This is a list of genera in the orchid family ( Orchidaceae), originally according t
The Families of Flowering Plants
- L. Watson and M. J. Dallwitz. This list is adapted regularly with the changes published in the ''Orchid Research Newsletter'' which is published twice a year by the

Royal Botanic Gardens, Kew Royal Botanic Gardens, Kew is a non-departmental public body in the United Kingdom sponsored by the Department for Environment, Food and Rural Affairs. An internationally important botanical research and education institution, it employs 1,10 ...

. The most up to date list of accepted; genera, natural nothogenera, species and natural nothospecies with their synonyms can be found on the World Checklist of Selected Plants Familie
Search Page
published by the

. This list is reflected on Wikispecies Orchidaceae and the new eMonocot websit
Orchidaceae Juss.
This

taxonomy Taxonomy is the practice and science of categorization or classification. A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. ...

undergoes constant change, mainly through evidence from DNA study. Orchids were traditionally defined by morphological similarity (structure of their flowers and other parts). However, recent changes to nomenclature have been driven primarily by DNA studies and also by re-examination of herbarium specimens. This has led to a reduction of genera and species as well as re-circumscription of subfamilies, tribes and subtribes. Orchid taxonomy is still being revised and each year about another 150 new species are being discovered. The list of genera alone currently stands just short of 1000 entries. From a

cladistic Cladistics (; ) is an approach to biological classification in which organisms are categorized in groups ("clades") based on hypotheses of most recent common ancestry. The evidence for hypothesized relationships is typically shared derived char ...

point of view, the orchid family is considered to be monophyletic, i.e. the group incorporates all the taxa derived from an ancestral group. The taxonomy of the orchids is explained on the page Taxonomy of the orchid family.

Subfamilies

There are five recognized subfamilies: *

Apostasioideae Apostasioideae is one of the five subfamilies recognised within the orchid family, Orchidaceae. Only two genera, '' Neuwiedia'' and ''Apostasia'', and 15 species, are recognised within the Apostasioideae in contrast to the other orchid subfamili ...

(two genera, ''Neuwiedia'' and ''Apostasia'') *

Cypripedioideae Cypripedioideae is a subfamily of orchids commonly known as lady's slipper orchids, lady slipper orchids or slipper orchids. Cypripedioideae includes the genera ''Cypripedium, Mexipedium, Paphiopedilum, Phragmipedium'' and ''Selenipedium''. The ...

(five genera: ''Cypripedium'', ''Mexipedium'', ''Paphiopedilum'', ''Phragmipedium'' and ''Selenipedium'' *

Epidendroideae Epidendroideae is a subfamily of plants in the orchid family, Orchidaceae. Epidendroideae is larger than all the other orchid subfamilies together, comprising more than 15,000 species in 576 genera. Most epidendroid orchids are tropical epiphytes ...

(has 15,000 species in 576 genera) *

Orchidoideae The Orchidoideae, or the orchidoid orchids, are a subfamily of the orchid family (Orchidaceae) that contains around 3630 species. Species typically have a single ( monandrous), fertile anther which is erect and basitonic. Description The subf ...

(7 tribes and 3,630 species; has 2 subclades with tribes

Orchideae Orchideae is a tribe of orchids in the subfamily Orchidoideae. Historically, it was divided into 2 subtribes, Orchidinae and Habenariinae. The subtribe Orchidinae alone contains about 1,800 species. However, although some phylogenetic studies ha ...

and Diseae then the other has tribes

Cranichideae Cranichideae is an orchid tribe in the subfamily Orchidoideae. See also * Taxonomy of the Orchidaceae The taxonomy of the Orchidaceae (orchid family) has evolved slowly during the last 250 years, starting with Carl Linnaeus who in 1753 recogni ...

, Chloraeeae and Diurideae) *

Vanilloideae Vanilloideae is one of the subfamilies of orchids belonging to the large family Orchidaceae. Lindley (1836) and Garay (1986)Garay,L. (1986), Olim Vanillaceae. Botanical Museum Leaflets. Harvard University 30 : 233-237. treated it as a separate f ...

(15 genera and about 180 species: Tribe

Pogonieae Pogonieae is an orchid tribe in the subfamily Vanilloideae. Genera Genera included in Pogonieae: * '' Cleistes'' * '' Cleistesiopsis'' * ''Duckeella ''Duckeella'' is a genus of orchids (family Orchidaceae), belonging to the subfamily Vanilloi ...

(77 species; ''Cleistes'', ''Cleistesiopsis'', ''Duckeella'', ''Isotria'', and ''Pogonia'') also Tribe

Vanilleae Vanilleae is an orchid tribe of 9 genera in the subfamily Vanilloideae. Classification Tribe Vanilleae :Genus '' Clematepistephium'' (1 species) (Endemic to New Caledonia) :*''Clematepistephium smilacifolium'' :Genus '' Cyrtosia'' (5 species ...

(with 172 species; ''Clematepistephium'', ''Cyrtosia'', ''Epistephium'', ''Eriaxis'', ''Erythrorchis'', ''Galeola'', ''Lecanorchis'', ''Pseudovanilla'' and ''Vanilla'')

Genera

A

*'' Aa'' *''

Abdominea ''Robiquetia'', commonly known as pouched orchids, or 寄树兰属 (ji shu lan shu), is a genus of flowering plants from the orchid family, Orchidaceae. Plants in this genus are epiphytes with long, sometimes branched, fibrous stems, leathery l ...

'' *'' Aberrantia'' (Luer) Luer (synonym of '' Acianthera'' Scheidw.) *'' Acacallis''

Lindl. John Lindley FRS (5 February 1799 – 1 November 1865) was an English botanist, gardener and orchidologist. Early years Born in Catton, near Norwich, England, John Lindley was one of four children of George and Mary Lindley. George Lindley ...

(synonym of ''

Aganisia ''Aganisia'' is a small South American genus in the orchid family (Orchidaceae), subfamily Epidendroideae. The genus was named after the Greek word ‘agnos’ (gratitude), perhaps referring to the sweet scent of its flowers. These dwarf, epiph ...

'') *''

Acampe ''Acampe'', abbreviated as Acp in horticultural trade, is a genus of monopodial, epiphytic vandaceous species of orchids, distributed from tropical Asia from India, eastwards to China and southwards to Malaysia, and the Philippines as well as f ...

'' *'' Acanthophippium'' *'' Aceras'' *''

Aceratorchis ''Galearis'' is a genus of the orchid family (Orchidaceae) native to North America and eastern Asia. It contains about ten recognized species. The family name comes from the Greek word ''orchis'' ('testicle'), in reference to the shape of the roo ...

'' *'' Acianthera'' Scheidw. *''

Acianthus ''Acianthus'', commonly known as mosquito orchids, is a genus of about twelve species of plants in the orchid family, Orchidaceae. Mosquito orchids are terrestrial herbs with a single, heart-shaped, usually ground-hugging leaf and one to many sm ...

'' *''

Acineta ''Acineta'', abbreviated as Acn in horticultural trade, is a small genus belonging to the orchid family ( Orchidaceae). The name is derived from the Greek word 'akinetos' (immobile), referring to the rigid labellum (lip). These epiphytic orch ...

*'' Ackermania'' *'' Acoridium'' *'' Acostaea'' Schltr. *'' Acriopsis'' *'' Acrochaene'' *'' Acrolophia'' *'' Acrorchis'' *''

Ada Ada may refer to: Places Africa * Ada Foah, a town in Ghana * Ada (Ghana parliament constituency) * Ada, Osun, a town in Nigeria Asia * Ada, Urmia, a village in West Azerbaijan Province, Iran * Ada, Karaman, a village in Karaman Province, ...

'' *'' Adamantinia'' Van den Berg & C.N.Gonç *'' Adenochilus'' *''

Adenoncos ''Adenoncos'' is a genus of the orchid family (Orchidaceae), consisting of 20 species native to Thailand, Vietnam, Malaysia, Indonesia and New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; id, Papua, or , historically ) is the world's s ...

'' *'' Adrorhizon'' *''

Aerangis ''Aerangis'', abbreviated as Aergs in horticultural trade, is a genus of the Orchid family (Orchidaceae). The name of this genus has been derived from the Greek words 'aer' (air) and 'angos' (urn), referring to the form of the lip. It is the type ...

'' *'' Aeranthes'' *''

Aerides ''Aerides'', known commonly as cat's-tail orchids and fox brush orchids, is a genus belonging to the orchid family (Orchidaceae, subfamily Epidendroideae, tribe Vandeae, subtribe Aeridinae). It is a group of tropical epiphyte orchids that gr ...

'' Lour.: fox brush orchid *''

'' *'' Aglossorrhyncha'' *'' Agrostophyllum'' *'' Alamania'' *'' Alatiliparis'': new genus with 2 species, discovered in Sumatra,

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

*'' Altensteinia'' *'' Amblyanthe'' *'' Amblostoma'' Scheidw. *''

Ambrella was a Japanese video game development company that worked under a publishing agreement with Nintendo. They were best known for making spin-off games for the ''Pokémon'' video game franchise, particularly the '' Pokémon Rumble'' series. Ambr ...

'' *'' Amerorchis'': round-leaf orchid *'' Amesiella'' *'' Amoana'' *''

Amparoa ''Rhynchostele'' is a genus of flowering plants from the orchid family, Orchidaceae, native to Mexico, Central America and Venezuela. The genus name is abbreviated as ''Rst.'' in the horticultural trade. Species At the present time (May 2014), 1 ...

'' *'' Amphigena'' *''

Anacamptis ''Anacamptis'' is a genus of flowering plants in the orchid family ( Orchidaceae); it is often abbreviated as Ant in horticulture. This genus was established by Louis Claude Richard in 1817; the type species is the pyramidal orchid (''A. pyr ...

'' Rich. *''

Anacheilium ''Epidendrum'' , abbreviated Epi in the horticultural trade, is a large neotropical genus of the orchid family. With more than 1,500 species, some authors describe it as a mega-genus. The genus name (from Greek ''επί, epi'' and ''δένδρο ...

'' Withner & P.A.Harding *''

Anathallis ''Anathallis'' is a genus of orchids, comprising about 97 species native to Mexico, Central America, South America and the West Indies. Selected species The genus includes the following species: * '' Anathallis abbreviata'' * '' Anathallis acu ...

'' *'' Ancipitia'' *''

Ancistrochilus ''Ancistrochilus'' is a genus of the orchid family (biology), family (Orchidaceae), comprising only 2 species. Description These two species are cool to hot growing orchids, found from tropical West Africa to Tanzania and Uganda. They grow on tr ...

'' Rolfe *'' Ancistrorhynchus'' *'' Angraecopsis'' *''

Angraecum The genus ''Angraecum'', abbreviated as Angcm in horticultural trade, common name comet orchid, contains about 220 species. Etymology Despite the genus's distribution being largely confined to Africa and its offshore islands, the genus name is a ...

'' bory *'' Anguloa'' *'' Ania'' *''

Anoectochilus ''Anoectochilus'', commonly known as marbled jewel orchids or filigree orchids, is a genus of about fifty species in the orchid family Orchidaceae. They are terrestrial herbs with a creeping rhizome, an upright flowering stem and dark coloured ...

'': jeweled orchid *'' Ansellia''

*'' Anteriorchis'' (synonym of ''Anacamptis'') *''

Anthogonium ''Anthogonium'' is a genus of orchids (family Orchidaceae). At the present time (May 2014), only one species is recognized, i.e., ''Anthogonium gracile'' found in India, Assam, Bangladesh, Nepal, Bhutan, Myanmar, Laos, Cambodia, Vietnam, Thailan ...

'' *'' Anthosiphon'' *'' Antilla'' *'' Antillanorchis'' *'' Aorchis'' *'' Aphyllorchis'' *''

Aplectrum ''Aplectrum hyemale'' is a species of orchid native to the eastern United States and Canada, from Oklahoma east to the Carolinas and north to Minnesota, Ontario, Quebec and Massachusetts. It is particularly common in the Appalachian Mountains, th ...

'' Nuttall: Adam and Eve *'' Apoda-prorepentia'' *'' Aporostylis'' *'' Aporum'' *'' Apostasia'' Blume *''

Appendicula ''Appendicula'', commonly known as stream orchids or 牛齿兰属 (niu chi lan shu), is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, o ...

'' *'' Aracamunia'' *'' Arachnis'' Blume *'' Arachnites'' *'' Archineottia'' *'' Areldia'' *'' Arethusa'': dragon's mouth *''

Armodorum The genus ''Arachnis'', abbreviated as Arach in horticultural trade, (scorpion orchid,) is a member of the Orchid family (Orchidaceae), consisting of more than 20 species native to China, India, Southeast Asia, Indonesia, the Philippines, New Gu ...

'' *'' Arnottia'' *'' Arpophyllum'' *''

Arthrochilus ''Arthrochilus'', commonly called elbow orchids, is a genus of about fifteen species of flowering plants from the orchid family (Orchidaceae) and is found in Australia and New Guinea. The flowers are pollinated by male thynnid wasps which attem ...

'' *'' Artorima'' *''

Arundina ''Arundina graminifolia'' is a species of orchid and the sole accepted species of the genus ''Arundina''. This tropical Asiatic genus extends from Myanmar, India, Sri Lanka, Nepal, Thailand, Vietnam, the Ryukyu Islands, Malaysia, Singapore, Chi ...

'' Blume: bamboo orchid *'' Ascidieria'' *''

Ascocentrum ''Vanda'', abbreviated in the horticultural trade as ''V.,'' is a genus in the orchid family, Orchidaceae. There are about 87 species, and the genus is commonly cultivated for the marketplace. This genus and its allies are considered to be among ...

'' *''

Ascochilopsis ''Grosourdya'' is a genus of flowering plants from the orchid family, Orchidaceae. As of May 2022, it contains 26 known species, native to Southeast Asia. #'' Grosourdya appendiculata'' (Blume) Rchb.f. - widespread from Hainan to the Andaman Isl ...

'' *''

Ascochilus ''Grosourdya'' is a genus of flowering plants from the orchid family, Orchidaceae. As of May 2022, it contains 26 known species, native to Southeast Asia. #'' Grosourdya appendiculata'' (Blume) Rchb.f. - widespread from Hainan to the Andaman Isl ...

'' *''

Ascoglossum ''Renanthera caloptera'' is a species in the family Orchidaceae. It was formerly the only species in the monotypic genus ''Ascoglossum'', abbreviated Ascgm in the horticultural trade. It is endemic to Dinagat Island in the southern Philippines an ...

'' *'' Ascolabium'' *''

Aspasia Aspasia (; grc-gre, Ἀσπασία ; after 428 BC) was a ''metic'' woman in Classical Athens. Born in Miletus, she moved to Athens and began a relationship with the statesman Pericles, with whom she had a son, Pericles the Younger. Acco ...

'' *'' Aspidogyne'' *'' Atopoglossum'' *'' Aulosepalum'' *''

Auxopus ''Auxopus'' is a genus of the family Orchidaceae. It belongs to the tribe Gastrodieae. Little is known about the flower structure of members of Gastrodieae, which are saprophytic. ''Auxopus'' are leafless and contain inflorescences of flowers ...

'' *'' Azadehdelia'' (synonym of '' Cribbia'' Senghas)

B

*'' Baptistonia'' Barb.Rodr. *'' Barbosella'' *'' Barbrodria'' *''

Barkeria ''Barkeria'', abbreviated Bark in horticultural trade, is a genus of orchids. It consists of about 17 currently recognized (May 2014) species native to Mexico and Central America. This genus was once considered part of ''Epidendrum''. Type specie ...

'' *''

Barlia ''Himantoglossum'' is a genus of orchids native to the Canary Islands, Europe, southwest Asia and northern Africa. Its members generally have a Labellum (botany), labellum which is divided into three parts, of which the middle part is the longest ...

'' *''

Bartholina ''Bartholina'' is an orchid genus native to South Africa and Namibia. A member of the Fynbos plant kingdom, ''Bartholina'' is also known as the "spider orchid". The common name comes from the array of long, narrow petal lobes that surround the ...

'' *'' Basigyne'' *'' Basiphyllaea'': crab orchid *'' Baskervilla'' *'' Batemannia'' *'' Beclardia'' *'' Beloglottis'' *''

Benthamia ''Benthamia'' is a genus of orchids. It contains 29 recognized species, all native to Madagascar, Mauritius and Réunion Réunion (; french: La Réunion, ; previously ''Île Bourbon''; rcf, label= Reunionese Creole, La Rényon) is an islan ...

'' *'' Benzingia'' *'' Bhutanthera'' *'' Bidoupia'' *''

Biermannia ''Biermannia'' is a genus of flowering plants from the orchid family, Orchidaceae. It is native to eastern India, China and Southeast Asia. Species The following species are accepted as of May 2014: #''Biermannia arunachalensis'' A.N.Rao - Ar ...

'' *'' Bifrenaria''

*'' Binotia'' *''

Bipinnula ''Bipinnula'' is a genus of flowering plants from the orchid family, Orchidaceae. It is native to South America (Brazil, Argentina, Uruguay, Chile). Species Accepted species as of May 2014: * '' Bipinnula biplumata'' (L.f.) Rchb.f. - Brazil, ...

'' *'' Bletia'' Ruiz and Pavon: pine-pink *''

Bletilla ''Bletilla'', common name urn orchid, is a temperate, terrestrial genus of orchids containing five currently recognized species distributed through China, Japan, Taiwan, south to Vietnam, Thailand and Myanmar. The name is actually a diminutive ...

'' Rchb.F.: urn orchid *'' Bogoria'' *'' Bolbidium'' *'' Bollea'' Rchb.F. *'' Bolusiella'' *'' Bonatea''

Willd. Carl Ludwig Willdenow (22 August 1765 – 10 July 1812) was a German botanist, pharmacist, and plant taxonomist. He is considered one of the founders of phytogeography, the study of the geographic distribution of plants. Willdenow was al ...

*'' Bonniera'' *''

Brachionidium ''Brachionidium'' (or cup orchid) is a genus of about 72 species of orchids, found throughout much of tropical America (Central America, the West Indies, and South America as far south as Brazil and Bolivia).Luteyn, J. L. 1999. Páramos, a check ...

'': cup orchid *'' Brachtia'' *'' Brachycorythis''

*'' Brachypeza'' *'' Brachystele'' *'' Bracisepalum'' *'' Braemia'' *''

Brassavola ''Brassavola'' is a genus of 21 orchids (family Orchidaceae). They were named in 1813 by the Scottish botanist Robert Brown. The name comes from the Italian nobleman and physician Antonio Musa Brassavola. This genus is abbreviated B. in trade jo ...

'' R.Br.: daddy-long-legs *''

Brassia ''Brassia'' is a genus of orchids classified in the subtribe Oncidiinae. It is native to Mexico, Central America, the West Indies, and northern South America, with one species (''B. caudata'') extending into Florida. The genus was named aft ...

'': cricket orchid *'' Brenesia'' *'' Briegeria'' *'' Bromheadia'' *'' Broughtonia'' R.Br. *'' Brownleea'' *'' Bryobium'' *'' Buchtienia'' *''

Bulbophyllum ''Bulbophyllum'' is a genus of mostly epiphytic and lithophytic orchids in the family Orchidaceae. It is the largest genus in the orchid family and one of the largest genera of flowering plants with more than 2,000 species, exceeded in number o ...

'' Thouars: rat-tail orchid *'' Bulleyia'' *''

Burnettia ''Burnettia cuneata'', commonly known as the lizard orchid, is the only species of the flowering plant genus ''Burnettia'' in the orchid family, Orchidaceae. It is a leafless terrestrial, mycotrophic herb with one or two leaf-like bracts and ...

'' *'' Burnsbaloghia''

C

*'' Cadetia'' Gaudich. *'' Caladenia'' R.Br. Calanthe-triplicata

*'' Calanthe'' R.Br. *''

Caleana ''Caleana'', commonly known as duck orchids, is a genus of flowering plants in the orchid family, Orchidaceae that is found in Australia and New Zealand. The Australian species are found in all states but have not been recorded in the Northern ...

'' R.Br. *'' Callostylis'' *''

Calochilus ''Calochilus'', commonly known as beard orchids, is a genus of about 30 species of plants in the orchid family, Orchidaceae. Beard orchids are terrestrial herbs with a single leaf at the base of the plant, or no leaves. Their most striking feat ...

'' R.Br.: bearded orchids *''

Calopogon ''Calopogon'', grass pink, is a genus of terrestrial orchids (family (biology), family Orchidaceae). The generic name is from Greek language, Greek and means "beautiful beard", referring to the cluster of hairs adorning the Labellum (botany), ...

'' R.Br.: grasspink *'' Caluera'' *'' Calymmanthera'' *'' Calypso'' Salisb.: fairy-slipper orchid *'' Calyptrochilum'' *'' Camaridium'' *'' Campanulorchis'' *'' Campylocentrum'': bent-spur orchid *''

Capanemia ''Capanemia'' is a genus of flowering plants from the orchid family, Orchidaceae. It contains 9 recognized species, all from South America: #'' Capanemia adelaidae'' Porto & Brade - Brazil #'' Capanemia brachycion'' (Griseb.) Schltr. - Rio Grand ...

'' *'' Cardiochilos'' *''

Catasetum ''Catasetum'', abbreviated as Ctsm. in horticultural trade, is a genus of showy epiphytic Orchids, family Orchidaceae, subfamily Epidendroideae, tribe Cymbidieae, subtribe Catasetinae, with 166 species, many of which are highly prized in hortic ...

'' *''

Cattleya ''Cattleya'' () is a genus of orchids from Costa Rica south to Argentina. The genus is abbreviated C in trade journals. Description Epiphytic or terrestrial orchids with cylindrical rhizome from which the fleshy noodle-like roots grow. Ps ...

*'' Cattleyella'' Van den Berg & M.W.Chase *'' Cattleyopsis'' Lemaire *'' Caucaea'' *''

Caularthron ''Caularthron'' Raf. (1837), abbreviated Cau. in the horticultural trade, is a genus of orchids with 4 species.Information retrieved from http://apps.kew.org/wcsp/qsearch.do on October 3, 2010, after entering "Caularthron". They are epiphytic o ...

'' Raf. *'' Centroglossa'' *'' Centrostigma'' Schltr. *'' Cephalanthera'' Rich.: some helleborines, phantom orchid *'' Cephalantheropsis'' *'' Ceraia'' *'' Ceratandra'' *'' Ceratocentron'' *'' Ceratochilus'' *'' Ceratostylis'' Blume *'' Chamaeangis'' *'' Chamaeanthus'' *'' Chamaegastrodia'' *'' Chamelophyton'' *''

Chamorchis ''Chamorchis'' is a genus of flowering plants from the orchid family, Orchidaceae. It contains only one known species, ''Chamorchis alpina'', known as the false orchid or false musk orchid, and found in subarctic and subalpine parts of Europe: Sc ...

'' *'' Changnienia'' *'' Chaseella'' *'' Chaubardia'' *''

Chaubardiella ''Chaubardiella'' is a genus of flowering plants from the Cymbidieae of the orchid family, Orchidaceae, native to Costa Rica and South America. #'' Chaubardiella dalessandroi'' Dodson & Dalström - Ecuador #'' Chaubardiella delcastilloi'' D.E.Be ...

'' *'' Chauliodon'' *'' Cheiradenia'' *'' Cheirostylis'' *'' Chelonistele'' *'' Chelyorchis'' *''

Chiloglottis ''Chiloglottis'', commonly known as wasp orchids, ant orchids or bird orchids, is a genus of about 25 species of flowering plants in the orchid family, Orchidaceae and is found in eastern Australia and New Zealand. Wasp orchids are terrestrial ...

'' R.Br. *'' Chilopogon'' *''

Chiloschista ''Chiloschista'', commonly known as starfish orchids and abbreviated ''Chsch.'', is a genus of usually leafless, epiphytic or lithophytic orchids found in India, Southeast Asia and Australia. Description Orchids in the genus ''Chiloschista'' ar ...

*'' Chiloterus'' *'' Chitonanthera'' *'' Chitonochilus'' *''

Chloraea ''Chloraea'' is a genus of flowering plants from the orchid family, Orchidaceae. It contains 52 currently recognized species, native to South America and to the Falkland Islands. Species # '' Chloraea alpina'' # '' Chloraea apinnula'' # '' C ...

'' *'' Chondradenia'' *'' Chondrorhyncha''

*'' Christensonella '' *'' Chroniochilus'' *'' Chrysocycnis'' *'' Chrysoglossum'' *'' Chusua'' *'' Chysis''

*'' Chytroglossa'' *'' Cirrhaea''

*''

Cirrhopetalum ''Bulbophyllum'' sect. ''Cirrhopetalum'' is a Section (biology), section of the genus ''Bulbophyllum''. The taxon name comes from Latin ''cirrus'' (''fringe'') and Greek language, Greek ''petalon'' (''petal''), hence meaning ''fringed-petaled'' ...

'' *'' Cischweinfia'' *'' Claderia'' *'' Cleisocentron'' *'' Cleisomeria'' *'' Cleisostoma'' Blume *'' Cleistes'' *'' Cleistesiopsis'' rosebud orchid *''

Clematepistephium ''Clematepistephium'' is a genus of flowering plants from the orchid family, Orchidaceae. It contains only one known species, ''Clematepistephium smilacifolium'', endemic to the island of New Caledonia. Its closest relative is ''Eriaxis'',Cameron ...

'' *'' Clowesia''

*'' Coccineorchis'' *'' Cochleanthes'' Raf.: fan-shape orchid *''

Cochlioda ''Oncidium'', abbreviated as Onc. in the horticultural trade, is a genus that contains about 330 species of orchids from the subtribe Oncidiinae of the orchid family (Orchidaceae). As presently conceived (May 2014), it is distributed across much ...

*'' Cocleorchis'' *''

Codonorchis ''Codonorchis'' is a genus of flowering plants from the orchid family, Orchidaceae. There are two known species: *'' Codonorchis canisioi'' Mansf. - Brazil (State of Rio Grande do Sul) *''Codonorchis lessonii'' (d'Urv.) Lindl. - Argentina, Chil ...

'' *'' Codonosiphon'' *'' Coelia''

*'' Coeliopsis'' *'' Coeloglossum'': frog orchid *''

Coelogyne ''Coelogyne'' is a genus of over 200 sympodial epiphytes from the family Orchidaceae, distributed across India, China, Indonesia and the Fiji islands, with the main centers in Borneo, Sumatra and the Himalayas. They can be found from tropical l ...

*''

Coilochilus ''Coilochilus'' is a genus of flowering plants in the orchid family, Orchidaceae. It contains only one known species, ''Coilochilus neocaledonicum'', endemic to New Caledonia. Its closest relative is ''Cryptostylis'',Kores, P. J., M. Molvray, P. ...

'' *'' Coilostylis'' Withner & P.A.Harding *'' Collabium'' *'' Colombiana'' *'' Comparettia'' Poepp. & Endl.: snail orchid *'' Comperia'' *'' Conchidium'' *'' Condylago'' Luer *'' Constantia'' *'' Corallorhiza'' (Haller) Chatelaine: coral root *'' Cordiglottis'' *'' Corunastylis'' *''

Coryanthes ''Coryanthes'', commonly known as bucket orchids, is a genus of neotropical epiphytic orchids (family Orchidaceae). This genus is abbreviated as Crths in horticultural trade. They are native to South America, Central America, Mexico and Trinida ...

'' Hook.: bucket orchids *'' Corybas'' Salisb. *'' Corycium'' *'' Corymborkis'': crow orchid *'' Corysanthes'' *'' Cottonia'' *'' Cotylolabium'' *'' Cranichis'': helmet orchid *''

Cremastra ''Cremastra'' is a genus of flowering plants from the orchid family, Orchidaceae. It contains 4 currently recognized species (as of May 2014), native to China, Japan, Korea, Thailand, the Himalayas, and the Russian Far East. See also * Lis ...

'' *'' Crepidium'' *'' Cribbia'' *'' Crocodeilanthe'' *'' Crossoglossa'' *'' Cryptarrhena'' *'' Cryptocentrum'' *'' Cryptochilus'' *'' Cryptopus'' *'' Cryptopylos'' *''

Cryptostylis ''Cryptostylis'', commonly known as tongue orchids, is a genus of flowering plants from the orchid family. Tongue orchids are terrestrial herbs with one to a few stalked leaves at the base of the flowering stem, or leafless. One to a few dull c ...

'' R.Br. *'' Cucumeria'' *''

Cuitlauzina ''Cuitlauzina'' is a genus of flowering plants from the orchid family, Orchidaceae. It contains 8 recognized species, native to Mexico, Central America and Colombia. Species See also * List of Orchidaceae genera References * Pridgeon, A.M., ...

'' *'' Cyanaeorchis'' *''

Cyanicula ''Caladenia'', commonly known as spider orchids, is a genus of 350 species of plants in the orchid family, Orchidaceae. Spider orchids are terrestrial herbs with a single hairy leaf and a hairy stem. The labellum is fringed or toothed in most ...

'' *'' Cybebus'' *'' Cyclopogon'': ladies'-tresses *'' Cycnoches''

: swan orchids *'' Cylindrolobus'' *'' Cymbidiella'' Rolfe *''

Cymbidium ''Cymbidium'' , commonly known as boat orchids, is a genus of evergreen flowering plants in the orchid family Orchidaceae. Orchids in this genus are epiphytic, lithophytic, terrestrial or rarely leafless saprophytic herbs usually with pseudob ...

'' Sw. *'' Cymboglossum'' *''

Cynorkis ''Cynorkis'' is a genus of flowering plants from the orchid family, Orchidaceae. It is native to tropical and southern Africa, as well as several islands in the Indian Ocean. Species # '' Cynorkis alborubra'' # '' Cynorkis ambondrombensis'' # ...

'' Thouars *'' Cyphochilus'' *'' Cypholoron'' *''

Cypripedium ''Cypripedium'' is a genus of 58 species and nothospecies of hardy orchids; it is one of five genera that together compose the subfamily of lady's slipper orchids ( Cypripedioideae). They are widespread across much of the Northern Hemisphere, i ...

'' L.: lady's slipper *'' Cyrtidiorchis'' *'' Cyrtochilum'' *'' Cyrtopodium'' R.Br.: cow-horn orchid *'' Cyrtorchis'' Schltr. *'' Cyrtosia'' *''

Cyrtostylis ''Cyrtostylis'', commonly known as gnat orchids, is a genus of five or six species of flowering plants in the orchid family Orchidaceae and is native to Australia and New Zealand. Cyrtostylis orchids often form dense colonies of genetically id ...

'' *'' Cystorchis''

D

*'' Dactylorchis'' *'' Dactylorhiza'': key flower *'' Dactylorhynchus'' *'' Dactylostalix'' *'' Degranvillea'' *'' Deiregyne'' *'' Demorchis'' *''

Dendrobium ''Dendrobium'' is a genus of mostly epiphytic and lithophytic orchids in the family Orchidaceae. It is a very large genus, containing more than 1,800 species that are found in diverse habitats throughout much of south, east and southeast Asi ...

'' *'' Dendrochilum'' *'' Dendrolirium'' *'' Dendrophylax'' *'' Devogelia'' *'' Diadenium'' *'' Diaphananthe'' *'' Diceratostele'' *'' Dicerostylis'' *''

Dichaea ''Dichaea'' is a genus of plants in family Orchidaceae. It contains about 100 species native to tropical America The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country pri ...

'': leafy-stem orchid, leaf-stem orchid *''

Dichromanthus ''Dichromanthus'' is a genus of flowering plants from the orchid family, Orchidaceae. As currently delimited, it is monophyletic and includes four species: # ''Dichromanthus aurantiacus'' (Lex.) Salazar & Soto Arenas - much of Mexico, south to H ...

'' *'' Dickasonia'' *'' Dictyophyllaria'' *'' Didactylus'' *'' Didiciea'' *'' Didymoplexiella'' *'' Didymoplexiopsis'' *'' Didymoplexis'' *'' Dienia'' *'' Diglyphosa'' *'' Dignathe'' *'' Dilochia'' *'' Dilochiopsis'' *'' Dilomilis'': parrot-beak orchid *'' Dimerandra'' *'' Dimorphorchis'' *''

Dinema ''Dinema'' is a genus of orchids. It is represented by a single currently accepted species, ''Dinema polybulbon'', native to Mexico, Central America, and the Caribbean. Description They are epiphytes or lithophytes; with pseudobulbs 10 mm ...

'' *'' Dinklageella'' *'' Diothonea'' *'' Diphylax'' *'' Diplandrorchis'' *'' Diplocaulobium'' *'' Diplocentrum'' *'' Diplolabellum'' *''

Diplomeris ''Diplomeris'' is a genus of flowering plants from the orchid family, Orchidaceae. It is native to China, the Indian subcontinent, and southeast Asia. Three species are currently recognized (June 2014): *'' Diplomeris hirsuta'' (Lindl.) Lindl. ...

'' *'' Diploprora'' *'' Dipodium'' *'' Dipteranthus'' *'' Dipterostele'' *''

Disa Disa is the heroine of a Swedish legendary saga, which was documented by Olaus Magnus, in 1555. It is believed to be from the Middle Ages, but includes Old Norse themes. It was elaborated by Johannes Messenius in his drama ''Disa'', which was t ...

'' *'' Discyphus'' *'' Disperis'' *'' Disticholiparis'' Marg. & Szlach *'' Distylodon'' *'' Diteilis'' *'' Dithyridanthus'' *''

Diuris ''Diuris'', commonly known as donkey orchids, bee orchids, nanny goat orchids or pansy orchids, is a genus of more than sixty species of flowering plants in the orchid family, Orchidaceae and is endemic to Australia, apart from one species endem ...

'' *'' Dockrillia'' Briegar, 1981 *'' Dodsonia'' *'' Dolichocentrum'' *'' Domingoa'': Mona *'' Doritis'' *''

Dossinia ''Dossinia'' is a genus of flowering plants from the orchid family, Orchidaceae. At the present time (June 2014), only one species is accepted, ''Dossinia marmorata'', endemic to Borneo. See also *List of Orchidaceae genera This is a list of g ...

'' *'' Dracontia'' *'' Dracula'' *''

Drakaea ''Drakaea'' is a genus of 10 species in the plant family Orchidaceae commonly known as hammer orchids. All ten species only occur in the south-west of Western Australia. Hammer orchids are characterised by an insectoid labellum that is attach ...

'' *'' Dresslerella'' *'' Dressleria'' *'' Dryadella'' *'' Dryadorchis'' *'' Drymoanthus'' *'' Drymoda'' *''

Duckeella ''Duckeella'' is a genus of orchids (family Orchidaceae), belonging to the subfamily Vanilloideae. It has 3 known species, all native to South America: The genus name of ''Duckesia'' is in honour of Adolpho Ducke (1876–1959), an entomologist, b ...

'' *'' Dunstervillea'' *'' Dyakia''

E

*'' Earina'' *'' Eggelingia'' *''

Eleorchis ''Eleorchis'', abbreviated Elo in trade journals, is a genus of terrestrial orchids (family Orchidaceae). , it contains only one recognized species, ''Eleorchis japonica'', native to Japan and to the Kuril Islands The Kuril Islands or Kurile I ...

'' *''

Elleanthus ''Elleanthus'' is a genus of flowering plants from the orchid family, Orchidaceae. They are commonly known as tiger orchid. All the species are native to the warmer parts of the Western Hemisphere (Mexico, Central America, South America, West In ...

'': tiger orchid, praying-virgin *'' Elongatia'' *'' Eloyella'' *'' Eltroplectris'': long-claw orchid *''

Elythranthera ''Elythranthera'', commonly known as enamel orchids, was a previously accepted genus of flowering plants in the orchid family, Orchidaceae. It contained two species and a named hybrid, all endemic to the south-west of Western Australia. The genu ...

'' *'' Embreea'' *''

Empusa Empusa or Empousa (; ; ''plural'': ''Empousai'') is a shape-shifting female being in Greek mythology, said to possess a single leg of copper, commanded by Hecate, whose precise nature is obscure. In Late Antiquity, the empousai have been describ ...

'' *'' Empusella'' (Luer) Luer *'' Encheiridion'' *''

Encyclia :''Encyclia'' is also a Greek term for the Codex Encyclius ''Encyclia'' is a genus of orchids. The genus name comes from Greek ''enkykleomai'' ("to encircle"), referring to the lateral lobes of the lip which encircle the column. It is abbreviated ...

'' Hook.: butterfly orchid *''

Entomophobia Entomophobia sometimes known as Insectophobia is a specific phobia characterized by an excessive or unrealistic fear of one or more classes of insect, and classified as a phobia by the DSM-5. More specific cases includes arachnophobia (fear of spi ...

'' *'' Eparmatostigma'' *'' Ephippianthus'' *'' Epibator'' Luer *'' Epiblastus'' *'' Epiblema'' *'' Epicranthes'' *''

Epidanthus ''Epidendrum'' , abbreviated Epi in the horticultural trade, is a large neotropical genus of the orchid family. With more than 1,500 species, some authors describe it as a mega-genus. The genus name (from Greek ''επί, epi'' and ''δένδρ� ...

'' *''

Epidendrum ''Epidendrum'' , abbreviated Epi in the horticultural trade, is a large neotropical genus of the orchid family. With more than 1,500 species, some authors describe it as a mega-genus. The genus name (from Greek ''επί, epi'' and ''δένδρο ...

'': star orchid *'' Epigeneium'' *'' Epilyna'' *''

Epipactis ''Epipactis'', or helleborine, is a genus of terrestrial orchids consisting of approximately 70 species. This genus is abbreviated as Epcts in horticultural trade. Description Their creeping, fleshy rhizomes grow offshoots, from which then eme ...

'': helleborine *'' Epipogium'' *''

Epistephium ''Epistephium'' is a genus of flowering plants from the orchid family, Orchidaceae. It is native to South America, with a few species in Belize and Trinidad. #'' Epistephium amabile'' Schltr. #'' Epistephium amplexicaule'' Poepp. & Endl. #'' Epi ...

'' *''

Eria ''Eria'' is a genus of orchids with more than 50 species distributed in China, the Himalayas, the Indian Subcontinent, Southeast Asia, New Guinea, Polynesia, Melanesia and Micronesia. Species ''Eria'' species accepted by the Plants of the Wo ...

'' *'' Eriaxis'' *'' Ericksonella'' *''

Eriochilus ''Eriochilus'', commonly known as bunny orchids, is a genus of flowering plants in the orchid family, Orchidaceae that is endemic to Australia. Orchids in this genus are distinguished from those in the similar '' Caladenia'' by having a glabrou ...

'' *'' Eriodes'' *'' Eriopexis'' *'' Eriopsis'' *'' Erycina'' *'' Erythrodes'': false helmet orchids *''

Erythrorchis ''Erythrorchis'', commonly known as bootlace orchids or as 倒吊兰属 (dao diao lan shu), is a genus of two species of climbing, leafless orchids in the family Orchidaceae. Orchids in this genus are climbing or scrambling vines that cling by s ...

'' *'' Esmeralda'' *'' Euanthe'' *'' Eucosia'' *'' Eulophia'': Wildcoco *'' Eulophiella'' *'' Euphlebium'' *'' Euryblema'' Dressler (2005) *'' Eurycaulis'' *'' Eurycentrum'' *'' Eurychone'' *'' Eurystyles'': custard orchid *'' Evotella''

F

*'' Fernandezia'' *'' Ferruminaria'' *'' Fimbriella'' *'' Fimbrorchis'' *'' Flickingeria'' *'' Frigidorchis'' *'' Frondaria'' *'' Fuertesiella'' *'' Funkiella''

G

*''

Galeandra ''Galeandra'', abbreviated as Gal in horticultural trade, is a genus of 37 known species of orchids native to South America, Central America, the West Indies and Florida. Species Species currently accepted as of June 2014: #'' Galeandra arundi ...

'': hooded orchid *'' Galearis'': showy orchid *''

Galeola ''Galeola'' is a genus of orchids (family Orchidaceae) belonging to the subfamily Vanilloideae. All species in this genus are myco-heterotrophic, i.e. they are parasitic upon fungi. The genus is spread throughout southeast Asia (from India to ...

'' *''

Galeottia ''Galeottia'' is a genus of flowering plants from the orchid family, Orchidaceae. It is native to South America, Central America and southern Mexico. #'' Galeottia acuminata'' (C.Schweinf.) Dressler & Christenson #'' Galeottia antioquiana'' (Kr ...

'' *'' Galeottiella'' *'' Garaya'' *''

Gastrochilus ''Gastrochilus'', abbreviated Gchls in horticultural trade, is a genus of plant in family Orchidaceae. It is native to eastern and southeastern Asia, including China, Japan, Bangladesh, Thailand, Malaysia, Indonesia, the Philippines, etc. Speci ...

'' *'' Gastrodia'' *'' Gastrorchis'' *''

Gavilea ''Gavilea'' is a genus of flowering plants from the orchid family, Orchidaceae. It is native to Chile (including the Juan Fernández Islands), Argentina and the Falkland Islands. #'' Gavilea araucana'' (Phil.) M.N.Correa - Chile, Argentina #'' ...

'' *'' Geesinkorchis'' *''

Gennaria ''Gennaria'' is a genus of flowering plants in the orchid family, Orchidaceae. For many years it contained only one species, '' Gennaria diphylla''. A second species, '' Gennaria griffithii'', was added in 2015. The genus name honours Patrizio Ge ...

'' *''

Genoplesium ''Genoplesium'' commonly known as midge orchids, is a genus of about 50 species of flowering plants in the orchid family, Orchidaceae and is found in Australia, New Zealand and New Caledonia. Midge orchids are terrestrial herbs with a single lea ...

'' *'' Genyorchis'' *'' Geoblasta'' *'' Geodorum'' *'' Glomera'' *'' Glossodia'' *'' Glossorhyncha'' *'' Gomesa'' *'' Gomphichis'' *'' Gonatostylis'' *'' Gongora'' *'' Goniochilus'' *''

Goodyera ''Goodyera'', commonly called rattlesnake plantain, jade orchids or ladies' tresses is a wide-ranging genus of orchids in the tribe Cranichideae. About 100 species of ''Goodyera'' have been formally described. With a center of diversity in East ...

'': rattlesnake plantain *'' Govenia'': govenia *'' Gracielanthus'' *'' Grammangis'' *''

Grammatophyllum ''Grammatophyllum'', sometimes abbreviated in horticultural trade as Gram, is a genus of 13 currently known orchid species. The name is derived from the Greek words 'gramma' (a line or streak or mark) and 'phyllon' (leaf), referring to the parall ...

'' *'' Graphorkis'' Thou. *'' Grastidium'' *'' Greenwoodiella'' *''

Grobya ''Grobya'' is a genus of flowering plants from the orchid family, Orchidaceae. It contains 5 known species, all endemic to Brazil. #'' Grobya amherstiae'' Lindl. #'' Grobya cipoensis'' F.Barros & Lourenço #'' Grobya fascifera'' Rchb.f. #'' Grob ...

'' *'' Grosourdya'' *''

Guarianthe ''Guarianthe'', abbreviated ''Gur.'' in the horticultural trade, is a small genus of epiphytic orchids, growing in wet forests in Mexico, Central America, Colombia, Venezuela and Trinidad. It was separated from the bifoliate ''Cattleya ''Ca ...

'' Dressler & W.E.Higgins *'' Gunnarella'' *'' Gunnarorchis'' *''

Gymnadenia ''Gymnadenia'' is a genus of flowering plants in the orchid family ( Orchidaceae) containing 22 terrestrial species. The former genus ''Nigritella'' is now included in ''Gymnadenia''. They can be found in damp meadows, fens and marshes, and on ...

'': fragrant orchid *'' Gymnadeniopsis'' *'' Gymnochilus'' *'' Gynoglottis''

H

*''

Habenaria ''Habenaria'', commonly called rein orchids or bog orchids, is a widely distributed genus of orchids in the tribe Orchideae. About 880 species of ''Habenaria'' have been formally described. They are Indigenous (ecology), native to every continen ...

'': bog orchid, false rein orchid *'' Hagsatera'' *''

Hammarbya ''Hammarbya paludosa'' (or ''Malaxis paludosa'') is a small orchid commonly known as bog orchid, bog adder's-mouth or bog adder's-mouth orchid. It grows in bogs in temperate and subarctic regions of the Northern Hemisphere. Taxonomy It was or ...

'' *'' Hancockia'' *'' Hapalochilus'' *'' Hapalorchis'' *'' Haraella'' *'' Harrisella'': airplant orchid *'' Hederorkis'' *'' Helcia'' *'' Helleriella'': dotted orchid *'' Helonoma'' *''

Hemipilia ''Hemipilia'' is a genus of plants in the family Orchidaceae. It is native to China, the Himalayas and Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia ...

'' *''

Herminium ''Herminium'' is a genus of plants in family Orchidaceae, widespread across much of Europe and Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcon ...

'' *'' Herpetophytum'' *'' Herpysma'' *'' Herschelianthe'' *'' Hetaeria'' *'' Heterotaxis'' *'' Heterozeuxine'' *'' Hexalectris'': crested coralroot *'' Hexisea'' *''

Himantoglossum ''Himantoglossum'' is a genus of orchids native to the Canary Islands, Europe, southwest Asia and northern Africa. Its members generally have a labellum which is divided into three parts, of which the middle part is the longest. The genera ''Co ...

'' *'' Hintonella'' *'' Hippeophyllum'' *'' Hirtzia'' *'' Hispaniella'' *'' Hoehneella'' *'' Hoffmannseggella'' *'' Hofmeisterella'' *'' Holcoglossum'' *'' Holmesia'' *'' Holopogon'' *'' Holothrix'' *'' Homalopetalum'' *'' Horichia'' *''

Hormidium Within the Orchidaceae, ''Hormidium'' was originally a subgenus of the genus ''Epidendrum'', but was later raised to a full genus. It is now considered not to be distinct from the genus ''Prosthechea'', of which it is a synonym. Most of the spec ...

'' *'' Horvatia'' *'' Houlletia'' *'' Huntleya'' *''

Huttonaea ''Huttonaea'' is a genus of flowering plants from the orchid family, Orchidaceae. It contains 5 known species, all native to southern Africa (South Africa and Lesotho Lesotho ( ), officially the Kingdom of Lesotho, is a country landlocked a ...

'' *'' Hybochilus'' *'' Hydrorchis'' *'' Hygrochilus'' *'' Hylophila'' *'' Hymenorchis''

I

*'' Imerinaea'' *'' Imerinorchis'' Szlach (2005) *'' Inobulbon'' *'' Ione'' *'' Ionopsis'': violet orchid *'' Ipsea'' *'' Isabelia'' *'' Ischnocentrum'' *'' Ischnogyne'' *'' Isochilus'': equal-lip orchid *'' Isotria'': fiveleaf orchid *'' Ixyophora'' Dressler (2005)

J

*''

Jacquiniella ''Jacquiniella'' (tufted orchid) is a genus of flowering plants from the orchid family, Orchidaceae. It is native to Mexico, Central America, the West Indies, and South America. The diploid chromosome number of one species, ''J. globosa'', ...

'': tufted orchid *'' Jejosephia'' *'' Jonesiopsis'' *'' Jostia'' *'' Jumellea''

K

*'' Kalimpongia'' *'' Kaurorchis'' *'' Kefersteinia'' *'' Kegeliella'' *'' Kerigomnia'' *'' Kinetochilus'' *'' Kingidium'' *'' Kionophyton'' *'' Koellensteinia'': grass-leaf orchid *'' Konantzia'' *'' Kraenzlinella'' *'' Kreodanthus'' *'' Kryptostoma'' *'' Kuhlhasseltia''

L

*'' Lacaena'' *''

Laelia ''Laelia'' is a small genus of 25 species in the orchid family (Orchidaceae). ''Laelia'' species are found in areas of subtropical or temperate climate in Central and South America, but mostly in Mexico. ''Laelia'' is abbreviated ''L.'' in the ...

'' Lindl. *'' Laeliopsis'' *'' Lanium'' *'' Lankesterella'' *'' Leaoa'' *''

Lecanorchis ''Lecanorchis'' is a genus of orchids (family Orchidaceae) belonging to the subfamily Vanilloideae. The scientific name is derived from the Greek words ''lekane'' (basin) and ''orchis'' (orchid). They occur in mountain forest of the Himalayas, ...

'' *''

Lemboglossum ''Rhynchostele'' is a genus of flowering plants from the orchid family, Orchidaceae, native to Mexico, Central America and Venezuela. The genus name is abbreviated as ''Rst.'' in the horticultural trade. Species At the present time (May 2014), 1 ...

'' *'' Lemurella'' *'' Lemurorchis'' *'' Leochilus'': smooth-lip orchid *''

Lepanthes ''Lepanthes'' (from Greek "scaled-flower") is a large genus of orchids with about 800–1000 species, distributed in the Antilles and from Mexico through Bolivia (with very few species in Brazil). The genus is abbreviated in horticultural trade a ...

'': babyboot orchid *'' Lepanthopsis'': tiny orchid *'' Lepidogyne'' *'' Leporella'' *'' Leptotes'' *'' Lesliea'' *'' Leucohyle'' *'' Ligeophila'' *'' Limodorum'' *'' Lindleyalis'' *'' Liparis'': wide-lip orchid *'' Listrostachys'' *'' Lockhartia'' *'' Loefgrenianthus'' *'' Ludisia'': jewel orchid *''

Lueddemannia ''Lueddemannia'' is a genus of orchids found from Venezuela to Peru. Three species are currently recognized as of June 2014: *''Lueddemannia dalessandroi'' (Dodson) G.Gerlach & M.H.Weber - Ecuador *''Lueddemannia pescatorei'' (Lindl.) Linden & R ...

'' *'' Luisia'' *''

Lycaste ''Lycaste'', abbreviated as Lyc. in horticultural trade, is a genus of orchids that contains about 30 species with egg-shaped pseudobulbs and thin, plicate (pleated) leaves. Description ''Lycaste'' flowers, like all orchid blooms, have three ...

'': bee orchid *'' Lycomormium'' *'' Lyperanthus'' *'' Lyroglossa''

M

*'' Macodes'' *''

Macradenia ''Macradenia'' is a genus of flowering plants from the orchid family, Orchidaceae. It is native to Latin America, the West Indies and Florida.Pridgeon, A.M., Cribb, P.J., Chase, M.C. & Rasmussen, F.N. (2009). Epidendroideae (Part two). Genera Orc ...

'': long-gland orchid *'' Macroclinium'' *'' Macropodanthus'' *''

Malaxis ''Malaxis'', commonly called adder's mouth, is a genus of terrestrial and semiepiphytic orchid Orchids are plants that belong to the family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colo ...

'': adder's mouth orchid *'' Malleola'' *'' Manniella'' *'' Margelliantha'' *''

Masdevallia ''Masdevallia'', abbreviated Masd in horticultural trade, is a large genus of flowering plants of the Pleurothallidinae, a subtribe of the orchid family (Orchidaceae). There are over 500 species, grouped into several subgenera. The genus is nam ...

'' *'' Mastigion'' *''

Maxillaria ''Maxillaria'', abbreviated as Max in the horticultural trade, is a large genus of orchids (family Orchidaceae). This is a diverse genus, with very different morphological forms. Their characteristics can vary widely. They are commonly called s ...

'': tiger orchid, flame orchid *'' Mecopodum'' *'' Mediocalcar'' *'' Megalorchis'' *'' Megalotus'' *'' Megastylis'' *'' Meiracyllium'' *'' Meliorchis'': extinct, 80-million-year-old orchid *'' Mendoncella'' *'' Mesadenella'' *'' Mesadenus'': ladies'-tresses *'' Mesospinidium'' *'' Mexicoa'' *''

Microchilus ''Microchilus'' is a neotropical genus of about 75 species belonging to the orchid family (Orchidaceae). It was first described by Carl Borivoj Presl in 1827, but the genus was not widely recognized until it was separated in 2002 by P. Ormerod ...

'' *''

Microcoelia ''Microcoelia'' is a genus of orchids native to sub-Saharan Africa as well as to Madagascar and other islands of the Indian Ocean The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water ...

'' *'' Micropera'' *'' Microphytanthe'' *'' Microsaccus'' *'' Microtatorchis'' *'' Microterangis'' *'' Microthelys'' *'' Microtis'' *''

Miltonia ''Miltonia'', abbreviated Milt. in the horticultural trade, is an orchid genus comprising twelve epiphyte species and eight natural hybrids. The miltonias are exclusively inhabitants of Brazil, except for one species whose range extends from Bra ...

'' Lindl.: pansy orchid *'' Miltoniopsis'' *'' Mischobulbum'' *'' Mixis'' *'' Mobilabium'' *'' Moerenhoutia'' *'' Monadenia'' *'' Monanthos'' *'' Monomeria'' *'' Monophyllorchis'' *'' Monosepalum'' *''

Mormodes ''Mormodes'', abbreviated as Morm. in the horticultural trade, is a genus of approximately 70-80 species of terrestrial and epiphytic orchids native to Mexico, Central America and South America South America is a continent entirely in ...

'' *'' Mormolyca'' *'' Mycaranthes'' *''

Myoxanthus ''Myoxanthus'' (from Greek for "dormouse" and "flower") is a genus of orchids with about 50 species, widely distributed in Central and South America. This genus is a close ally of ''Pleurothallis''. The genera ''Chaetocephala'' Barb.Rodr., '' ...

'' *'' Myrmechila'' D.L.Jones & M.A.Clem (2005) *'' Myrmechis'' *''

Myrmecophila ''Myrmecophila'' is a genus of plants belonging to the family Orchidaceae. It is native to southern Mexico, Central America, the West Indies and Venezuela. Species in this genus are either epiphytic or lithophytic in their growth habit. Their ...

'' *'' Myrosmodes'' *''

Mystacidium ''Mystacidium'', abbreviated as Mycdm in horticultural trade, is a genus of the orchid family (''Orchidaceae''). It is native to eastern and southern Africa from Tanzania to South Africa. Species accepted as of June 2014: # ''Mystacidium alicia ...

N

*'' Nabaluia'' *'' Nageliella'' *''

Nematoceras ''Corybas'', commonly known as helmet orchids, is a genus of about 120 species of plants in the orchid family, Orchidaceae. Helmet orchids are small, perennial, deciduous herbs and are nearly always terrestrial. They have a single leaf at their ...

'' *'' Neobathiea'' *'' Neobenthamia'' *'' Neobolusia'' *'' Neoclemensia'' *'' Neocogniauxia'' *'' Neodryas'' *'' Neoescobaria'' *'' Neofinetia'' *'' Neogardneria'' *''

Neogyna ''Neogyna'' is a genus of flowering plants in the orchid family, Orchidaceae. It contains only one known species, ''Neogyna gardneriana'', native to Tibet, Yunnan, Bhutan, Assam, Laos, Myanmar, Nepal, Thailand, Laos and Vietnam. See also * Lis ...

'' *'' Neomoorea'' *''

Neotinea ''Neotinea'' is a genus of flowering plants from the orchid family, Orchidaceae. It is native to much of Europe, the Mediterranean region, and the islands of the eastern Atlantic, from the Canary Islands, Canaries, Madeira and Ireland east to Ira ...

'' *''

Neottia ''Neottia'' is a genus of orchids. The genus now includes the former genus ''Listera'', commonly known as twayblades referring to the single pair of opposite leaves at the base of the flowering stem. The genus is native to temperate, subarctic ...

'' (including ''Listera'') *'' Neowilliamsia'' *'' Nephelaphyllum'' *'' Nephrangis'' *'' Nervilia'' *'' Neuwiedia'' *'' Nidema'': fairy orchid *'' Nigritella'' *'' Nitidobulbon '' *'' Nohawilliamsia'' *'' Nothodoritis'' *'' Nothostele'' *''

Notylia ''Notylia'', abbreviated Ntl in horticultural trade, is a genus of orchids. It consists of 56 recognized species, native to Mexico, Central America, Trinidad and South America. Species currently recognized as of June 2014: # ''Notylia albida'' ...

O

*'' Oberonia'' *'' Oberonioides'' *''

Octarrhena ''Octarrhena'', commonly known as grub orchids, is a genus of flowering plants from the orchid family, Orchidaceae. Plants in this genus are small, orchids with short stems, thin roots, short, thick, fleshy leaves arranged in two ranks and tiny f ...

'' *'' Octomeria'' *''

Odontochilus ''Odontochilus'' is a small genus from the orchid family (Orchidaceae). These terrestrial, mycoparasitic orchids occur from China, Japan, the Himalayas, Southeast Asia, New Guinea and Melanesia. The genus is related to '' Gonatostylis'',Alvarez-M ...

'' *'' Odontoglossum'' Kunth *'' Odontorrhynchus'' *'' Oeceoclades'': monk orchid *'' Oeonia'' *'' Oeoniella'' *'' Oerstedella'' *'' Oestlundorchis'' *'' Olgasis'' *'' Oligochaetochilus'' *'' Oligophyton'' *''

Oliveriana ''Oliveriana'' is a genus of flowering plants from the orchid family, Orchidaceae. It contains 6 known species, all native to South America.Pridgeon, A.M., Cribb, P.J., Chase, M.C. & Rasmussen, F.N. (2009). Epidendroideae (Part two). Genera Orchi ...

'' *'' Omoea'' *''

Oncidium ''Oncidium'', abbreviated as Onc. in the horticultural trade, is a genus that contains about 330 species of orchids from the subtribe Oncidiinae of the orchid family (Orchidaceae). As presently conceived (May 2014), it is distributed across much ...

'': dancing-lady orchid *'' Ophidion'' *''

Ophrys The genus ''Ophrys'' is a large group of orchids from the alliance Orchis in the subtribe Orchidinae. They are widespread across much of Europe, North Africa, Caucasus, the Canary Islands, and the Middle East as far east as Turkmenistan. These ...

'': ophrys *'' Orchipedum'' *''

Orchis ''Orchis'' is a genus in the orchid family (Orchidaceae), occurring mainly in Europe and Northwest Africa, and ranging as far as Tibet, Mongolia, and Xinjiang. The name is from the Ancient Greek ὄρχις ''orchis'', meaning "testicle", from ...

'': orchis *'' Oreorchis'' *'' Orestias'' *'' Orleanesia'' *'' Ornithidium '' *'' Ornithocephalus'' *'' Ornithochilus'' *''

Orthoceras ''Orthoceras'' ("straight horn") is a genus of extinct nautiloid cephalopod restricted to Middle Ordovician-aged marine limestones of the Baltic States and Sweden. This genus is sometimes called ''Orthoceratites''. Note it is sometimes misspelle ...

'' *''

Osmoglossum ''Cuitlauzina'' is a genus of flowering plants from the orchid family, Orchidaceae. It contains 8 recognized species, native to Mexico, Central America and Colombia. Species See also * List of Orchidaceae genera This is a list of genera in t ...

'' *'' Ossiculum'' *'' Osyricera'' *'' Otochilus'' *''

Otoglossum ''Otoglossum'' is a genus of flowering plants from the orchid family, Orchidaceae, native to South America and Central America.Jenny, R. (2010). ''Otoglossum'', una revisión taxonómica. Orquideología 27: 63-95. Description They are plants of ...

'' *'' Otostylis'' *'' Oxystophyllum''

P

*'' Pabstia'' Garay *'' Pachites'' *'' Pachyphyllum'' *'' Pachyplectron'' *'' Pachystele'' *'' Pachystoma'' *'' Palmorchis'' *'' Panisea'' *'' Pantlingia'' *''

Paphinia ''Paphinia'', abbreviated in horticultural trade Pna, is a genus of orchids, composed of an estimated 16 species from Central America, northern South America and Trinidad. These species are medium-sized epiphytes with small ovoid pseudobulbs and ...

'' *''

Paphiopedilum ''Paphiopedilum'', often called the Venus slipper, is a genus of the lady slipper orchid subfamily '' Cypripedioideae'' of the flowering plant family Orchidaceae. The genus comprises some 80 accepted taxa including several natural hybrids. The ...

'' *''

Papilionanthe ''Papilionanthe'' (abbreviated ''Ple.'') is a genus of flowering plants from the orchid family, Orchidaceae. It is native to Southeast Asia, southern China, and the Indian Subcontinent. Species *''Papilionanthe biswasiana'' (Ghose & Mukerjee) G ...

'' *'' Papillilabium'' *''

'': Venus' slipper *'' Papperitzia'' *'' Papuaea'' *'' Paradisanthus'' *'' Paralophia'' P.J.Cribb & Hermans (2005) *''

Paraphalaenopsis The genus ''Paraphalaenopsis'', abbreviated as Prphln in horticultural trade, is a member of the orchid family (Orchidaceae), consisting of 4 species Endemism, endemic to Borneo and one natural (unconfirmed) hybrid, ''Paraphalaenopsis × thornton ...

'' *'' Parapteroceras'' *''

Pecteilis ''Pecteilis'' is a genus of flowering plants from the orchid family, Orchidaceae. It is widespread across eastern and southern Asia including the Russian Far East, China, Japan, India, Pakistan, Indochina, and Indonesia. Species See also * List ...

'' *'' Pedilochilus'' *'' Pedilonum'' *''Pelatantheria'' *''Pelexia'': hachuela *''Penkimia'' *''Pennilabium'' *''Peristeranthus'' *''Peristeria (plant), Peristeria'' *''Peristylus'' *''Pescatoria'' *''Phaius'': nun's-hood orchid *''Phalaenopsis'': moth orchid *''Pheladenia'' *''Pholidota (plant), Pholidota'' *''Phoringopsis'' *''Phragmipedium'' *''Phragmorchis'' *''Phreatia'' *''Phymatidium'' *''Physoceras'' *''Physogyne'' *''Pilophyllum'' *''Pinelia'' *''Piperia'': rein orchid *''Pityphyllum'' *''Platanthera'': fringed orchid, bog orchid *''Platantheroides'' *''Platycoryne'' *''Platyglottis'' *''Platylepis'' *''Platyrhiza'' *''Platystele'' *''Platythelys'': jug orchid *''Plectorrhiza'' *''Plectrelminthus'' *''Plectrophora'' *''Pleione (plant), Pleione'' *''Pleurothallis'': bonnet orchid *''Pleurothallopsis'' *''Phreatia, Plexaure'' *''Plocoglottis'' *''Poaephyllum'' *''Podangis'' *''Podochilus'' *''Pogonia (plant), Pogonia'': snake-mouth orchid *''Pogoniopsis'' *''Polycycnis'' *''Polyotidium'' *''Polyradicion'': palmpolly *''Polystachya'' *''Pomatocalpa'' *''Ponera (plant), Ponera'' *''Ponerorchis'' *''Ponthieva'': shadow witch *''Porpax (plant), Porpax'' *''Porphyrodesme'' *''Porphyroglottis'' *''Porphyrostachys'' *''Porroglossum'' *''Porrorhachis'' *''Potosia'' *''Prasophyllum'' *''Prescottia (plant), Prescottia'': Prescott orchid *''Pristiglottis'' *''Proctoria'' *''Promenaea'' *''Prosthechea'' *''Pseudacoridium'' *''Pseuderia'' *''Pseudocentrum'' *''Pseudocranichis'' *''Pseudoeurystyles'' *''Pseudogoodyera'' *''Pseudolaelia'' *''Pseudorchis'' *''Pseudovanilla'' *''Psilochilus'': ragged-lip orchid *''Psychilis'': peacock orchid *''Psychopsiella'' (sometimes included in ''Psychopsis'') *''Psychopsis'': butterfly orchid *''Psygmorchis'' *''Pterichis'' *''Pteroceras'' *''Pteroglossa'' *''Pteroglossaspis'': giant orchid *''Pterostemma'' *''Pterostylis'' *''Pterygodium'' *''Pygmaeorchis'' *''Pyrorchis''

Q

*''Quekettia (plant), Quekettia'' *''Quisqueya (plant), Quisqueya''

R

Flower of Rossioglossum ampliatum - Rspb

*''Rangaeris'' *''Rauhiella'' *''Raycadenco'' *''Reichenbachanthus'' *''Renanthera'' Lour. *''Renantherella'' *''Restrepia'' *''Restrepiella'' *''Restrepiopsis'' *''Rhaesteria'' *''Rhamphorhynchus (plant), Rhamphorhynchus'' *''Rhinerrhiza'' *''Rhetinantha '' *''Rhipidorchis'' *''Rhipidoglossum'' *''Rhizanthella'' *''Rhomboda'' *''Rhynchogyna'' *''Rhyncholaelia'' *''Rhynchophreatia'' *''Rhynchostele'' *''Rhynchostylis'' *''Rhytionanthos'' *''Ridleyella'' *''Rimacola'' *''Risleya'' *''Robiquetia'' *''Rodriguezia'' Ruiz & Pav. *''Rodrigueziella'' *''Rodrigueziopsis'' *''Roezliella'' *''Roeperocharis'' *''Rossioglossum'' *''Rubellia (plant), Rubellia'' (Luer) Luer (2004) *''Rudolfiella'' *''Rusbyella''

S

*''Saccoglossum'' *''Saccolabiopsis'' *''Saccolabium'' *''Sacoila'': terrestrial orchid *''Salacistis'' *''Salpistele'' *''Sanderella'' *''Sarcanthopsis'' *''Sarcochilus'' *''Sarcoglottis'' *''Sarcoglyphis'' *''Sarcophyton (plant), Sarcophyton'' *''Sarcorhynchus'' *''Sarcostoma'' *''Satyridium'' *''Satyrium (plant), Satyrium'' *''Saundersia'' *''Sauroglossum'' *''Sauvetrea '' *''Scaphosepalum'' *''Scaphyglottis'': Malaysian orchid *''Scelochiloides'' *''Scelochilus'' *''Schiedeella'' *''Schistotylus'' *''Schizochilus'' *''Schizodium'' *''Schlimia'' *''Schoenorchis'' *''Schomburgkia'' *''Schunkea'' *''Schwartzkopffia'' *''Scuticaria (plant), Scuticaria'' *''Sedirea'' *''Seegeriella'' *''Seidenfadenia'' *''Seidenfia'' *''Sepalosiphon'' *''Serapias'' *''Sertifera'' *''Sievekingia'' *''Sigmatostalix'' *''Silvorchis'' *''Sinorchis'' *''Sirhookera'' *''Skeptrostachys'' *''Smithsonia'' *''Smitinandia'' *''Sobennikoffia'' *''Sobralia'' *''Solenangis'' *''Solenidiopsis'' *''Solenidium'' *''Solenocentrum'' *''Sophronitella'' *''Sophronitis'' *''Soterosanthus'' *''Sotoa'' *''Spathoglottis'': ground orchid *''Specklinia'' Lindl. (1830) *''Sphyrarhynchus'' *''Sphyrastylis'' *''Stichorkis'' *''Spiculaea'' *''Spilotantha'' Spiranthes romanzoffiana

*''Spiranthes'': ladies'-tresses *''Stalkya'' *''Stanhopea'' *''Staurochilus'' *''Stelis'': leach orchid *''Stellilabium'' *''Stenia'' *''Stenocoryne'' *''Stenoglottis'' *''Stenoptera'' *''Stenorrhynchos'': ladies'-tresses *''Stephanothelys'' *''Stereochilus (plant), Stereochilus'' *''Stereosandra'' *''Steveniella'' *''Stictophyllum'' *''Stigmatodactylus'' *''Stigmatosema'' *''Stolzia (plant), Stolzia'' *''Suarezia (plant), Suarezia'' *''Summerhayesia'' *''Sunipia'' *''Sutrina'' *''Svenkoeltzia'' *''Symphyglossum'' *''Synanthes'' *''Synarmosepalum'' *''Systeloglossum'' *''Sampaguita''

T

*''Taeniophyllum'' *''Taeniorrhiza'' *''Tainia'' *''Talpinaria'' *''Tamayorkis'' *''Tangtsinia'' *''Tapeinoglossum'' *''Taprobanea'' *''Teagueia'' *''Telipogon'' *''Tetragamestus'' *''Tetramicra (plant), Tetramicra'': wallflower orchid *''Teuscheria'' *''Thaia (plant), Thaia'' *''Thecopus'' *''Thecostele'' *''Thelasis'' *''Thelychiton'' *''Thelymitra'' *''Thelyschista'' *''Thrixspermum'' *''Thulinia'' *''Thunia'' *''Thysanoglossa'' *''Ticoglossum'' *''Tipularia'': crippled-cranefly *''Tolumnia (plant), Tolumnia'': dancing-lady orchid, variegated orchid *''Tomzanonia'' *''Townsonia'' *''Trachyrhizum'' *''Traunsteinera'' *''Trevoria'' *''Trias (plant), Trias'' *''Tribulago'' *''Triceratorhynchus'' *''Trichocentrum'' *''Trichoceros'' *''Trichoglottis'' *''Trichopilia'' *''Trichosalpinx'': bonnet orchid *''Trichosma'' *''Trichotosia'' *''Tridactyle'' *''Trigonidium (plant), Trigonidium'' *''Triphora (plant), Triphora'': noddingcaps *''Trisetella'' *''Trizeuxis'' *''Tropidia (plant), Tropidia'': palm orchid *''Trudelia'' *''Tsaiorchis'' *''Tuberolabium'' *''Tubilabium'' *''Tulotis'' *''Tylostigma''

U

*''Uleiorchis'' *''Uncifera'' *''Unciferia'' *''Urostachya''

V

*''Vanda'' *''Vandopsis'' *''Vanilla'': vanilla *''Vargasiella'' *''Vasqueziella'' *''Ventricularia'' *''Vesicisepalum'' *''Vexillabium'' *''Vitekorchis'' *''Vrydagzynea''

W

*''Wallnoeferia'' *''Warmingia'' *''Warrea'' *''Warczewiczella'' *''Warreella'' *''Warreopsis'' *''Warscaea'' *''Winika'' M.Clements et al., 1997 *''Wullschlaegelia'': leafless orchid

X

*''Xenikophyton'' *''Xenosia'' *''Xerorchis'' *''Xiphosium'' *''Xylobium''

Y

*''Yoania'' *''Ypsilopus'' *''Ypsilorchis''

Z

*''Zelenkoa'' M.W.Chase & N.H.Williams *''Zeuxine'': soldier's orchid *''Zhukowskia'' *''Zootrophion'' *''Zygopetalum'' Hook. *''Zygosepalum'' Rchb.f. *''Zygostates'' Image:Epidendrum-ibaguense.jpg, ''Epidendrum ibaguense'' Image:Epidendrum-parkinsonianum.jpg, ''Epidendrum parkinsonianum'' Image:Epidendrum-stamfordianum.jpg, ''Epidendrum stamfordianum'' Image:Maxillaria-rufescens.jpg, ''Maxillaria rufescens'' Image:Maxillaria-tenuifolia.jpg, ''Maxillaria tenuifolia'' Image:Rhynchostlis-gigantea.jpg, ''Rhynchostlis gigantea'' Image:Sarcochilus-harmannii.jpg, ''Sarcochilus hartmannii'' Image:Schomburgkia-undulata.jpg, ''Schomburgkia undulata'' Image:Spiranthes-magnicamporum.we.jpg, Late-flowering ladies'-tresses (''Spiranthes magnicamporum'') Image:Spiranthes-cernua1web.jpg, Nodding ladies'-tresses (''Spiranthes cernua'') Image:Stenoglottis-longifolia.jpg, ''Stenoglottis longifolia'' Image:Orchid-01-KayEss-1.jpeg, Moon orchid (''Phalaenopsis amabilis'') Image:Orchid-05-KayEss-1.jpeg, ''

'' hybrid Image:Cephalanthera rubra var alba Luxemburg.jpg, Phantom orchid (''Cephalanthera rubra var. alba'') Image:Thrixspermum-saruwatarii.jpg, ''Thrixspermum saruwatarii'' Image:Orchis-mascula.jpg, Early Purple orchid (''Orchis mascula'')

References

*The International Code of Botanical Nomenclature (ICBN) (2000). *Dressler, R.L. (1993). Phylogeny and Classification of the Orchid Family. Cambridge Univ. Press *Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (1999). Genera Orchidacearum 1. Oxford Univ. Press. *Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (2001). Genera Orchidacearum 2. Oxford Univ. Press. *Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (2003). Genera Orchidacearum 3. Oxford Univ. Press. *Berg Pana, H. 2005. ''Handbuch der Orchideen-Namen. Dictionary of Orchid Names. Dizionario dei nomi delle orchidee''. Ulmer, Stuttgart *Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (2006). Genera Orchidacearum 4. Oxford Univ. Press. *Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (2009). Genera Orchidacearum 5. Oxford Univ. Press

External links

All recognized monocotiledons species (including Orchid family) - World Checklist of Selected Plant Families, Kew Botanic Garden - UKList of orchid genera (updated 14 Jul 2004)
o
List of orchid hybrids - Royal Horticultural Society - UKOrchid main page - eMonocot website
{{AlphanumericTOC, numbers=, seealso= Lists of orchids, Orchid genera, Lists of plant genera (alphabetic), Orchidaceae