This is a list of genera in the Orchid family (Orchidaceae), originally according to The Families of Flowering Plants - L. Watson and M. J. Dallwitz. This list is adapted on a regular basis with the changes published in the Orchid Research Newsletter which is published twice a year by the Royal Botanic Gardens, Kew. 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 Families Search Page published by the Royal Botanic Gardens, Kew. This list is reflected on Wikispecies Orchidaceae and the new eMonocot website Orchidaceae Juss.
This taxonomy 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 sub-families, tribes and sub-tribes. 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 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.
There are five recognized subfamilies:
A
- Aa
- Aa achalensis Schltr. 1920 (Argentina)
- Aa argyrolepis Rchb.f. 1854 (Colombia to Ecuador)
- Aa calceata (Rchb.f.) Schltr. 1912 (Peru to Bolivia)
- Aa colombiana Schltr. 1920 (Colombia to Ecuador)
- Aa denticulata Schltr. 1920 (Colombia to Ecuador)
- Aa erosa (Rchb.f.) Schltr. 1912 (Peru)
- Aa fiebrigii (Schltr.) Schltr. 1912 (Bolivia)
- Aa gymnandra (Rchb.f.) Schltr. 1912 (Bolivia)
- Aa hartwegii Garay 1978 (Ecuador; Colombia; Venezuela)
- Aa hieronymi (Cogn.) Schltr. 1912 (Argentina)
- Aa inaequalis (Rchb.f.) Schltr. 1912 (Peru to Bolivia)
- Aa leucantha (Rchb.f.) Schltr. 1920 (Colombia to Ecuador)
- Aa lorentzii Schltr. 1920 (Argentina)
- Aa macra Schltr. 1921 (Ecuador)
- Aa maderoi Schltr. 1920 (Venezuela; Colombia; Ecuador)
- Aa mandonii (Rchb.f.) Schltr. 1912 (Peru to Bolivia)
- Aa matthewsii (Rchb.f.) Schltr. 1912 (Peru)
- Aa microtidis Schltr. 1922 (Bolivia)
- Aa nervosa (Kraenzl.) Schltr. 1912 (Chile)
- Aa paleacea (Kunth) Rchb.f. 1854 (Costa Rica to Bolivia)
- Aa riobambae Schltr. 1921 (Ecuador)
- Aa rosei Ames 1922 (Peru)
- Aa schickendanzii Schltr. 1920 (Argentina)
- Aa sphaeroglossa Schltr. 1922 (Bolivia)
- Aa trilobulata Schltr. 1922 (Bolivia)
- Aa weddeliana (Rchb.f.) Schltr. 1912 (Peru to NW Argentina)
- Abdominea
- Aberrantia (Luer) Luer (synonym of Acianthera Scheidw.)
- Acacallis Lindl. (synonym of Aganisia)
- Acacallis coerulea (Rchb. f.) Schltr. 1918 (now synonym of Aganisia fimbriata Rchb.f.)
- Acacallis cyanea Lindl. 1853 (Peru; Venezuela) (now synonym of Aganisia cyanea (Lindl.) Rchb.f)
- Acacallis fimbriata (Rchb. f.) Schltr. 1918 (Peru; Venezuela) (now synonym of : Aganisia fimbriata Rchb.f)
- Acacallis hoehnei (Hoehne) Schltr. 1918 (now synonym of : Aganisia cyanea (Lindl.) Rchb.f.)
- Acacallis oliveriana (Rchb. f.) Schltr. 1914 (now synonym of : Aganisia fimbriata Rchb.f.)
- Acacallis rosariana V.P.Castro & da Silva 2001 (unplaced name)
- Acampe
- Acampe carinata
- Acampe cephalotes
- Acampe joiceyana
- Acampe ochracea
- Acampe pachyglossa
- Acampe praemorsa
- Acampe rigida
- Acanthephippium
- Acanthephippium bicolor (S. India, Sri Lanka, New Guinea).
- Acanthephippium chrysoglossum (W. Sumatra).
- Acanthephippium curtisii (Borneo - Sarawak).
- Acanthephippium eburneum (N. Sumatra, Borneo - Sarawak).
- Acanthephippium gougahensis (Thailand, Vietnam).
- Acanthephippium javanicum (W. Malaysia, Borneo, Java, Sumatra, New Guinea). (type species; commonly grown)
- Acanthephippium lilacinum (N. Borneo).
- Acanthephippium mantinianum (Philippines) (commonly grown)
- Acanthephippium parviflorum (Vietnam, S. Sumatra to Java).
- Acanthephippium sinense (China)
- Acanthephippium splendidum (Sulawesi to SW. Pacific, New Guinea).
- Acanthephippium striatum (E. Himalaya to Java). (commonly grown)
- Acanthephippium sylhetense (Sikkim to Philippines)
- Aceras
- Aceras is a genus of orchid
- Gongora aceras, a species of orchid
- Aceras anthropophorum, a species of orchid
- Aceras caprinum, a species of orchid
- Aceras fragrans, a species of orchid
- Aceratorchis
- Aceratorchis albiflora Schltr., 1922 (Tibet to China - Yunnan).
- Aceratorchis tschiliensis Schltr., 1922 (Qinghai to C. China).
- Acianthera Scheidw.
- Acianthera acuminatipetala (A.Samp.) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 253. 2004
- Acianthera adamantinensis (Brade) F.Barros, Bradea 8(43): 294 (2002).
- Acianthera adiri (Brade) Pridgeon & M.W.Chase, Lindleyana 16(4): 241 (2001).
- Acianthera agathophylla (Rchb.f.) Pridgeon & M.W.Chase, Lindleyana 16(4): 241 (2001).
- Acianthera alborosea (Kraenzl.) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 253. 2004
- Acianthera aphthosa (Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 242 (2001).
- Acianthera aurantiolateritia (Speg.) Pridgeon & M.W.Chase, Lindleyana 16(4): 242 (2001).
- Acianthera aveniformis (Hoehne) C.N.Gonç. & Waechter, Hoehnea 31: 114 (2004).
- Acianthera bicarinata (Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 242 (2001).
- Acianthera bicornuta (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 242 (2001).
- Acianthera bidentula (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 242 (2001).
- Acianthera binotii (Regel) Pridgeon & M.W.Chase, Lindleyana 16(4): 242 (2001).
- Acianthera bohnkiana Campacci & Baptista, (2004).
- Acianthera brachiloba (Hoehne) Pridgeon & M.W.Chase, Lindleyana 16(4): 242 (2001).
- Acianthera capanemae (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 242 (2001).
- Acianthera caparaoensis (Brade) Pridgeon & M.W.Chase, Lindleyana 16(4): 242 (2001).
- Acianthera casapensis (Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 242 (2001).
- Acianthera consimilis (Ames) Pridgeon & M.W.Chase, Lindleyana 16(4): 243 (2001).
- Acianthera crinita (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 243 (2001).
- Acianthera cristata (Barb.Rodr.) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 253. 2004
- Acianthera cryptophoranthoides (Loefgr.) F.Barros, Hoehnea 30(3): 185. 2003 [30 Dec. 2003]
- Acianthera discophylla (Luer & Carnevali) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 253. 2004
- Acianthera duartei (Hoehne) Pridgeon & M.W.Chase, Lindleyana 16(4): 243 (2001).
- Acianthera exarticulata (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 243 (2001).
- Acianthera fabiobarrosii (Borba & Semir) F.Barros & F.Pinheiro, Bradea 8(48): 329 (2002).
- Acianthera fockei (Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 243 (2001).
- Acianthera glanduligera (Lindley) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 253. 2004
- Acianthera glumacea (Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 243 (2001).
- Acianthera gracilisepala (Brade) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 253. 2004
- Acianthera guimaraensii (Brade) F.Barros, Bradea 8(43): 294 (2002).
- Acianthera heliconiscapa (Hoehne) F.Barros, Bradea 8(43): 294 (2002).
- Acianthera heringeri (Hoehne) F.Barros, Hoehnea 30(3): 185. 2003
- Acianthera hoffmannseggiana (Rchb.f.) F.Barros, Hoehnea 30(3): 186. 2003
- Acianthera johannensis (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 244 (2001).
- Acianthera klotzschiana (Rchb.f.) Pridgeon & M.W.Chase, Lindleyana 16(4): 244 (2001).
- Acianthera lanceana (G.Lodd.) Pridgeon & M.W.Chase, Lindleyana 16(4): 244 (2001).
- Acianthera leptotifolia (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 244 (2001).
- Acianthera limae (Porto & Brade) Pridgeon & M.W.Chase, Lindleyana 16(4): 244 (2001).
- Acianthera luteola (Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 244 (2001).
- Acianthera macropoda (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 244 (2001).
- Acianthera macuconensis (Barb.Rodr.) F.Barros, Hoehnea 30(3): 186. 2003
- Acianthera magalhanesii (Pabst) F.Barros, Hoehnea 30(3): 186. 2003
- Acianthera malachantha (Rchb.f.) Pridgeon & M.W.Chase, Lindleyana 16(4): 244 (2001).
- Acianthera marumbyana (Garay) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 254. 2004
- Acianthera melachila (Barb.Rodr.) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 254. 2004
- Acianthera micrantha (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 244 (2001).
- Acianthera miqueliana (H.Focke) Pridgeon & M.W.Chase, Lindleyana 16(4): 244 (2001).
- Acianthera modestissima (Rchb.f. & Warm.) Pridgeon & M.W.Chase, Lindleyana 16(4): 244 (2001).
- Acianthera murexoidea (Pabst) Pridgeon & M.W.Chase, Lindleyana 16(4): 245 (2001).
- Acianthera muscicola (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 245 (2001).
- Acianthera nemorosa (Barb.Rodr.) F.Barros, Hoehnea 30(3): 186. 2003
- Acianthera ochreata (Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 245 (2001).
- Acianthera oligantha (Barb.Rodr.) F.Barros, Hoehnea 30(3): 186. 2003
- Acianthera panduripetala (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 245 (2001).
- Acianthera papillosa (Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 245 (2001).
- Acianthera parahybunensis (Barb.Rodr.) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 254. 2004
- Acianthera pardipes (Rchb.f.) Pridgeon & M.W.Chase, Lindleyana 16(4): 245 (2001).
- Acianthera pavimentata (Rchb.f.) Pridgeon & M.W.Chase, Lindleyana 16(4): 245 (2001).
- Acianthera pectinata (Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 245 (2001).
- Acianthera prolifera (Herb. ex Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 245 (2001).
- Acianthera pubescens (Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 245 (2001).
- Acianthera ramosa (Barb.Rodr.) F.Barros, Hoehnea 30(3): 186. 2003
- Acianthera recurva (Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 246 (2001).
- Acianthera renipetala (Barb.Rodr.) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 254. 2004
- Acianthera rodriguesii (Cogn.) Pridgeon & M.W.Chase, Lindleyana 16(4): 246 (2001).
- Acianthera rostellata (Barb.Rodr.) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 254. 2004
- Acianthera saundersiana (Rchb.f.) Pridgeon & M.W.Chase, Lindleyana 16(4): 246 (2001).
- Acianthera saurocephala (G.Lodd.) Pridgeon & M.W.Chase, Lindleyana 16(4): 246 (2001).
- Acianthera serpentula (Barb.Rodr.) F.Barros, Hoehnea 30(3): 187. 2003
- Acianthera serrulatipetala (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 246 (2001).
- Acianthera silvae (Luer & Toscano) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 254. 2004
- Acianthera sonderiana (Rchb.f.) Pridgeon & M.W.Chase, Lindleyana 16(4): 246 (2001).
- Acianthera spilantha (Babr.Rodr.) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 112: 120 (2007).
- Acianthera strupifolia (Lindley) Pridgeon & M.W.Chase, Lindleyana 16(4): 246 (2001).
- Acianthera teres (Lindley) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 254. 2004
- Acianthera translucida (Barb.Rodr.) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 95: 254. 2004
- Acianthera tricarinata (Poepp. & Endl.) Pridgeon & M.W.Chase, Lindleyana 16(4): 246 (2001).
- Acianthera tristis (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 246 (2001).
- Acianthera violaceomaculata (Hoehne) Pridgeon & M.W.Chase, Lindleyana 16(4): 246 (2001).
- Acianthera wageneriana (Klotzsch) Pridgeon & M.W.Chase, Lindleyana 16(4): 247 (2001).
- Acianthera welsiae-windischiae (Pabst) Pridgeon & M.W.Chase, Lindleyana 16(4): 247 (2001).
- Acianthera yauaperyensis (Barb.Rodr.) Pridgeon & M.W.Chase, Lindleyana 16(4): 247 (2001).
- Acianthus
- Acianthus amplexicaulis (NE. Queensland to EC. New South Wales, New Caledonia) - now classified as Acianthella amplexicaulis.
- Acianthus apprimus Early Mosquito Orchid (NSW Blue Mountains to New England highlands).
- Acianthus borealis Northern Mosquito Orchid (Qld. Mt. Windsor Tableland to Blackdown Tableland).
- Acianthus caudatus Mayfly orchid, dead-horse orchid (SE. Australia) - now classified as Nemacianthus caudatus.
- Acianthus collinus Inland Mosquito Orchid (NSW slopes of Great Darling Range between Taree and Crowther; ACT Black Mountains).
- Acianthus exiguus Tiny Mosquito Orchid (NSW Repton to Wardell).
- Acianthus exsertus Gnat orchid (E. & SE. Australia). (type species).
- Acianthus fornicatus Pixie-caps (E. Australia).
- Acianthus huegelii - now classified as Cyrtostylis huegelii.
- Acianthus ledwardii Ledward's Mosquito Orchid (SE. Queensland)(Extinct).
- Acianthus pusillus Small Mosquito Orchid (Qld. n. to Eungella, NSW, Victoria, Tasmania).
- Acianthus reniformis - now classified as Cyrtostylis reniformis.
- Acianthus sinclairii (New Zealand - incl. Stewart I.), Chatman Is., Kermadec Is.)
- Acianthus sublestus (NE Queensland) - now classified as Acianthella sublesta
- Acianthus tenuissima - now classified as Cyrtostylis tenuissima.
- Acineta Lindl.
- Acineta alticola
- Acineta antioquiae
- Acineta barkeri
- Acineta beyrodtiana
- Acineta chrysantha
- Acineta confusa
- Acineta cryptodonta
- Acineta dalessandroi
- Acineta densa
- Acineta erythroxantha
- Acineta hagsateri
- Acineta hennisiana
- Acineta hrubyana
- Acineta mireyae
- Acineta salazarii
- Acineta sella-turcica
- Acineta sulcata
- Acineta superba
- Ackermania
- Benzingia caudata (Ackerman) Dressler (syns Ackermania caudata, Chondrorhyncha caudata, Stenia caudata) – Peru (Cordillera del Cóndor), Colombiaand Ecuador[citation needed]
- Benzingia cornuta (Garay) Dressler
- Benzingia estradae (Dodson) Dodson
- Benzingia hajekii (D.E.Benn. & Christenson) Dressler (syn. Ackermania hajekii) – Peru; epiphyte, growing in wet tropical forest, at an altitude of around 3600 feet, flowering during June and July[citation needed]
- Benzingia hirtzii Dodson
- Benzingia jarae (D.E.Benn. & Christenson) Dressler (syn. Ackermania jarae) – Peru (Huánuco), threatened[citation needed]
- Benzingia palorae (Dodson & Hirtz) Dressler (syns Ackermania palorae, Stenia palorae))
- Benzingia reichenbachiana (Schltr.) Dressler
- Benzingia thienii (Dodson) P.A.Harding
- Acoridium
- Dendrochilum anfractum – Bent Dendrochilum
- Dendrochilum aurantiacum
- Dendrochilum cobbianum – Cobb's Dendrochilum
- Dendrochilum glumaceum – Hay-scented Orchid, Husk-like Dendrochilum
- Dendrochilum javieriense – Javier's Dendrochilum
- Dendrochilum longifolium
- Dendrochilum magnum – Large Dendrochilum
- Acostaea Schltr.
- Acostaea campylotyle
- Acostaea costaricensis Schltr. (Costa Rica to Ecuador)
- Ascostaea tenax
- Acostaea trilobata
- Acriopsis
- Acriopsis annamica
- Acriopsis borneensis
- Acriopsis carrii
- Acriopsis densiflora
- Acriopsis densiflora var.borneensis
- Acriopsis emarginata (previously classified as Acriopsis javanica)
- Acriopsis floribunda
- Acriopsis gracilis
- Acriopsis indica
- Acriopsis insulari-silvatica
- Acriopsis latifolia
- Acriopsis liliifolia
- Acriopsis nelsoniana
- Acriopsis papuana
- Acriopsis philippinensis
- Acriopsis purpurea
- Acriopsis ridleyi
- Acriopsis sumatrana
- Acrochaene
- Acrolophia
- Acrolophia bolusii
- Acrolophia capensis
- Acrolophia cochlearis
- Acrolophia lamellata
- Acrolophia lunata
- Acrolophia micrantha
- Acrolophia ustulata
- Acrorchis
- Acrorchis roseola
Dressler - Ada
- Ada allenii - Allen’s Ada
- Ada andreettae
- Ada aurantiaca - Red-orange Ada
- Ada bennettiorum - Bennett’s Ada
- Ada brachypus
- Ada chlorops
- Ada elegantula - Elegant Ada
- Ada escobariana
- Ada farinifera
- Ada glumacea - Ada with Spelts
- Ada keiliana - Dr. Keil's Ada
- Ada mendozae
- Ada ocanensis - Ocana Ada
- Ada peruviana
- Ada pozoi - Pozo’s Ada
- Ada rolandoi
- Adamantinia Van den Berg & C.N.Gonç
- Adamantinia
- Adenochilus
- Adenochilus
- Adenoncos
- Adenoncos adenoncoides
- Adenoncos borneensis
- Adenoncos buruensis
- Adenoncos celebica
- Adenoncos elongata
- Adenoncos macranthus
- Adenoncos major
- Adenoncos nasonioides
- Adenoncos papuana
- Adenoncos parviflora
- Adenoncos quadrangularis
- Adenoncos saccata
- Adenoncos suborbicularis
- Adenoncos sumatrana
- Adenoncos triangularis
- Adenoncos triloba
- Adenoncos uniflora
- Adenoncos vesiculosa
- Adenoncos virens
- Adenoncos vivax
- Adrorhizon
- Adrorhizon purpurascens
Hook.f. - Aerangis
- Aerangis alata
- Aerangis albidiflora
- Aerangis albido-rubra
- Aerangis antennophoro
- Aerangis aporoides
- Aerangis appendiculata
- Aerangis arachnites
- Aerangis arachnopus
- Aerangis articulata
- Aerangis biloba
- Aerangis brachycarpa
- Aerangis calligera
- Aerangis caudata
- Aerangis citrata
- Aerangis clavigera
- Aerangis collum-cygni
- Aerangis coriacea
- Aerangis cryptodon
- Aerangis curnowiana
- Aerangis decaryana
- Aerangis distincta
- Aerangis ellisii
- Aerangis fastuosa
- Aerangis flabellifolia
- Aerangis friesiorum
- Aerangis fuscata
- Aerangis grandiflora
- Aerangis hyaloides
- Aerangis jacksonii
- Aerangis kirkii
- Aerangis kotschyana
- Aerangis luteo-alba
- Aerangis luteo-alba var.rhodosticta
- Aerangis macrocentra
- Aerangis malmquistiana
- Aerangis malmquistiana var.venusta
- Aerangis mitrata
- Aerangis modesta
- Aerangis neoperrieri
- Aerangis ramosa
- Aerangis rhodosticta
- Aerangis roseocalcarata
- Aerangis sanderiana
- Aerangis scottii
- Aerangis somalensis
- Aerangis spiculata
- Aerangis stylosa
- Aerangis thomsonii
- Aerangis ugandensis
- Aerangis umbonata
- Aerangis venosa
- Aerangis verdickii
- ×Aerangaeris (Aerangis × Rangaeris)
- ×Amesangis (Aerangis × Amesiella)
- ×Angrangis (Aerangis × Angraecum)
- ×Diaphanangis (Aerangis × Diaphananthe)
- ×Euryangis (Aerangis × Eurychone)
- ×Summerangis (Aerangis × Summerhayesia)
- ×Thesaera (Aerangis × Aeranthes)
- Aeranthes
- Aeranthes adenopoda
- Aeranthes aemula
- Aeranthes africana
- Aeranthes albidiflora
- Aeranthes ambrensis
- Aeranthes angustidens
- Aeranthes antennophora
- Aeranthes arachnitis
- Aeranthes bathieana
- Aeranthes biauriculata
- Aeranthes brevivaginans
- Aeranthes carnosa
- Aeranthes caudata
- Aeranthes crassifolia
- Aeranthes denticulata
- Aeranthes ecalcarata
- Aeranthes erectiflora
- Aeranthes filiformis
- Aeranthes filipes
- Aeranthes gracilis
- Aeranthes grandiflora
- Aeranthes gravenreuthii
- Aeranthes henricii
- Aeranthes imerinensis
- Aeranthes laxiflora
- Aeranthes leandriana
- Aeranthes longipes
- Aeranthes moratii
- Aeranthes multinodis
- Aeranthes neoperrieri
- Aeranthes nidus
- Aeranthes orophila
- Aeranthes orthopoda
- Aeranthes parkesii
- Aeranthes parvula
- Aeranthes perrieri
- Aeranthes peyrotii
- Aeranthes pseudonidus
- Aeranthes pusilla
- Aeranthes ramosa
- Aeranthes rigidula
- Aeranthes robusta
- Aeranthes sambiranoensis
- Aeranthes schlechteri
- Aeranthes setipes
- Aeranthes tenelia
- Aeranthes tenella var.borbonica
- Aeranthes tricalcarata
- Aeranthes tropophila
- Aerides Lour.: Fox Brush Orchid
- Aerides augustianum
- Aerides crassifolium
- Aerides crispum
- Aerides emericii
- Aerides falcata
- Aerides flabellata
- Aerides houlletiana
- Aerides inflexa
- Aerides × jansonii
- Aerides krabiense
- Aerides lawrenciae
- Aerides leeana
- Aerides macmorlandii
- Aerides maculosa
- Aerides multiflorum
- Aerides odorata
- Aerides orthocentrum
- Aerides quinquevulnera
- Aerides ringens
- Aerides roebelenii
- Aerides rosea
- Aerides savageanum
- Aerides shibatianum
- Aerides sukauensis
- Aerides thibautianum
- Aerides timoranum
- Aganisia
- Aganisia cyanea : Blue orchid (S. Trop. America).
- Aganisia fimbriata (N. & W. South America).
- Aganisia pulchella (Trinidad to Brazil). – type species
- Aganisia rosariana (V.P.Castro & J.B.F.Silva) F.Barros & L.R.S.Guim. (2010) - Brazil (Rondônia)
- xDownsara. = Aganisia x Batemannia x Otostylis x Zygosepalum
- xHamelwellsara = Aganisia x Batemannianax Otostylis x Zygopetalum x Zygosepalum
- xMasonara = Promenaea x Aganisia x Batemanniana x Colax x Otostylis x Zygopetalum x Zygosepalum
- xOtonisia = Aganisia x Otostylis
- xZygonisia = Aganisia x Zygopetalum
- Aglossorrhyncha
- Aglossorrhyncha
- Agrostophyllum
- Agrostophyllum acutum (New Guinea).
- Agrostophyllum amboinense JMaluku - Ambon).
- Agrostophyllum appendiculoides (New Guinea).
- Agrostophyllum aristatum (Fiji).
- Agrostophyllum arundinaceum (Borneo).
- Agrostophyllum atrovirens (Maluku - Ambon).
- Agrostophyllum bilobolabellatum (Papua New Guinea).
- Agrostophyllum bimaculatum : Double-spotted Agrostophyllum (New Guinea).
- Agrostophyllum brachiatum (New Guinea).
- Agrostophyllum brachiatum var.brachiatum (New Guinea).
- Agrostophyllum brachiatum var.latibrachiatum (New Guinea).
- Agrostophyllum brevipes (E. Himalaya to Indo-China).
- Agrostophyllum callosum (Nepal to Hainan)
- Agrostophyllum compressum (New Guinea).
- Agrostophyllum crassicaule (New Guinea, Bismarck Archipel).
- Agrostophyllum crassicaule var.bismarckiense (Bismarck Arch.)
- Agrostophyllum crassicaule var.crassicaule (New Guinea).
- Agrostophyllum curvilabre (New Guinea to Solomon Is.).
- Agrostophyllum cyathiforme (W. Malaysia).
- Agrostophyllum cycloglossum (New Guinea).
- Agrostophyllum cyclopense (New Guinea).
- Agrostophyllum denbergeri (Sumatra to Java).
- Agrostophyllum dischorense (New Guinea).
- Agrostophyllum djararatense (Sumatra).
- Agrostophyllum dolychophyllum (New Guinea).
- Agrostophyllum earinoides (New Guinea).
- Agrostophyllum elatum (New Guinea).
- Agrostophyllum elmeri (Philippines).
- Agrostophyllum elongatum : Elongated Agrostophyllum (Malaysia to W. Pacific).
- Agrostophyllum fibrosum (New Guinea)..
- Agrostophyllum finisterrae (New Guinea).
- Agrostophyllum flavidum (Assam).
- Agrostophyllum fragrans (New Guinea).
- Agrostophyllum globiceps (W. Sumatra).
- Agrostophyllum globigerum (N. Borneo).
- Agrostophyllum glumaceum (W. Malaysia).
- Agrostophyllum graminifolium (New Guinea to Vanuatu).
- Agrostophyllum grandiflorum (New Guinea).
- Agrostophyllum indifferens ((Kalimantan).
- Agrostophyllum inocephalum (S. Taiwan to Philippines).
- Agrostophyllum javanicum (W. Malesia).
- Agrostophyllum kaniense (New Guinea).
- Agrostophyllum kusaiense (Caroline Is.).
- Agrostophyllum lamellatum (New Guinea).
- Agrostophyllum lampongense (Sumatra).
- Agrostophyllum laterale (Borneo).
- Agrostophyllum latilobum ( W. & C. Java).
- Agrostophyllum laxum (W. Malaysia).
- Agrostophyllum leucocephalum (New Guinea to SW. Pacific).
- Agrostophyllum leytense (Philippines).
- Agrostophyllum longifolium (Pen. Thailand to Malaysia.)
- Agrostophyllum longivaginatum (Philippines).
- Agrostophyllum luzonense (Philippines).
- Agrostophyllum macrocephalum (New Guinea).
- Agrostophyllum majus (Pen. Thailand to Vanuatu).
- Agrostophyllum malindangense (Philippines).
- Agrostophyllum mearnsii (N. Borneo to Philippines).
- Agrostophyllum megalurum (New Guinea to W. Pacific).
- Agrostophyllum merrillii (Philippines) .
- Agrostophyllum mindanense (Philippines).
- Agrostophyllum montanum : Mountain Agrostophyllum (New Guinea).
- Agrostophyllum mucronatum (New Guinea).
- Agrostophyllum myrianthum (Sikkim, Arunachal Pradesh).
- Agrostophyllum neoguinense (Papua New Guinea).
- Agrostophyllum niveum (New Guinea).
- Agrostophyllum occidentale (Seychelles, N. Madagascar).
- Agrostophyllum palawense (Caroline Is. - Palau).
- Agrostophyllum paniculatum ( New Guinea to Solomon Is. )
- Agrostophyllum papuanum (Papua New Guinea).
- Agrostophyllum parviflorum (Maluku to New Guinea).
- Agrostophyllum patentissimum (New Guinea).
- Agrostophyllum pelorioides (New Guinea).
- Agrostophyllum philippinense (Philippines).
- Agrostophyllum planicaule (Himalaya to Indo-China).
- Agrostophyllum potamophila : River-loving Agrostophyllum (New Guinea).
- Agrostophyllum rigidifolium (New Guinea).
- Agrostophyllum saccatilabium (Philippines).
- Agrostophyllum saccatum (Borneo)..
- Agrostophyllum sepikanum (New Guinea).
- Agrostophyllum seychellarum (Seychelles).
- Agrostophyllum simile (Sulawesi).
- Agrostophyllum spicatum (New Guinea).
- Agrostophyllum stenophyllum (New Guinea.).
- Agrostophyllum stipulatum (Indo-China, Malaysia to Solomon Is.)
- Agrostophyllum stipulatum subsp.bicuspidatum (W. Malaysia).
- Agrostophyllum stipulatum subsp.stipulatum (Indo-China, Malaysia to Solomon Is.)
- Agrostophyllum sumatranum (W. Sumatra, Borneo).
- Agrostophyllum superpositum (New Guinea to Solomon Is.).
- Agrostophyllum tenue (W. Malaysia)..
- Agrostophyllum torricellense (New Guinea to S. Vanuatu).
- Agrostophyllum trifidum (Sumatra, Borneo).
- Agrostophyllum uniflorum (New Guinea).
- Agrostophyllum vanhulstijnii (Maluku) .
- Agrostophyllum ventricosum (New Guinea).
- Agrostophyllum verruciferum (New Guinea).
- Agrostophyllum wenzelii (Philippines).
- Agrostophyllum zeylanicum (Sri Lanka).
- Alamania
- Alamania punicea
Lex. (1825) - Alatiliparis: new genus with 2 species, discovered in Sumatra, Indonesia
- Liparis bautingensis
- Liparis crenulata
- Liparis crenulata
- Liparis goodyeroides
- Liparis hawaiensis (Blume) Lindl.
- Liparis latifolia
- Liparis loeselii
- Liparis nervosa
- Liparis pingxiangensis
- Liparis reflexa
- Altensteinia
- Altensteinia boliviensis Rolfe ex Rusby (1895)
- Altensteinia citrina Garay (1978)
- Altensteinia elliptica C.Schweinf. (1951)
- Altensteinia fimbriata Kunth (1816) - type species -
- Altensteinia longispicata C.Schweinf. (1941)
- Altensteinia marginata Rchb.f. (1878)
- Altensteinia virescens Lindl. (1845)
- Amblyanthe
- Amblostoma Scheidw.
- Ambrella
- Ambrella longituba
- Amerorchis: Round-leaf Orchid
- Amerorchis rotundifolia
(Banks) Hultén - Amesiella
- Amitostigma
- Amparoa
- Amphigena
- Anacamptis Rich.
- Anacheilium Withner & P.A.Harding
- ×Anaphorkis Bourdon, M.F.Bourdon & J.M.H.Shaw (Ansellia × Graphorkis)
- Anathallis
- Ancipitia
- Ancistrochilus Rolfe
- Ancistrorhynchus
- ×Andreettara J.M.H.Shaw (Cochlioda × Miltonia × Odontoglossum).
- Androcorys
- Angraecopsis
- Angraecum Bory
- Anguloa
- Ania
- Anoectochilus: Jeweled Orchid
- Ansellia Lindl.
- Anteriorchis (synonym of Anacamptis)
- Anthogonium
- Anthosiphon
- Antilla
- Antillanorchis
- Aorchis
- Aphyllorchis
- Aplectrum Nuttall: Adam and Eve
- Apoda-prorepentia
- Aporostylis
- Aporum
- Apostasia Blume
- Appendicula
- Aracamunia
- Arachnis Blume
- Arachnites
- Archineottia
- Areldia
- Arethusa: Dragon's Mouth
- Armodorum
- Arnottia
- Arpophyllum
- Arthrochilus
- Artorima
- Arundina Blume: Bamboo Orchid
- Ascidieria
- Ascocentrum
- Ascochilopsis
- Ascochilus
- Ascoglossum
- Ascolabium
- Aspasia
- Aspidogyne
- Atopoglossum
- Aulosepalum
- Auxopus
- Azadehdelia (synonym of Cribbia Senghas)
B
- ×Baptikoa J.M.H.Shaw (Baptistonia × Zelenkoa).
- Baptistonia Barb.Rodr.
- Barbosella
- Barbrodria
- Barkeria
- Barlia
- Bartholina
- Basigyne
- Basiphyllaea: Crab Orchid
- Baskervilla
- Batemannia
- Beclardia
- Beloglottis
- Benthamia
- Benzingia
- Biermannia
- Bifrenaria Lindl.
- Binotia
- Bipinnula
- Bletia Ruiz and Pavon: Pine-pink
- Bletilla Rchb.F.: Urn orchid
- Bogoria
- Bolbidium
- Bollea Rchb.F.
- Bolusiella
- Bonatea Willd.
- Bonniera
- Brachionidium: Cup Orchid
- Brachtia
- Brachycorythis Lindl.
- Brachypeza
- Brachystele
- Bracisepalum
- Braemia
- Brassavola R.Br.: Daddy-long-legs
- Brassia: Cricket orchid
- Brenesia
- Briegeria
- Bromheadia
- Broughtonia R.Br.
- Brownleea
- Buchtienia
- Bulbophyllum Thouars: Rat-tail orchid
- Bulleyia
- Burnettia
- Burnsbaloghia
C
- Cadetia Gaudich.
- Caladenia R.Br.
- Calanthe R.Br.
- Caleana R.Br.
- Callostylis
- Calochilus R.Br.: Bearded Orchids
- Calopogon R.Br.: Grasspink
- Caluera
- Calymmanthera
- Calypso Salisb.: Fairy-slipper Orchid
- Calyptrochilum
- Campanulorchis
- Campylocentrum: Bent-spur Orchid
- Capanemia
- Cardiochilus
- Catasetum
- ×Catcylaelia J.M.H.Shaw (Cattleya × Encyclia × Laelia)
- Cattleya Lindl.
- Cattleyella Van den Berg & M.W.Chase
- Cattleyopsis Lemaire
- ×Catyclia J.M.H.Shaw (Cattleya × Encyclia)
- Caucaea
- Caularthron Raf.
- ×Caultonia Griffits & J.M.H.Shaw (Broughtonia × Caularthron)
- Centroglossa
- Centrostigma Schltr.
- Cephalanthera Rich.: Some helleborines, Phantom orchid
- Cephalantheropsis
- Ceraia
- Ceratandra
- Ceratocentron
- Ceratochilus
- Ceratostylis Blume
- ×Chadwickara G.Monnier & J.M.H.Shaw (Pabstia × Zygopetalum × Zygosepalum)
- Chamaeangis
- Chamaeanthus
- Chamaegastrodia
- Chamelophyton
- Chamorchis
- Changnienia
- Chaseella
- Chaubardia
- Chaubardiella
- Chauliodon
- Cheiradenia
- Cheirostylis
- Chelonistele
- Chelyorchis
- ×Chelyopsis J.M.H.Shaw (Psychopsis Raf. × Chelyorchis Dressler & N.H.Williams).
- Chiloglottis R.Br.
- Chilopogon
- Chiloschista Lindl.
- Chiloterus
- Chitonanthera
- Chitonochilus
- Chloraea
- Chondradenia
- Chondrorhyncha Lindl.
- Chroniochilus
- Chrysocycnis
- Chrysoglossum
- Chusua
- Chysis Lindl.
- Chytroglossa
- Cirrhaea Lindl.
- Cirrhopetalum
- Cischweinfia
- Claderia
- Cleisocentron
- Cleisomeria
- Cleisostoma Blume
- Cleistes: Rosebud Orchid
- Clematepistephium
- Clowesia Lindl.
- Coccineorchis
- Cochleanthes Raf.: Fan-shape Orchid
- Cochlioda Lindl.
- Cocleorchis
- Codonorchis
- Codonosiphon
- Coelia Lindl.
- Coeliopsis
- Coeloglossum: Frog Orchid
- Coelogyne Lindl.
- Coilochilus
- Coilostylis Withner & P.A.Harding
- Collabium
- Colombiana
- Comparettia Poepp. & Endl.: Snail Orchid
- ×Compelenzia (Comparettia × Rodriguezia × Zelenkoa)
- Comperia
- ×Comptoglossum (Himantoglossum Spreng. × Comperia K.Koch)
- Conchidium
- Condylago Leur
- Constantia
- Corallorrhiza (Haller) Chatelaine: Coral Root
- Cordiglottis
- Corunastylis
- Coryanthes Hook.: Bucket Orchids
- Corybas Salisb.
- Corycium
- Corymborkis: Crow orchid
- Corysanthes
- Cottonia
- Cotylolabium
- Cranichis: Helmet orchid
- Cremastra
- Cribbia
- Crocodeilanthe
- Crossoglossa
- Cryptarrhena
- Cryptocentrum
- Cryptochilus
- Cryptopus
- Cryptopylos
- Cryptostylis R.Br.
- Cucumeria
- Cuitlauzina
- Cyanaeorchis
- Cyanicula
- ×Cyanthera
- Cybebus
- Cyclopogon: Ladies'-tresses
- Cycnoches Lindl.: Swan Orchids
- Cylindrolobus
- Cymbidiella Rolfe
- Cymbidium Sw.
- Cymboglossum
- Cynorkis Thouars
- Cyphochilus
- Cypholoron
- Cypripedium L.: Lady's Slipper
- Cyrtidiorchis
- Cyrtochilum
- Cyrtopodium R.Br.: Cow-horn Orchid
- Cyrtorchis Schltr.
- Cyrtosia
- Cyrtostylis
- Cystorchis
D
- Dactylorchis
- Dactylorhiza: Key Flower
- Dactylorhynchus
- Dactylostalix
- Degranvillea
- Deiregyne
- Demorchis
- Dendrobium
- Dendrochilum
- Dendrophylax
- Devogelia
- Diadenium
- Diaphananthe
- Diceratostele
- Dicerostylis
- Dichaea: Leafystem Orchid, Leaf-stem Orchid
- Dichromanthus
- Dickasonia
- Dictyophyllaria
- Didactylus
- Didiciea
- Didymoplexiella
- Didymoplexis
- Diglyphosa
- Dignathe
- Dilochia
- Dilochiopsis
- Dilomilis: Parrot-beak Orchid
- Dimerandra
- Dimorphorchis
- Dinema
- Dinklageella
- Diothonea
- Diphylax
- Diplandrorchis
- Diplocaulobium
- Diplocentrum
- Diplolabellum
- Diplomeris
- Diploprora
- Dipodium
- Dipteranthus
- Dipterostele
- Disa
- Discyphus
- Disperis
- Disticholiparis Marg. & Szlach
- Distylodon
- Diteilis
- Dithyridanthus
- Diuris
- Dockrillia Briegar, 1981
- Dodsonia
- Dolichocentrum
- Domingoa: Mona
- Doritis
- Doritaenopsis'
- Dossinia
- Dracontia
- Dracula
- Drakaea
- Dresslerella
- Dressleria
- Dryadella
- Dryadorchis
- Drymoanthus
- Drymoda
- Duckeella
- Dunstervillea
- Dyakia
E
- Earina
- Eggelingia
- Eleorchis
- Elleanthus: Tiger Orchid, Praying-virgin
- Elongatia
- Eloyella
- Eltroplectris: Long-claw Orchid
- Elythranthera
- Embreea
- Empusa
- Empusella (Luer) Luer
- Encheiridion
- Encyclia Hook.: Butterfly Orchid
- Entomophobia
- Eparmatostigma
- Ephippianthus
- Epibator Luer
- Epiblastus
- Epiblema
- Epicranthes
- Epidanthus
- Epidendrum: Star Orchid
- Epigeneium
- Epilyna
- Epipactis: Helleborine
- Epipogium
- Epistephium
- Eria
- Eriaxis
- Ericksonella
- Eriochilus
- Eriodes
- Eriopexis
- Eriopsis
- Erycina
- Erythrodes: False Helmet Orchis
- Erythrorchis
- Esmeralda
- Euanthe
- Eucosia
- Eulophia: Wild Coco
- Eulophiella
- Euphlebium
- Euryblema Dressler (2005)
- Eurycaulis
- Eurycentrum
- Eurychone
- Eurystyles: Custard Orchid
- Evotella
F
G
- Galeandra: Hooded Orchid
- Galearis: Showy Orchid
- Galeola
- Galeottia
- Galeottiella
- Garaya
- Gastrochilus
- Gastrodia
- Gastrorchis
- Gavilea
- Geesinkorchis
- Gennaria
- Genoplesium
- Genyorchis
- Geoblasta
- Geodorum
- Glomera
- Glossodia
- Glossorhyncha
- Gomesa
- Gomphichis
- Gonatostylis
- Gongora
- Goniochilus
- Goodyera: Rattlesnake Plantain
- Govenia: Govenia
- Gracielanthus
- Grammangis
- Grammatophyllum
- Graphorkis Thou.
- Grastidium
- Greenwoodia
- Grobya
- Grosourdya
- Guarianthe Dressler & W.E.Higgins
- Gularia
- Gunnarella
- Gunnarorchis
- Gymnadenia: Fragrant Orchid
- Gymnadeniopsis
- Gymnochilus
- Gynoglottis
H
- Habenaria: Bog Orchid, False Rein Orchid
- Hagsatera
- Hammarbya
- Hancockia
- Hapalochilus
- Hapalorchis
- Haraella
- Harrisella: Airplant Orchid
- Hederorkis
- Helcia
- Helleriella: Dotted Orchid
- Helonoma
- Hemipilia
- Herminium
- Herpetophytum
- Herpysma
- Herschelianthe
- Hetaeria
- Heterozeuxine
- Hexalectris: Crested Coralroot
- Hexisea
- Himantoglossum
- Hintonella
- Hippeophyllum
- Hirtzia
- Hispaniella
- Hoehneella
- Hoffmannseggella
- Hofmeisterella
- Holcoglossum
- Holmesia
- Holopogon
- Holothrix
- Homalopetalum
- Horichia
- Hormidium
- Horvatia
- Houlletia
- Huntleya
- Huttonaea
- 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: 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 Lindl.
- Laeliocattleya
- Laeliopsis
- Lanium
- Lankesterella
- Leaoa
- Lecanorchis
- Lemboglossum
- Lemurella
- Lemurorchis
- Leochilus: Smooth-lip Orchid
- Lepanthes: Babyboot Orchid
- Lepanthopsis: Tiny Orchid
- Lepidogyne
- Leporella
- Leptotes
- Lesliea
- Leucohyle
- Ligeophila
- Limodorum
- Lindleyalis
- Liparis: Wide-lip Orchid
- Listrostachys
- Lockhartia
- Loefgrenianthus
- Ludisia: Jewel Orchid
- Lueddemannia
- Luisia
- Lycaste: Bee Orchid
- Lycomormium
- Lyperanthus
- Lyroglossa
M
- Macodes
- Macradenia: Long-gland Orchid
- Macroclinium
- Macropodanthus
- Madisonania
- Malaxis: Adder's-mouth Orchis
- Malleola
- Manniella
- Margelliantha
- Masdevallia
- Mastigion
- Maxillaria: Tiger Orchid, Flame Orchid
- Mecopodum
- Mediocalcar
- Megalorchis
- Megalotus
- Megastylis
- Meiracyllium
- Meliorchis: (In 2007, the 20 million year old pollinia of Meliorchis caribea were found on the back of a worker bee trapped in amber.) [1]
- Mendoncella
- Mesadenella
- Mesadenus: Ladies'-tresses
- Mesoglossum
- Mesospinidium
- Mexicoa
- Microchilus
- Microcoelia
- Micropera
- Microphytanthe
- Microsaccus
- Microtatorchis
- Microterangis
- Microthelys
- Microtis
- Miltonia Lindl.: Pansy Orchid
- Miltoniopsis
- Mischobulbum
- Mixis
- Mobilabium
- Moerenhoutia
- Monadenia
- Monanthos
- Monomeria
- Monophyllorchis
- Monosepalum
- Mormodes
- Mormolyca
- Mycaranthes
- Myoxanthus
- Myrmechila D.L.Jones & M.A.Clem (2005)
- Myrmechis
- Myrmecophila
- Myrosmodes
- Mystacidium
N
- Nabaluia
- Nageliella
- Nematoceras
- Neobathiea
- Neobenthamia
- Neobolusia
- Neoclemensia
- Neocogniauxia
- Neodryas
- Neoescobaria
- Neofinetia
- Neogardneria
- Neogyna
- Neomoorea
- Neotinea
- Neottia (including Listera)
- Neottianthe
- Neowilliamsia
- Nephelaphyllum
- Nephrangis
- Nervilia
- Neuwiedia
- Nidema: Fairy Orchid
- Nigritella
- Nohawilliamsia
- Nothodoritis
- Nothostele
- Notylia
O
- Oberonia
- Octarrhena
- Octomeria
- Odontochilus
- Odontoglossum Kunth
- Odontorrhynchus
- Oeceoclades: Monk Orchid
- Oeonia
- Oeoniella
- Oerstedella
- Oestlundorchis
- Olgasis
- Oligochaetochilus
- Oligophyton
- Oliveriana
- Omoea
- Oncidium: Dancing-lady Orchid
- Ophidion
- Ophrys: Ophrys
- Orchipedum
- Orchis: Orchis
- Oreorchis
- Orestias
- Orleanesia
- Ornithocephalus
- Ornithochilus
- Ornithophora
- Orthoceras
- Osmoglossum
- Ossiculum
- Osyricera
- Otochilus
- Otoglossum
- Otostylis
P
- Pabstia Garay
- Pachites
- Pachyphyllum
- Pachyplectron
- Pachystele
- Pachystoma
- Palmorchis
- Palumbina
- Panisea
- Pantlingia
- Paphinia
- Papilionanthe
- Papillilabium
- Paphiopedilum: Venus' Slipper
- Papperitzia
- Papuaea
- Paradisanthus
- Paralophia P.J.Cribb & Hermans (2005)
- Paraphalaenopsis
- Parapteroceras
- Pecteilis
- Pedilochilus
- Pedilonum
- Pelatantheria
- Pelexia: Hachuela
- Pennilabium
- Peristeranthus
- Peristeria
- Peristylus
- Pescatoria
- Phaius: Nun's-hood Orchid
- Phalaenopsis: Moth Orchid
- Pheladenia
- 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
- Pleurothallis: Bonnet Orchid
- Pleurothallopsis
- Plexaure
- Plocoglottis
- Poaephyllum
- Podangis
- Podochilus
- Pogonia: Snake-mouth Orchid
- Pogoniopsis
- Polycycnis
- Polyotidium
- Polyradicion: Palmpolly
- Polystachya
- Pomatocalpa
- Ponera
- Ponerorchis
- Ponthieva: Shadow Witch
- Porolabium
- Porpax
- Porphyrodesme
- Porphyroglottis
- Porphyrostachys
- Porroglossum
- Porrorhachis
- Potosia
- Prasophyllum
- Prescottia: Prescott Orchid
- Pristiglottis
- Proctoria
- Promenaea
- Prosthechea
- Protoceras
- 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
R
- Rangaeris
- Rauhiella
- Raycadenco
- Reichenbachanthus
- Renanthera Lour.
- Renantherella
- Restrepia
- Restrepiella
- Restrepiopsis
- Rhaesteria
- Rhamphorhynchus
- Rhinerrhiza
- Rhipidorchis
- Rhipidoglossum
- Rhizanthella
- Rhynchogyna
- Rhyncholaelia
- Rhynchophreatia
- Rhynchostele
- Rhynchostylis
- Rhytionanthos
- Ridleyella
- Rimacola
- Risleya
- Robiquetia
- Rodriguezia Ruiz & Pav.
- Rodrigueziella
- Rodrigueziopsis
- Roezliella
- Roeperocharis
- Rossioglossum
- Rubellia (Luer) Luer (2004)
- Rudolfiella
- Rusbyella
S
- Saccoglossum
- Saccolabiopsis
- Saccolabium
- Sacoila: Terrestrial Orchid
- Salacistis
- Salpistele
- Sanderella
- Sarcanthopsis
- Sarcochilus
- Sarcoglottis
- Sarcoglyphis
- Sarcophyton
- Sarcorhynchus
- Sarcostoma
- Satyridium
- Satyrium
- Saundersia
- Sauroglossum
- Scaphosepalum
- Scaphyglottis: Malaysian Orchid
- Scelochiloides
- Scelochilus
- Schiedeella
- Schistotylus
- Schizochilus
- Schizodium
- Schlimmia
- Schoenorchis
- Schomburgkia
- Schwartzkopffia
- Scuticaria
- Sedirea
- Seidenfadenia
- Seidenfia
- Sepalosiphon
- Serapias
- Sertifera
- Sievekingia
- Sigmatostalix
- Silvorchis
- Sinorchis
- Sirhookera
- Skeptrostachys
- Smithorchis
- Smithsonia
- Smitinandia
- Sobennikoffia
- Sobralia
- Solenangis
- Solenidiopsis
- Solenidium
- Solenocentrum
- Sophronitella
- Sophronitis
- Soterosanthus
- Spathoglottis: Ground Orchid
- Specklinia Lindl. (1830)
- Sphyrarhynchus
- Sphyrastylis
- Spiculaea
- Spilotantha
- Spiranthes: Ladies'-tresses
- Stalkya
- Stanhopea
- Staurochilus
- Stelis: Leach Orchid
- Stellilabium
- Stenia
- Stenocoryne
- Stenoglottis
- Stenoptera
- Stenorrhynchos: Ladies'-tresses
- Stephanothelys
- Stereochilus
- Stereosandra
- Steveniella
- Stictophyllum
- Stigmatosema
- Stolzia
- Suarezia
- Summerhayesia
- Sunipia
- Sutrina
- Svenkoeltzia
- Symphyglossum
- Synanthes
- Synarmosepalum
- Systeloglossum
T
- Taeniophyllum
- Taeniorrhiza
- Tainia
- Talpinaria
- Tangtsinia
- Tapeinoglossum
- Taprobanea
- Teagueia
- Telipogon
- Tetragamestus
- Tetramicra: Wallflower Orchid
- Teuscheria
- Thaia
- Thecopus
- Thecostele
- Thelasis
- Thelychiton
- Thelymitra
- Thelyschista
- Thrixspermum
- Thulinia
- Thunia
- Thysanoglossa
- Ticoglossum
- Tipularia: Crippled-cranefly
- Tolumnia: Dancing-lady Orchid, Variegated Orchid
- Tomzanonia
- Townsonia
- Trachyrhizum
- Traunsteinera
- Trevoria
- Trias (genus)
- Tribulago
- Triceratorhynchus
- Trichocentrum
- Trichoceros
- Trichoglottis
- Trichopilia
- Trichosalpinx: Bonnet Orchid
- Trichosma
- Trichotosia
- Tridactyle
- Trigonidium
- Triphora: Noddingcaps
- Trisetella
- Trizeuxis
- Tropidia: Palm Orchid
- Trudelia
- Tsaiorchis
- Tuberolabium
- Tubilabium
- Tulotis
- Tylostigma
U
V
- Vanda
- Vandopsis
- Vanilla: Vanilla
- Vargasiella
- Vasqueziella
- Ventricularia
- Vesicisepalum
- Vexillabium
- Vrydagzynea
- ×Vuylstekeara (hybrid of Cochlioda × Miltonia × Odontoglossum)
W
- Wallnoeferia
- Warmingia
- Warrea
- Warreella
- Warreopsis
- Warscaea
- Winika M.Clements et al., 1997
- Wullschlaegelia: Leafless Orchid
X
Y
Z
- Zelenkoa M.W.Chase & N.H.Williams
- Zeuxine: Soldier's Orchid
- Zhukowskia
- Zootrophion
- Zygopetalum Hook.
- Zygosepalum Rchb.f.
- Zygostates
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