to Guatemala).
  • Oncidium lietzei (SE. Brazil).
  • Oncidium ligiae (Colombia).
  • Oncidium lindleyi (S. Mexico to Guatemala).
  • Oncidium lineoligerum (N. Peru).
  • Oncidium litum (SE. Brazil).
  • Oncidium loechiloides (Venezuela).
  • Oncidium loefgrenii (SE. & S. Brazil).
  • Oncidium longicornu (Brazil to NE. Argentina.
  • Oncidium longipes (Brazil to NE. Argentina).
  • Oncidium lucasianum (Peru - Cajamarca).
  • Oncidium lucayanum (Bahamas) (now synonym of Tolumnia lucayana)
  • Oncidium luteum (Costa Rica).
  • Oncidium lykaiosii (Bolivia).
  • Oncidium macronyx (Brazil).
  • Oncidium macropetalum (WC. Brazil)
  • Oncidium maculatum (Mexico to C. America).
  • Oncidium maculosum (Brazil - Minas Gerais.
  • Oncidium magdalenae (NW. Venezuela - Mérida).
  • Oncidium maizifolium (Colombia to NW. Venezuela).
  • Oncidium majevskyi (Brazil).
  • Oncidium mantense Dodson & R.Estrada (Ecuador)
  • Oncidium mandonii (Bolivia).
  • Oncidium marshallianum (SE. Brazil).
  • Oncidium martianum (SE. & S. Brazil).
  • Oncidium mathieuanum (Ecuador to Peru).
  • Oncidium megalopterum (SE. Brazil).
  • Oncidium melanops (Ecuador).
  • Oncidium micropogon (Brazil).
  • Oncidium micropogon var. micropogon (S. Brazil). Pseudobulb epiphyte
  • Oncidium microstigma (C. & SW. Mexico).
  • Oncidium millianum (Colombia).
  • Oncidium miserrimum (Colombia to NW. Venezuela).
  • Oncidium morenoi (Brazil) (replaced synonym of the accepted name Trichocentrum morenoi (Dodson & Luer) M.W.Chase & N.H.Williams, 2001 )
  • Oncidium nebulosum (Colombia).
  • Oncidium niesseniae (Colombia).
  • Oncidium nigratum (Colombia to Guyana).
  • Oncidium obryzatoides (Costa Rica to Ecuador).
  • Oncidium ochmatochilum
    Oncidium ochmatochilum

    Oncidium ochmatochilum is an orchid. In addition, the Cyrtochiloides genus, was created in 2001 by Norris H. Williams and Mark W. Chase, is designed to provide a small group of Neotropical epiphytes, previously included under a broad concept of Oncidium Sw., with a new, more accurate identity based on DNA....
    ]]     (SE. Mexico to Peru).
    Oncidium Ochmatochilum
    *Oncidium ochthodes (Ecuador).
  • Oncidium oliganthum (Mexico - Oaxaca, Chiapas to El Salvador).
  • Oncidium orbatum (Colombia).
  • Oncidium ornithocephalum (Colombia).
  • Oncidium ornithopodum (Trop. America).
  • Oncidium ornithorynchum (Mexico to C. America).
  • Oncidium orthostates (S. Venezuela to Guyana and Brazil).
  • Oncidium orthostatoides (Peru).
  • Oncidium ototmeton (Bolivia).
  • Oncidium ouricanense (Brazil - Bahia).
  • Oncidium panamense (Panama).
  • Oncidium panduratum (Colombia.
  • Oncidium panduriforme (Costa Rica).
  • Oncidium papilio (Panama to S. Trop. America and Trinidad) (now synonym of Psychopsis papilio)
  • Oncidium paranaense (Brazil to Argentina - Misiones).
  • Oncidium paranapiacabense (Brazil - São Paulo).
  • Oncidium pardalis (N. Venezuela).
  • Oncidium pardoglossum (Trop. America).
  • Oncidium pardothyrsus (Ecuador to Peru).
  • Oncidium parviflorum (Costa Rica to Panama).
  • Oncidium pectorale (Brazil - Rio de Janeiro).
  • Oncidium pelicanum (Mexico - Guerrero, Oaxaca).
  • Oncidium peltiforme (Ecuador).
  • Oncidium pentadactylon (W. South America).
  • Oncidium pergameneum (NC. & SE. Mexico to C. America).
  • Oncidium pictum (W. South America).
  • Oncidium picturatum (N. Venezuela).
  • Oncidium pirarene (Guyana).
  • Oncidium planilabre (W. South America).
  • Oncidium platychilum (Colombia to Ecuador).
  • Oncidium platyglossum (Colombia).
  • Oncidium pollardii (Mexico - Oaxaca).
  • Oncidium polyadenium (Ecuador to N. Peru).
  • Oncidium polyodontum (SE. Brazil).
  • Oncidium portillae (Ecuador).
  • Oncidium posadarum (Colombia).
  • Oncidium powellii (Panama).
  • Oncidium praetextum (SE. Brazil).
  • Oncidium prionochilum (Puerto Rico to Virgin Is.) (now synonym of Tolumnia prionochila)
  • Oncidium pubes (Colombia, SE. Brazil to NE. Argentina).
  • Oncidium pulchellum (Jamaica) (now synonym of Tolumnia pulchella)
  • Oncidium pulvinatum (Brazil to NE. Argentina).
  • Oncidium punctulatum (Panama).
  • Oncidium pyramidale (W. South America).
  • Oncidium pyxidophorum (Trop. America).
  • Oncidium quadrilobum (Hispaniola) (now synonym of Tolumnia quadriloba)
  • Oncidium raniferum (SE. Brazil).
  • Oncidium reductum (Bolivia).
  • Oncidium reflexum (SW. Mexico)
  • Oncidium regentii V.P.Castro & G.F.Carr (2005) (Brazil)
  • Oncidium reichenbachii (Colombia to NW. Venezuela).
  • Oncidium remotiflorum (Brazil).
  • Oncidium retusum (Peru).
  • Oncidium rhinoceros (Trop. America).
  • Oncidium riograndense (S. Brazil to NE. Argentina.
  • Oncidium riopalenqueanum (Ecuador).
  • Oncidium riviereanum (Brazil).
  • Oncidium robustissimum (Brazil).
  • Oncidium rodrigoi (Colombia).
  • Oncidium rostrans (Colombia).
  • Oncidium rutkisii (Venezuela).
  • Oncidium sanderae (Peru - Huánuco) (now synonym of Psychopsis sanderae)
  • Oncidium sarcodes
    Oncidium sarcodes

    Oncidium sarcodes is a Brazilian orchid.ReferencesExternal links...
    ]]     (SE. Brazil).
  • Oncidium saxicola (Colombia).
  • Oncidium schillerianum (Peru).
  • Oncidium schmidtianum (Trop. America).
  • Oncidium schunkeanum (Brazil).
  • Oncidium schwambachiae (Brazil).
  • Oncidium sclerophyllum (Costa Rica).
  • Oncidium × scullyi (O. curtum]] × O. gravesianum) (SE. Brazil).
  • Oncidium sellowii (Brazil).
  • Oncidium semele (Ecuador).
  • Oncidium sessile (Venezuela to Peru).
  • Oncidium silvanoi (Peru).
  • Oncidium silvanum (Brazil).
  • Oncidium spegazzinianum (Argentina - Misiones).
  • Oncidium sphacelatum (Mexico to C. America, SE. Venezuela).
  • Oncidium sphegiferum (Brazil - Rio de Janeiro).
  • Oncidium stelligerum (SW. Mexico).
  • Oncidium stenobulbon (Costa Rica).
  • Oncidium stenotis (Costa Rica to Ecuador).
  • Oncidium storkii (Costa Rica).
  • Oncidium suave (C. & SW. Mexico, El Salvador).
  • Oncidium subcruciforme (Nicaragua).
  • Oncidium suttonii (Mexico - Chiapas to El Salvador).
  • Oncidium swartzii (Windward Is.- Martinique).
  • Oncidium sylvestre (Cuba to Haiti) (now synonym of Tolumnia
    Tolumnia

    Tolumnia Rafinesque, is a genus in the family Orchidaceae. It was segregated from the mega-genus Oncidium by Guido Braem in 1986. The plants are small, usually epiphytic, with small or absent pseudobulbs completely covered by leaves, which are triangular or circular in cross section and overlap each other at base to resemble a fan The i...
     sylvestris    )
  • Oncidium tectum (Colombia).
  • Oncidium tenellum (French Guiana).
  • Oncidium tenuipes (Guatemala).
  • Oncidium tetrotis (Colombia).
  • Oncidium tigratum (Ecuador to Peru).
  • Oncidium tigrinum (C. & SW. Mexico).
  • Oncidium tipuloides (Peru).
  • Oncidium toachicum (Ecuador).
  • Oncidium trachycaulon (Colombia to Ecuador).
  • Oncidium trichodes (N. Brazil).
  • Oncidium trilobum (Peru).
  • Oncidium trinasutum (Ecuador).
  • Oncidium triquetrum (Jamaica) (now synonym of Tolumnia triquetra)
  • Oncidium trulliferum (Brazil - Rio de Janeiro).
  • Oncidium truncatum (Brazil - Mato Grosso).
  • Oncidium tsubotae (Colombia).
  • Oncidium tuerckheimii (Cuba to Hispaniola) (now synonym of Tolumnia
    Tolumnia

    Tolumnia Rafinesque, is a genus in the family Orchidaceae. It was segregated from the mega-genus Oncidium by Guido Braem in 1986. The plants are small, usually epiphytic, with small or absent pseudobulbs completely covered by leaves, which are triangular or circular in cross section and overlap each other at base to resemble a fan The i...
     tuerckheimii     )
  • Oncidium unguiculatum (C. & SW. Mexico).
  • Oncidium unicolor (SE. Brazil).
  • Oncidium uniflorum (SE. & S. Brazil).
  • Oncidium urophyllum (Lesser Antilles) (now synonym of Tolumnia
    Tolumnia

    Tolumnia Rafinesque, is a genus in the family Orchidaceae. It was segregated from the mega-genus Oncidium by Guido Braem in 1986. The plants are small, usually epiphytic, with small or absent pseudobulbs completely covered by leaves, which are triangular or circular in cross section and overlap each other at base to resemble a fan The i...
     urophylla    )
  • Oncidium usneoides (Cuba) (now synonym of Tolumnia
    Tolumnia

    Tolumnia Rafinesque, is a genus in the family Orchidaceae. It was segregated from the mega-genus Oncidium by Guido Braem in 1986. The plants are small, usually epiphytic, with small or absent pseudobulbs completely covered by leaves, which are triangular or circular in cross section and overlap each other at base to resemble a fan The i...
     usneoides    )
  • Oncidium varicosum (Brazil to N. Argentina).
  • Oncidium variegatum (S. Florida to Caribbean) (now synonym of Tolumnia
    Tolumnia

    Tolumnia Rafinesque, is a genus in the family Orchidaceae. It was segregated from the mega-genus Oncidium by Guido Braem in 1986. The plants are small, usually epiphytic, with small or absent pseudobulbs completely covered by leaves, which are triangular or circular in cross section and overlap each other at base to resemble a fan The i...
     variegata    )
    • Oncidium variegatum subsp. bahamense (S. Florida to Bahamas) (now synonym of Tolumnia bahamensis)
    • Oncidium variegatum subsp. leiboldii (Cayman Is. to Cuba) (now synonym of Tolumnia leiboldii )
    • Oncidium variegatum subsp. scandens (Haiti) (now synonym of Tolumnia scandens)
    • Oncidium variegatum subsp. velutinum (Cuba) (now synonym of Tolumnia velutina)
  • Oncidium vasquezii (Bolivia).
  • Oncidium venustum (Brazil).
  • Oncidium vernixium (Ecuador).
  • Oncidium verrucosissimum (Paraguay to NE. Argentina).
  • Oncidium versteegianum (Suriname to Ecuador) (now synonym of Psychopsis versteegiana)
  • Oncidium viperinum (Bolivia to NW. Argentina).
  • Oncidium virgulatum (Colombia to Ecuador).
  • Oncidium volvox (NW. & N. Venezuela).
  • Oncidium warmingii (S. Venezuela to Brazil).
  • Oncidium warszewiczii (Costa Rica to Colombia).
  • Oncidium weddellii (Bolivia).
  • Oncidium welteri (Brazil - São Paulo).
  • Oncidium wentworthianum (Mexico – Chiapas to El Salvador).
  • Oncidium wheatleyanum (Brazil).
  • Oncidium widgrenii (SE. & S. Brazil to Paraguay).
  • Oncidium williamsii (Bolivia).
  • Oncidium xanthocentron (Colombia).
  • Oncidium xanthornis (NW. Venezuela to Ecuador).
  • Oncidium zappii (Brazil).


External links