Genera  (779)

Genus Subfamily Tribe Subtribe #Species
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#Hybrid
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#Syno
nym
Aa (accepted species) Orchidoideae Cranichideae Cranichidinae 27 (4%) 15
Acampe (accepted species) (Acp.) Epidendroideae Vandeae Aeridinae 8 (62%) 26
Acanthophippium (accepted species) Epidendroideae Collabieae 13 (62%) 12
Achlydosa (accepted species) 1
Acianthera (accepted species) Epidendroideae Epidendreae Pleurothallidinae 292 (35%) 1 59
Acianthus (accepted species) Orchidoideae Diurideae Acianthinae 8 (38%) 44
Acineta (accepted species) (Acn.) Epidendroideae Cymbidieae Stanhopeinae 16 (44%) 22
Acriopsis (accepted species) Epidendroideae Cymbidieae Cymbidiinae 14 (43%) 15
Acrolophia (accepted species) Epidendroideae Cymbidieae Eulophiinae 7 9
Acronia (accepted species) (Aro.) 4 (50%) 278
Acrorchis (accepted species) (Arr.) Epidendroideae Epidendreae Laeliinae 1
Adamantinia (accepted species) (Adn.) Epidendroideae Epidendreae Laeliinae 1
Adenochilus (accepted species) Orchidoideae Diurideae Caladeniinae 2
Adenoncos (accepted species) Epidendroideae Vandeae Aeridinae 17 (29%) 4
Adrorhizon (accepted species) Epidendroideae Vandeae Adrorhizinae 1
Aenhenrya (accepted species) (Aen.) Orchidoideae Cranichideae Goodyerinae 1 1
Aerangis (accepted species) (Aergs.) Epidendroideae Vandeae Angraecinae 62 (52%) 57 (26%) 59
Aeranthes (accepted species) (Aerth.) Epidendroideae Vandeae Angraecinae 46 (26%) 8 (38%) 83
Aerides (accepted species) (Aer.) Epidendroideae Vandeae Aeridinae 31 (74%) 45 (31%) 184
Aetheorhyncha (accepted species) Epidendroideae Cymbidieae Zygopetalinae 1 (100%)
Afropectinariella (published species) 4 (75%) 1
Aganisia (accepted species) (Agn.) Epidendroideae Cymbidieae Zygopetalinae 3 (67%) 16
Aglossorrhyncha (accepted species) Epidendroideae Arethuseae Coelogyninae 16 (6%) 1
Agrostophyllum (accepted species) Epidendroideae Vandeae Agrostophyllinae 152 (6%) 32
Alamania (accepted species) (Al.) Epidendroideae Epidendreae Laeliinae 3 (33%)
Alatiliparis (accepted species) Epidendroideae Malaxideae 5 (40%)
Altensteinia (accepted species) Orchidoideae Cranichideae Cranichidinae 8 (12%) 29
Ambrella (accepted species) Epidendroideae Vandeae Angraecinae 1
Amesiella (accepted species) (Ame.) Epidendroideae Vandeae Aeridinae 3 (100%) 2 (50%) 1
Amoana (accepted species) Epidendroideae Epidendreae Laeliinae 2
Anacamptis (accepted species) (Ant.) Orchidoideae Orchideae Orchidinae 25 (44%) 46 (11%) 132
Anathallis (accepted species) Epidendroideae Epidendreae Pleurothallidinae 171 (26%) 41
Ancistrochilus (accepted species) Epidendroideae Collabieae 2 (100%) 1 3
Ancistrorhynchus (accepted species) Epidendroideae Vandeae Angraecinae 17 (12%) 5
Andinia (accepted species) Epidendroideae Epidendreae Pleurothallidinae 74 (58%)
Androcorys (accepted species) Orchidoideae Orchideae Orchidinae 12 12
Angraecopsis (accepted species) Epidendroideae Vandeae Angraecinae 19 (5%) 37
Angraecum (accepted species) (Angcm.) Epidendroideae Vandeae Angraecinae 239 (36%) 66 (21%) 367
Anguloa (accepted species) (Ang.) Epidendroideae Cymbidieae Maxillariinae 13 (69%) 46 (9%) 39
Ania (accepted species) 6 (67%) 11
Anoectochilus (accepted species) (Anct.) Orchidoideae Cranichideae Goodyerinae 63 (14%) 6 98
Ansellia (accepted species) (Aslla.) Epidendroideae Cymbidieae Cymbidiinae 1 (100%) 10
Anthogonium (accepted species) Epidendroideae Arethuseae Arethusinae 1 (100%) 2
Aphyllorchis (accepted species) Epidendroideae Neottieae 24 (12%) 19
Aplectrum (accepted species) Epidendroideae Calypsoeae 1 (100%) 6
Aporostylis (accepted species) Orchidoideae Diurideae Caladeniinae 1 (100%)
Apostasia (accepted species) Apostasioideae 8 (38%) 16
Appendicula (accepted species) Epidendroideae Podochileae Eriinae 177 (11%) 73
Aracamunia (accepted species) Orchidoideae Cranichideae Spiranthinae 1
Arachnis (accepted species) (Arach.) Epidendroideae Vandeae Aeridinae 18 (61%) 6 (83%) 21
Archivea (accepted species) Epidendroideae Cymbidieae Stanhopeinae 1
Arethusa (accepted species) (Aret.) Epidendroideae Arethuseae Arethusinae 3 (33%) 37
Arnottia (accepted species) Orchidoideae Orchideae Orchidinae 4 4
Arpophyllum (accepted species) (Arpo.) Epidendroideae Epidendreae Laeliinae 6 (67%) 6
Arthrochilus (accepted species) Orchidoideae Diurideae Drakaeinae 17 (12%)
Artorima (accepted species) (Arto.) Epidendroideae Epidendreae Laeliinae 1 (100%)
Arundina (accepted species) (Ar.) Epidendroideae Arethuseae Arethusinae 3 (67%) 2 (50%) 33
Ascidieria (accepted species) Epidendroideae Podochileae Eriinae 15 (13%) 1
Aspasia (accepted species) (Asp.) Epidendroideae Cymbidieae Oncidiinae 7 (86%) 2 11
Aspidogyne (accepted species) Orchidoideae Cranichideae Goodyerinae 80 (10%) 15
Aulosepalum (accepted species) Orchidoideae Cranichideae Spiranthinae 8 (12%)
Auxopus (accepted species) Epidendroideae Gastrodieae 4 1
Bambuseria (published species) Epidendroideae Podochileae Eriinae 2 (50%)
Barbosella (accepted species) Epidendroideae Epidendreae Pleurothallidinae 19 (74%) 30
Barkeria (accepted species) (Bark.) Epidendroideae Epidendreae Laeliinae 18 (72%) 87 (10%) 15
Bartholina (accepted species) Orchidoideae Orchideae Orchidinae 2 (100%) 2
Basiphyllaea (accepted species) Epidendroideae Epidendreae Bletiinae 7 (29%) 1
Baskervilla (accepted species) Orchidoideae Cranichideae Cranichidinae 12 (8%) 2
Batemannia (accepted species) (Btmna.) Epidendroideae Cymbidieae Zygopetalinae 5 (60%) 17
Beclardia (accepted species) Epidendroideae Vandeae Angraecinae 2 (50%) 5
Beloglottis (accepted species) Orchidoideae Cranichideae Spiranthinae 6 (17%) 5
Benthamia (accepted species) Orchidoideae Orchideae Orchidinae 44 (2%) 12
Benzingia (accepted species) (Bza.) Epidendroideae Cymbidieae Zygopetalinae 9 (33%)
Bhutanthera (accepted species) (Bhu.) Orchidoideae Orchideae Orchidinae 7 7
Bidoupia (accepted species) Orchidoideae Cranichideae Goodyerinae 2
Biermannia (accepted species) Epidendroideae Vandeae Aeridinae 11 (9%) 7
Bifrenaria (accepted species) (Bif.) Epidendroideae Cymbidieae Maxillariinae 21 (67%) 12 (8%) 48
Bipinnula (accepted species) Orchidoideae Chloraeeae 10 (20%) 8
Bletia (accepted species) (Bti.) Epidendroideae Epidendreae Bletiinae 37 (14%) 4 164
Bletilla (accepted species) (Ble.) Epidendroideae Arethuseae Coelogyninae 5 (80%) 29 (7%) 19
Bogoria (accepted species) Epidendroideae Vandeae Aeridinae 4 (50%)
Bolusiella (accepted species) Epidendroideae Vandeae Angraecinae 7 4
Bonatea (accepted species) (Bnt.) Orchidoideae Orchideae Orchidinae 13 (8%) 11 32
Brachionidium (accepted species) Epidendroideae Epidendreae Pleurothallidinae 82 (12%) 9
Brachycorythis (accepted species) Orchidoideae Orchideae Orchidinae 45 (20%) 44
Brachypeza (accepted species) Epidendroideae Vandeae Aeridinae 12 (58%)
Brachystele (accepted species) Orchidoideae Cranichideae Spiranthinae 20 (5%) 20
Bracisepalum (accepted species) Epidendroideae Arethuseae Coelogyninae 2
Braemia (accepted species) Epidendroideae Cymbidieae Stanhopeinae 1 (100%)
Brasolia (published species) 1 22
Brassavola (accepted species) (B.) Epidendroideae Epidendreae Laeliinae 26 (58%) 27 (52%) 37
Brassia (accepted species) (Brs.) Epidendroideae Cymbidieae Oncidiinae 68 (44%) 102 (12%) 45
Bromheadia (accepted species) (Brom.) Epidendroideae Vandeae Adrorhizinae 31 (13%) 8
Broughtonia (accepted species) (Bro.) Epidendroideae Epidendreae Laeliinae 7 (86%) 16 (38%) 16
Brownleea (accepted species) Orchidoideae Diseae Brownleeinae 10 15
Bryobium (accepted species) (Byb.) Epidendroideae Podochileae Eriinae 28 (36%) 5
Buchtienia (accepted species) Orchidoideae Cranichideae Spiranthinae 4 3
Bulbophyllum (accepted species) (Bulb.) Epidendroideae Dendrobieae Dendrobiinae 2248 (33%) 487 (34%) 1064
Bulleyia (accepted species) Epidendroideae Arethuseae Coelogyninae 1
Burnettia (accepted species) Orchidoideae Diurideae Megastylidinae 1
Caladenia (accepted species) (Calda.) Orchidoideae Diurideae Caladeniinae 361 (13%) 321 (1%) 124
Calanthe (accepted species) (Cal.) Epidendroideae Collabieae 231 (17%) 443 (3%) 371
Caleana (accepted species) Orchidoideae Diurideae Drakaeinae 14 (21%) 2
Callostylis (accepted species) (Call.) Epidendroideae Podochileae Eriinae 3 (67%) 4
Calochilus (accepted species) (Clchs.) Orchidoideae Diurideae Thelymitrinae 27 (19%) 2 6
Calopogon (accepted species) (Cpg.) Epidendroideae Arethuseae Arethusinae 7 (71%) 3 19
Caluera (accepted species) Epidendroideae Cymbidieae Oncidiinae 3 (33%)
Calymmanthera (accepted species) Epidendroideae Vandeae Aeridinae 5
Calypso (accepted species) Epidendroideae Calypsoeae 5 (60%) 1 15
Calyptrochilum (accepted species) Epidendroideae Vandeae Angraecinae 3 12
Campanulorchis (accepted species) (Cam.) Epidendroideae Podochileae Eriinae 4 (75%) 4
Campylocentrum (accepted species) Epidendroideae Vandeae Angraecinae 79 (22%) 48
Capanemia (accepted species) Epidendroideae Cymbidieae Oncidiinae 9 (56%) 12
Cardiochilos (accepted species) Epidendroideae Vandeae Angraecinae 1
Catasetum (accepted species) (Ctsm.) Epidendroideae Cymbidieae Catasetinae 187 (56%) 475 (54%) 243
Cattleya (accepted species) (C.) Epidendroideae Epidendreae Laeliinae 130 (86%) 17910 (6%) 1237
Caucaea (accepted species) (Cauc.) Epidendroideae Cymbidieae Oncidiinae 16 (38%) 14
Caularthron (accepted species) (Cau.) Epidendroideae Epidendreae Laeliinae 4 (50%) 4
Centroglossa (accepted species) Epidendroideae Cymbidieae Oncidiinae 5 (40%) 1 4
Centrostigma (accepted species) Orchidoideae Orchideae Orchidinae 3 2
Cephalanthera (accepted species) (Ceph.) Epidendroideae Neottieae 21 (24%) 7 90
Cephalantheropsis (accepted species) Epidendroideae Collabieae 5 (60%) 4
Ceratandra (accepted species) Orchidoideae Diseae Coryciinae 6 6
Ceratocentron (accepted species) (Crtn.) Epidendroideae Vandeae Aeridinae 1 (100%)
Ceratostylis (accepted species) Epidendroideae Podochileae Eriinae 162 (15%) 16
Chamaeanthus (accepted species) Epidendroideae Vandeae Aeridinae 2 (50%) 16
Chamaegastrodia (accepted species) Orchidoideae Cranichideae Goodyerinae 3 4
Chamelophyton (accepted species) Epidendroideae Epidendreae Pleurothallidinae 1
Chamorchis (accepted species) (Chm.) Orchidoideae Orchideae Orchidinae 1 (100%) 2
Changnienia (accepted species) Epidendroideae Calypsoeae 2 (50%)
Chaubardia (accepted species) (Chau.) Epidendroideae Cymbidieae Zygopetalinae 3 (67%) 3
Chaubardiella (accepted species) (Chbl.) Epidendroideae Cymbidieae Zygopetalinae 8 (62%) 3
Chauliodon (accepted species) Epidendroideae Vandeae Angraecinae 1 1
Cheiradenia (accepted species) Epidendroideae Cymbidieae Zygopetalinae 1 1
Cheirostylis (accepted species) Orchidoideae Cranichideae Goodyerinae 62 (10%) 39
Chelonistele (accepted species) Epidendroideae Arethuseae Coelogyninae 16 (25%) 15
Chiloglottis (accepted species) (Chil.) Orchidoideae Diurideae Drakaeinae 26 (35%) 2 (50%) 5
Chiloschista (accepted species) (Chsch.) Epidendroideae Vandeae Aeridinae 22 (59%) 5 7
Chloraea (accepted species) Orchidoideae Chloraeeae 58 (9%) 1 111
Chondrorhyncha (accepted species) (Chdrh.) Epidendroideae Cymbidieae Zygopetalinae 7 (14%) 61
Chondroscaphe (accepted species) (Cds.) Epidendroideae Cymbidieae Zygopetalinae 14 (21%) 3
Chroniochilus (accepted species) Epidendroideae Vandeae Aeridinae 5 (60%) 2
Chrysoglossum (accepted species) Epidendroideae Collabieae 4 (25%) 22
Chysis (accepted species) (Chy.) Epidendroideae Epidendreae Chysinae 12 (58%) 13 (46%) 9
Chytroglossa (accepted species) Epidendroideae Cymbidieae Oncidiinae 3 (67%) 1 2
Cirrhaea (accepted species) (Cra.) Epidendroideae Cymbidieae Stanhopeinae 9 (22%) 17
Cischweinfia (accepted species) (Cisch.) Epidendroideae Cymbidieae Oncidiinae 13 (46%) 8
Claderia (accepted species) Epidendroideae Cymbidieae Cymbidiinae 1 (100%) 1
Cleisocentron (accepted species) (Clctn.) Epidendroideae Vandeae Aeridinae 7 (57%) 2
Cleisomeria (accepted species) Epidendroideae Vandeae Aeridinae 2 (100%)
Cleisostoma (accepted species) (Cleis.) Epidendroideae Vandeae Aeridinae 103 (34%) 2 147
Cleisostomopsis (accepted species) (Cst.) Epidendroideae Vandeae Aeridinae 2 (50%)
Cleistes (accepted species) Vanilloideae Pogonieae 76 (8%) 16
Cleistesiopsis (accepted species) Vanilloideae Pogonieae 3 (67%) 1 1
Clematepistephium (accepted species) Vanilloideae Vanilleae 1
Clowesia (accepted species) (Cl.) Epidendroideae Cymbidieae Catasetinae 7 (100%) 8 (62%)
Coccineorchis (accepted species) (Coc.) Orchidoideae Cranichideae Spiranthinae 7 1
Cochleanthes (accepted species) (Cnths.) Epidendroideae Cymbidieae Zygopetalinae 4 (50%) 19
Codonorchis (accepted species) Orchidoideae Codonorchideae 2 3
Coelia (accepted species) Epidendroideae Epidendreae Coeliinae 5 (60%) 3
Coeliopsis (accepted species) Epidendroideae Cymbidieae Coeliopsidinae 1 (100%)
Coelogyne (accepted species) (Coel.) Epidendroideae Arethuseae Coelogyninae 228 (56%) 109 (27%) 235
Coenoemersa (accepted species) Epidendroideae Epidendreae Laeliinae 3 (33%)
Coilochilus (accepted species) Orchidoideae Diurideae Cryptostylidinae 1
Collabium (accepted species) Epidendroideae Collabieae 15 (20%) 7
Comparettia (accepted species) (Comp.) Epidendroideae Cymbidieae Oncidiinae 83 (18%) 13 (15%) 9
Conchidium (accepted species) (Conc.) Epidendroideae Podochileae Eriinae 14 (50%) 6
Conchograecum (published species) () Epidendroideae Vandeae Angraecinae
Constantia (accepted species) (Const.) Epidendroideae Epidendreae Laeliinae 6 (50%)
Cooktownia (accepted species) Orchidoideae Orchideae Orchidinae 1
Corallorhiza (accepted species) Epidendroideae Calypsoeae 20 (55%) 82
Coryanthes (accepted species) (Crths.) Epidendroideae Cymbidieae Stanhopeinae 68 (41%) 5 (20%) 26
Corybas (accepted species) Orchidoideae Diurideae Acianthinae 150 (13%) 6 17
Corycium (accepted species) Orchidoideae Diseae Coryciinae 13 6
Corymborkis (accepted species) Epidendroideae Tropidieae 8 (25%) 29
Cottonia (accepted species) Epidendroideae Vandeae Aeridinae 1 (100%) 2
Cotylolabium (accepted species) Orchidoideae Cranichideae Spiranthinae 1
Cranichis (accepted species) Orchidoideae Cranichideae Cranichidinae 65 (12%) 56
Cremastra (accepted species) Epidendroideae Calypsoeae 8 (12%) 15
Crepidium (accepted species) Epidendroideae Malaxideae 307 (7%) 45
Cribbia (accepted species) Epidendroideae Vandeae Angraecinae 4
Crossoglossa (accepted species) Epidendroideae Malaxideae 49 (2%) 1
Crossoliparis (accepted species) 1 (100%)
Croton (accepted species) 2
Cryptarrhena (accepted species) Epidendroideae Cymbidieae Zygopetalinae 3 (33%) 6
Cryptocentrum (accepted species) Epidendroideae Cymbidieae Maxillariinae 3 29
Cryptochilus (accepted species) Epidendroideae Podochileae Eriinae 8 (75%) 6
Cryptopus (accepted species) (Crypt.) Epidendroideae Vandeae Angraecinae 4 (25%) 1 1
Cryptopylos (accepted species) Epidendroideae Vandeae Aeridinae 1 (100%)
Cryptostylis (accepted species) Orchidoideae Diurideae Cryptostylidinae 25 (28%) 16
Cuitlauzina (accepted species) (Cu.) Epidendroideae Cymbidieae Oncidiinae 7 (71%) 2
Cyanaeorchis (accepted species) Epidendroideae Cymbidieae Eulophiinae 3
Cyanicula (accepted species) (Cca.) Orchidoideae Diurideae Caladeniinae 2 5 13
Cybebus (accepted species) Orchidoideae Cranichideae Spiranthinae 1
Cyclopogon (accepted species) (Cycl.) Orchidoideae Cranichideae Spiranthinae 91 (10%) 49
Cycnoches (accepted species) (Cyc.) Epidendroideae Cymbidieae Catasetinae 38 (53%) 72 (40%) 25
Cylindrolobus (accepted species) (Cyln.) 76 (20%) 10
Cymbidiella (accepted species) (Cymla.) Epidendroideae Cymbidieae Eulophiinae 3 (100%) 3 3
Cymbidium (accepted species) (Cym.) Epidendroideae Cymbidieae Cymbidiinae 92 (61%) 16654 (3%) 438
Cynorkis (accepted species) (Cyn.) Orchidoideae Orchideae Orchidinae 216 (6%) 5 98
Cypholoron (accepted species) Epidendroideae Cymbidieae Oncidiinae 2 (50%)
Cypripedium (accepted species) (Cyp.) Cypripedioideae 59 (61%) 493 (5%) 475
Cyrtidiorchis (accepted species) Epidendroideae Cymbidieae Maxillariinae 6 6
Cyrtochiloides (accepted species) (Crt.) Epidendroideae Cymbidieae Oncidiinae 3 (100%) 1
Cyrtochilum (accepted species) (Cyr.) Epidendroideae Cymbidieae Oncidiinae 189 (20%) 31 (3%) 85
Cyrtopodium (accepted species) (Cyrt.) Epidendroideae Cymbidieae Cyrtopodiinae 49 (37%) 6 61
Cyrtorchis (accepted species) (Cyrtcs.) Epidendroideae Vandeae Angraecinae 23 (26%) 1 (100%) 23
Cyrtosia (accepted species) Vanilloideae Vanilleae 6 (100%) 5
Cyrtostylis (accepted species) Orchidoideae Diurideae Acianthinae 8 (38%) 4
Cystorchis (accepted species) Orchidoideae Cranichideae Goodyerinae 23 (13%) 5
Dactylorhiza (accepted species) (Dact.) Orchidoideae Orchideae Orchidinae 110 (25%) 165 (2%) 523
Dactylostalix (accepted species) Epidendroideae Calypsoeae 1 (100%) 3
Daiotyla (accepted species) Epidendroideae Cymbidieae Zygopetalinae 4
Damasonium (accepted species) 1 1
Danhatchia (accepted species) (Dnh.) Orchidoideae Cranichideae Goodyerinae 2
Danxiaorchis (accepted species) Epidendroideae Calypsoeae Yoaniinae 2
Decaisnea (accepted species) 2
Deceptor (accepted species) Epidendroideae Vandeae Aeridinae 1 (100%)
Degranvillea (accepted species) Orchidoideae Cranichideae Spiranthinae 1
Deiregyne (accepted species) Orchidoideae Cranichideae Spiranthinae 24 20
Dendrobium (accepted species) (Den.) Epidendroideae Dendrobieae Dendrobiinae 1724 (43%) 13998 (10%) 1484
Dendrochilum (accepted species) Epidendroideae Arethuseae Coelogyninae 336 (22%) 1 82
Dendrophylax (accepted species) (Dlax.) Epidendroideae Vandeae Angraecinae 15 (47%) 3
Devogelia (accepted species) Epidendroideae Collabieae 1
Diaphananthe (accepted species) (Dpthe.) Epidendroideae Vandeae Angraecinae 31 (13%) 62
Diceratostele (accepted species) Epidendroideae Triphoreae Diceratostelinae 1
Dichaea (accepted species) Epidendroideae Cymbidieae Zygopetalinae 125 (18%) 41
Dichromanthus (accepted species) (Dmts.) Orchidoideae Cranichideae Spiranthinae 4 (25%) 3
Dickasonia (accepted species) Epidendroideae Arethuseae Coelogyninae 1
Didymoplexiella (accepted species) Epidendroideae Gastrodieae 7 (14%) 2
Didymoplexiopsis (accepted species) Epidendroideae Gastrodieae 1
Didymoplexis (accepted species) Epidendroideae Gastrodieae 24 (4%) 17
Dienia (accepted species) Epidendroideae Malaxideae 6 (33%) 14
Diglyphosa (accepted species) Epidendroideae Collabieae 3 (33%) 3
Dilochia (accepted species) Epidendroideae Arethuseae Coelogyninae 10 (20%) 2
Dilochiopsis (accepted species) (Dlc.) Epidendroideae Podochileae Eriinae 1
Dilomilis (accepted species) Epidendroideae Epidendreae Pleurothallidinae 5 (20%) 3
Dimerandra (accepted species) (Dmd.) Epidendroideae Epidendreae Laeliinae 7 (71%) 7
Dimorphorchis (accepted species) Epidendroideae Vandeae Aeridinae 12 (58%) 5
Dinema (accepted species) (Din.) Epidendroideae Epidendreae Laeliinae 1 (100%) 2
Dinklageella (accepted species) Epidendroideae Vandeae Angraecinae 4 1
Diodonopsis (accepted species) (Ddo.) Epidendroideae Epidendreae Pleurothallidinae 6 (50%)
Diplocentrum (accepted species) Epidendroideae Vandeae Aeridinae 2 (50%) 1
Diplomeris (accepted species) Orchidoideae Orchideae Orchidinae 3 (67%) 2
Diploprora (accepted species) (Dpra.) Epidendroideae Vandeae Aeridinae 2 (100%) 4
Dipodium (accepted species) Epidendroideae Cymbidieae Cymbidiinae 45 (22%) 1 (100%) 13
Disa (accepted species) Orchidoideae Diseae Disinae 216 (6%) 461 (5%) 140
Discyphus (accepted species) Orchidoideae Cranichideae Spiranthinae 3
Disperis (accepted species) Orchidoideae Diseae Coryciinae 101 (2%) 1 45
Distylodon (accepted species) Epidendroideae Vandeae Angraecinae 2
Diuris (accepted species) Orchidoideae Diurideae Diuridinae 99 (13%) 60 (7%) 49
Domingoa (accepted species) (Dga.) Epidendroideae Epidendreae Laeliinae 4 (100%) 3 3
Dossinia (accepted species) (Doss.) Orchidoideae Cranichideae Goodyerinae 2 (50%) 4
Dracomonticola (accepted species) Orchidoideae Orchideae Orchidinae 1
Draconanthes (accepted species) Epidendroideae Epidendreae Pleurothallidinae 2 (50%)
Dracula (accepted species) (Drac.) Epidendroideae Epidendreae Pleurothallidinae 134 (92%) 48 (35%) 28
Drakaea (accepted species) Orchidoideae Diurideae Drakaeinae 10 (10%) 3 6
Dresslerella (accepted species) Epidendroideae Epidendreae Pleurothallidinae 14 (64%)
Dressleria (accepted species) (Dre.) Epidendroideae Cymbidieae Catasetinae 13 (15%) 1
Dryadella (accepted species) Epidendroideae Epidendreae Pleurothallidinae 58 (41%) 9
Dryadorchis (accepted species) Epidendroideae Vandeae Aeridinae 5 (20%)
Drymoanthus (accepted species) (Dry.) Epidendroideae Vandeae Aeridinae 4 (25%)
Duckeella (accepted species) Vanilloideae Pogonieae 3 1
Dunstervillea (accepted species) Epidendroideae Cymbidieae Oncidiinae 1
Dyakia (accepted species) (Dy.) Epidendroideae Vandeae Aeridinae 1 (100%)
Earina (accepted species) Epidendroideae Vandeae Agrostophyllinae 7 (43%) 8
Echinorhyncha (accepted species) Epidendroideae Cymbidieae Zygopetalinae 5
Echinosepala (accepted species) Epidendroideae Epidendreae Pleurothallidinae 14 (21%)
Eclecticus (accepted species) Epidendroideae Vandeae Aeridinae 1 (100%)
Eggelingia (accepted species) Epidendroideae Vandeae Angraecinae 3
Eleorchis (accepted species) (Elo.) Epidendroideae Arethuseae Arethusinae 1 2
Elleanthus (accepted species) Epidendroideae Sobralieae 127 (14%) 39
Eloyella (accepted species) Epidendroideae Cymbidieae Oncidiinae 10 (20%)
Eltroplectris (accepted species) (Etp.) Orchidoideae Cranichideae Spiranthinae 15 (27%) 5
Elythranthera (accepted species) (Elth.) Orchidoideae Diurideae Caladeniinae 2 1 3
Embreea (accepted species) (Emb.) Epidendroideae Cymbidieae Stanhopeinae 2 (100%) 1
Encyclia (accepted species) (E.) Epidendroideae Epidendreae Laeliinae 176 (53%) 306 (20%) 287
Entomophobia (accepted species) Epidendroideae Arethuseae Coelogyninae 1
Ephippianthus (accepted species) Epidendroideae Calypsoeae 2 1
Epiblastus (accepted species) Epidendroideae Podochileae Eriinae 25 3
Epiblema (accepted species) Orchidoideae Diurideae Thelymitrinae 1
Epidendrum (accepted species) (Epi.) Epidendroideae Epidendreae Laeliinae 1680 (16%) 642 (8%) 1270
Epipactis (accepted species) (Epcts.) Epidendroideae Neottieae 93 (16%) 46 (4%) 569
Epipogium (accepted species) (Epgm.) Epidendroideae Nervilieae Epipogiinae 5 (40%) 19
Epistephium (accepted species) Vanilloideae Vanilleae 28 (11%) 15
Erasanthe (accepted species) Epidendroideae Vandeae Angraecinae 3 (33%)
Eria (accepted species) Epidendroideae Podochileae Eriinae 72 (15%) 788
Eriaxis (accepted species) Vanilloideae Vanilleae 1
Ericksonella (accepted species) Orchidoideae Diurideae Caladeniinae 1 1
Eriochilus (accepted species) Orchidoideae Diurideae Caladeniinae 20 (20%) 9
Eriodes (accepted species) Epidendroideae Collabieae 1 (100%)
Eriopsis (accepted species) (Ess.) Epidendroideae Cymbidieae Eriopsidinae 5 (40%) 8
Erycina (accepted species) (Ercn.) Epidendroideae Cymbidieae Oncidiinae 7 (71%) 5
Erythrodes (accepted species) Orchidoideae Cranichideae Goodyerinae 28 (7%) 148
Erythrorchis (accepted species) Vanilloideae Vanilleae 2 (50%) 5
Eulophia (accepted species) (Euph.) Epidendroideae Cymbidieae Eulophiinae 218 (10%) 11 (9%) 496
Eulophiella (accepted species) (Eul.) Epidendroideae Cymbidieae Eulophiinae 6 (33%) 2 4
Euryblema (accepted species) Epidendroideae Cymbidieae Zygopetalinae 2 (50%)
Eurycentrum (accepted species) Orchidoideae Cranichideae Goodyerinae 4 4
Eurychone (accepted species) (Echn.) Epidendroideae Vandeae Angraecinae 2 (100%) 1
Eurystyles (accepted species) Orchidoideae Cranichideae Spiranthinae 21 (10%) 3
Evotella (accepted species) Orchidoideae Diseae Coryciinae 2
Fernandezia (accepted species) (F.) Epidendroideae Cymbidieae Oncidiinae 58 (14%) 18
Frondaria (accepted species) Epidendroideae Epidendreae Pleurothallidinae 1 (100%)
Fuertesiella (accepted species) Orchidoideae Cranichideae Cranichidinae 1 1
Funkiella (accepted species) Orchidoideae Cranichideae Spiranthinae 7 10
Galeandra (accepted species) (Gal.) Epidendroideae Cymbidieae Catasetinae 41 (46%) 24 27
Galearis (accepted species) Orchidoideae Orchideae Orchidinae 10 (40%) 13
Galeoglossum (accepted species) Orchidoideae Cranichideae Cranichidinae 3 1
Galeola (accepted species) Vanilloideae Vanilleae 4 33
Galeottia (accepted species) (Glta.) Epidendroideae Cymbidieae Zygopetalinae 12 (33%) 1 1
Galeottiella (accepted species) Orchidoideae Cranichideae Galeottiellinae 2 8
Gastrochilus (accepted species) (Gchls.) Epidendroideae Vandeae Aeridinae 72 (33%) 2 99
Gastrodia (accepted species) Epidendroideae Gastrodieae 91 (3%) 1 35
Gastrorchis (accepted species) (Gs.) Epidendroideae Collabieae 14 (50%) 8 6
Gavilea (accepted species) (Gav.) Orchidoideae Chloraeeae 17 (6%) 7
Geesinkorchis (accepted species) Epidendroideae Arethuseae Coelogyninae 4 (50%)
Gennaria (accepted species) Orchidoideae Orchideae Orchidinae 2 (50%)
Genoplesium (accepted species) Orchidoideae Diurideae Prasophyllinae 54 (4%) 1
Genyorchis (accepted species) Epidendroideae Dendrobieae Dendrobiinae 7 3
Geodorum (accepted species) Epidendroideae Cymbidieae Eulophiinae 9 (44%) 1 29
Glomera (accepted species) Arethuseae Coelogyninae 160 (5%) 31
Glossodia (accepted species) (Gloss.) Orchidoideae Diurideae Caladeniinae 1 8
Gomesa (accepted species) (Gom.) Epidendroideae Cymbidieae Oncidiinae 134 (44%) 377 (3%) 46
Gomphichis (accepted species) Orchidoideae Cranichideae Cranichidinae 35 (14%) 10
Gonatostylis (accepted species) Orchidoideae Cranichideae Goodyerinae 2
Gongora (accepted species) (Gga.) Epidendroideae Cymbidieae Stanhopeinae 70 (61%) 42 (5%) 57
Goodyera (accepted species) (G.) Orchidoideae Cranichideae Goodyerinae 106 (20%) 6 147
Govenia (accepted species) Epidendroideae Calypsoeae 28 (18%) 18
Grammangis (accepted species) (Gra.) Epidendroideae Cymbidieae Eulophiinae 2 (50%) 1 (100%) 6
Grammatophyllum (accepted species) (Gram.) Epidendroideae Cymbidieae Cymbidiinae 15 (80%) 22 (36%) 25
Grandiphyllum (accepted species) (Gdp.) Epidendroideae Cymbidieae Oncidiinae 8 (50%) 5
Graphorkis (accepted species) (Grks.) Epidendroideae Cymbidieae Cymbidiinae 7 (29%) 104
Gravendeelia (published species) Epidendroideae Epidendreae Pleurothallidinae 1 (100%)
Greenwoodiella (accepted species) Orchidoideae Cranichideae Spiranthinae 4
Grobya (accepted species) Epidendroideae Cymbidieae Catasetinae 5 (60%) 1
Grosourdya (accepted species) Epidendroideae Vandeae Aeridinae 27 (26%) 10
Guanchezia (accepted species) Epidendroideae Cymbidieae Maxillariinae 1
Guarianthe (accepted species) (Gur.) Epidendroideae Epidendreae Laeliinae 4 (100%) 11 (27%) 7
Gunnarella (accepted species) Epidendroideae Vandeae Aeridinae 10 1
Gymnadenia (accepted species) (Gym.) Orchidoideae Orchideae Orchidinae 29 (21%) 23 249
Gynoglottis (accepted species) Epidendroideae Arethuseae Coelogyninae 1 1
Habenaria (accepted species) (Hab.) Orchidoideae Orchideae Orchidinae 953 (7%) 41 (51%) 1075
Hagsatera (accepted species) (Hag.) Epidendroideae Epidendreae Laeliinae 2 (50%)
Halleorchis (accepted species) (Hlo.) Orchidoideae Cranichideae Goodyerinae 1
Hammarbya (accepted species) Epidendroideae Malaxideae 1 (100%) 1
Hancockia (accepted species) Epidendroideae Collabieae 1 1
Hapalorchis (accepted species) Orchidoideae Cranichideae Spiranthinae 13 (8%) 6
Hederorkis (accepted species) Epidendroideae Vandeae Polystachyinae 2 2
Helleriella (accepted species) Epidendroideae Epidendreae Ponerinae 2 1
Helonoma (accepted species) Orchidoideae Cranichideae Spiranthinae 4
Hemipilia (accepted species) Orchidoideae Orchideae Orchidinae 12 (8%) 1 21
Herminium (accepted species) (H.) Orchidoideae Orchideae Orchidinae 52 (19%) 55
Herpysma (accepted species) Orchidoideae Cranichideae Goodyerinae 1 (100%) 3
Hetaeria (accepted species) Orchidoideae Cranichideae Goodyerinae 31 (3%) 80
Hexalectris (accepted species) Epidendroideae Epidendreae Bletiinae 10 (50%) 11
Hibiscorchis (published species) 2 2
Himantoglossum (accepted species) (Him.) Orchidoideae Orchideae Orchidinae 18 (17%) 3 67
Hintonella (accepted species) Epidendroideae Cymbidieae Oncidiinae 1 (100%)
Hippeophyllum (accepted species) Epidendroideae Malaxideae 10 (20%) 4
Hoehneella (accepted species) Epidendroideae Cymbidieae Zygopetalinae 2 1
Hofmeisterella (accepted species) (Hf.) Epidendroideae Cymbidieae Oncidiinae 2 (50%) 1
Holcoglossum (accepted species) (Holc.) Epidendroideae Vandeae Aeridinae 22 (68%) 7 (29%) 7
Holothrix (accepted species) Orchidoideae Orchideae Orchidinae 46 (7%) 36
Homalopetalum (accepted species) (Hom.) Epidendroideae Epidendreae Laeliinae 9 (22%) 3
Horichia (accepted species) Epidendroideae Cymbidieae Stanhopeinae 1
Horvatia (accepted species) Epidendroideae Cymbidieae Maxillariinae 1
Houlletia (accepted species) (Hlt.) Epidendroideae Cymbidieae Stanhopeinae 10 (50%) 19
Hsenhsua (accepted species) Orchidoideae Orchideae Orchidinae 1
Huntleya (accepted species) (Hya.) Epidendroideae Cymbidieae Zygopetalinae 14 (50%) 13
Huttonaea (accepted species) Orchidoideae Diseae Huttonaeinae 5 (20%) 2
Hylophila (accepted species) Orchidoideae Cranichideae Goodyerinae 5 3
Hymenorchis (accepted species) Epidendroideae Vandeae Aeridinae 13 (15%)
Imerinaea (accepted species) Epidendroideae Cymbidieae Eulophiinae 1
Ionopsis (accepted species) (Inps.) Epidendroideae Cymbidieae Oncidiinae 7 (29%) 22
Ipsea (accepted species) (Ip.) Epidendroideae Collabieae 3 (33%) 2
Iris (accepted species) 1
Isabelia (accepted species) (Isa.) Epidendroideae Epidendreae Laeliinae 3 (100%) 1 3
Ischnogyne (accepted species) Epidendroideae Arethuseae Coelogyninae 1
Isochilus (accepted species) Epidendroideae Epidendreae Ponerinae 14 (36%) 25
Isotria (accepted species) Vanilloideae Pogonieae 2 (100%) 1
Ixyophora (accepted species) Epidendroideae Cymbidieae Zygopetalinae 6 (33%)
Jacquiniella (accepted species) (Ja.) Epidendroideae Epidendreae Laeliinae 12 (33%) 2
Jejewoodia (accepted species) Epidendroideae Vandeae Aeridinae 6
Jumellea (accepted species) (Jum.) Epidendroideae Vandeae Angraecinae 63 (30%) 7 (29%) 32
Kalimantanorchis (accepted species) Epidendroideae Tropidieae 1
Kefersteinia (accepted species) (Kefst.) Epidendroideae Cymbidieae Zygopetalinae 63 (37%) 1 14
Kegeliella (accepted species) Epidendroideae Cymbidieae Stanhopeinae 4 (25%)
Kionophyton (accepted species) (Kin.) Orchidoideae Cranichideae Spiranthinae 3 2
Kipandiorchis (accepted species) Epidendroideae Vandeae Aeridinae 2
Koellensteinia (accepted species) Epidendroideae Cymbidieae Zygopetalinae 11 (36%) 12
Kraenzlinella (accepted species) (Kz.) Epidendroideae Epidendreae Pleurothallidinae 17 17
Kreodanthus (accepted species) Orchidoideae Cranichideae Goodyerinae 13 3
Kuhlhasseltia (accepted species) Orchidoideae Cranichideae Goodyerinae 3 12
Kylicanthe (published species) () Epidendroideae Vandeae Angraecinae 7
Lacaena (accepted species) Epidendroideae Cymbidieae Stanhopeinae 2 (100%) 4
Laelia (accepted species) (L.) Epidendroideae Epidendreae Laeliinae 27 (78%) 90 (18%) 279
Lankesterella (accepted species) Orchidoideae Cranichideae Spiranthinae 11 (36%) 6
Lecanorchis (accepted species) Vanilloideae Vanilleae 27 (15%) 27
Lemurella (accepted species) Epidendroideae Vandeae Angraecinae 4 (25%) 3
Lemurorchis (accepted species) Epidendroideae Vandeae Angraecinae 1 (100%)
Leochilus (accepted species) (Lchs.) Epidendroideae Cymbidieae Oncidiinae 13 (31%) 1 (100%) 21
Lepanthes (accepted species) (Lths.) Epidendroideae Epidendreae Pleurothallidinae 1140 (40%) 34 (59%) 227
Lepanthopsis (accepted species) (Lpths.) Epidendroideae Epidendreae Pleurothallidinae 48 (31%) 3 (100%) 12
Lepidogyne (accepted species) Orchidoideae Cranichideae Goodyerinae 1 2
Leporella (accepted species) Orchidoideae Diurideae Megastylidinae 1 (100%)
Leptoceras (accepted species) Orchidoideae Diurideae Caladeniinae 1 6
Leptotes (accepted species) (Lpt.) Epidendroideae Epidendreae Laeliinae 10 (80%) 5 7
Limodorum (accepted species) Epidendroideae Neottieae 10 (10%) 1 166
Liparis (accepted species) Epidendroideae Malaxideae 460 (11%) 1 345
Listrostachys (accepted species) Epidendroideae Vandeae Angraecinae 1 103
Lockhartia (accepted species) (Lhta.) Epidendroideae Cymbidieae Oncidiinae 34 (38%) 2 25
Lockia (accepted species) Epidendroideae Vandeae Aeridinae 1
Loefgrenianthus (accepted species) (Lts.) Epidendroideae Epidendreae Laeliinae 1 (100%)
Ludisia (accepted species) (Lus.) Orchidoideae Cranichideae Goodyerinae 2 (50%) 1 6
Lueckelia (accepted species) Epidendroideae Cymbidieae Stanhopeinae 1
Lueddemannia (accepted species) Epidendroideae Cymbidieae Stanhopeinae 3 (67%) 5
Luisia (accepted species) (Lsa.) Epidendroideae Vandeae Aeridinae 45 (51%) 41
Lycaste (accepted species) (Lyc.) Epidendroideae Cymbidieae Maxillariinae 38 (66%) 692 (12%) 177
Lycomormium (accepted species) Epidendroideae Cymbidieae Coeliopsidinae 5 (40%) 4
Lyperanthus (accepted species) Orchidoideae Diurideae Megastylidinae 2 (100%) 22
Lyroglossa (accepted species) Orchidoideae Cranichideae Spiranthinae 2 7
Macodes (accepted species) (Mac.) Orchidoideae Cranichideae Goodyerinae 12 (25%) 14
Macradenia (accepted species) (Mcdn.) Epidendroideae Cymbidieae Oncidiinae 13 (31%) 10
Macroclinium (accepted species) Epidendroideae Cymbidieae Oncidiinae 48 (31%) 1
Macropodanthus (accepted species) (Mpt.) Epidendroideae Vandeae Aeridinae 9 (44%) 1
Macrostepis (published species) ()
Malaxis (accepted species) Epidendroideae Malaxideae 179 (8%) 535
Manniella (accepted species) Orchidoideae Cranichideae Mannielinae 2 3
Margelliantha (accepted species) Epidendroideae Vandeae Angraecinae 6 (33%)
Masdevallia (accepted species) (Masd.) Epidendroideae Epidendreae Pleurothallidinae 648 (49%) 1467 (10%) 458
Maxillaria (accepted species) (Max.) Epidendroideae Cymbidieae Maxillariinae 663 (29%) 26 (12%) 441
Mediocalcar (accepted species) Epidendroideae Podochileae Eriinae 23 (30%) 1 43
Megalorchis (accepted species) Orchidoideae Orchideae Orchidinae 1
Megastylis (accepted species) Orchidoideae Diurideae Megastylidinae 6 2
Meiracyllium (accepted species) (Mrclm.) Epidendroideae Epidendreae Laeliinae 2 (50%) 1 2
Mesadenella (accepted species) Orchidoideae Cranichideae Spiranthinae 9 (11%) 3
Mesadenus (accepted species) Orchidoideae Cranichideae Spiranthinae 6 (17%) 4
Mexipedium (accepted species) Cypripedioideae 1 (100%)
Microchilus (accepted species) (Mcr.) Orchidoideae Cranichideae Goodyerinae 172 (3%) 19
Microcoelia (accepted species) Epidendroideae Vandeae Angraecinae 36 (22%) 12
Microepidendrum (accepted species) (Mpd.) Epidendroideae Epidendreae Laeliinae 1
Micropera (accepted species) (Micr.) Epidendroideae Vandeae Aeridinae 22 (36%) 5
Microsaccus (accepted species) Epidendroideae Vandeae Aeridinae 12 (42%) 3
Microthelys (accepted species) (Mty.) Orchidoideae Cranichideae Spiranthinae 7 1
Microtis (accepted species) Orchidoideae Diurideae Prasophyllinae 24 (25%) 2 27
Miltonia (accepted species) (Milt.) Epidendroideae Cymbidieae Oncidiinae 12 (83%) 204 (20%) 72
Miltoniopsis (accepted species) (Mps.) Epidendroideae Cymbidieae Oncidiinae 5 (100%) 1859 (3%) 19
Mobilabium (accepted species) Epidendroideae Vandeae Aeridinae 1
Monophyllorchis (accepted species) Epidendroideae Triphoreae Triphorinae 4 (25%) 2
Mormodes (accepted species) (Morm.) Epidendroideae Cymbidieae Catasetinae 90 (67%) 36 (28%) 35
Mycaranthes (accepted species) (Mrth.) Epidendroideae Podochileae Eriinae 37 (19%) 8
Myoxanthus (accepted species) (My.) Epidendroideae Epidendreae Pleurothallidinae 49 (39%) 21
Myrmechis (accepted species) Orchidoideae Cranichideae Goodyerinae 12 (17%) 9
Myrmecophila (accepted species) (Mcp.) Epidendroideae Epidendreae Laeliinae 13 (77%) 13 (38%) 4
Myrosmodes (accepted species) Orchidoideae Cranichideae Cranichidinae 12 5
Mystacidium (accepted species) (Mycdm.) Epidendroideae Vandeae Angraecinae 11 (27%) 3 (67%) 101
Nabaluia (accepted species) Epidendroideae Arethuseae Coelogyninae 3 (100%)
Nemaconia (accepted species) Epidendroideae Epidendreae Ponerinae 6 (33%) 1
Neobathiea (accepted species) (Nbth.) Epidendroideae Vandeae Angraecinae 8 (38%) 4
Neobolusia (accepted species) (Nbsa.) Orchidoideae Orchideae Orchidinae 6 1
Neocogniauxia (accepted species) Epidendroideae Epidendreae Pleurothallidinae 2 (50%)
Neogardneria (accepted species) (Ngda.) Epidendroideae Cymbidieae Zygopetalinae 1 (100%) 1
Neogyna (accepted species) Epidendroideae Arethuseae Coelogyninae 1 (100%) 2
Neomoorea (accepted species) Epidendroideae Cymbidieae Maxillariinae 1 (100%) 1
Neotinea (accepted species) (Nt.) Orchidoideae Orchideae Orchidinae 8 (75%) 3 (67%) 26
Neottia (accepted species) Epidendroideae Neottieae 76 (12%) 1 137
Nephelaphyllum (accepted species) Epidendroideae Collabieae 17 (24%) 11
Nephrangis (accepted species) Epidendroideae Vandeae Angraecinae 2 1
Nervilia (accepted species) Epidendroideae Nervilieae Nerviliinae 83 (16%) 57
Neuwiedia (accepted species) Apostasioideae 12 (25%) 11
Nidema (accepted species) (Nid.) Epidendroideae Epidendreae Laeliinae 2 (100%) 4
Nohawilliamsia (accepted species) Epidendroideae Cymbidieae Oncidiinae 1 (100%)
Notheria (accepted species) Epidendroideae Podochileae Eriinae 1 (100%)
Nothostele (accepted species) Orchidoideae Cranichideae Cranichidinae 2
Notylia (accepted species) (Ntl.) Epidendroideae Cymbidieae Oncidiinae 59 (19%) 50
Notyliopsis (accepted species) Epidendroideae Cymbidieae Oncidiinae 1 (100%)
Oberonia (accepted species) Epidendroideae Malaxideae 319 (13%) 1 159
Oberonioides (accepted species) Epidendroideae Malaxideae 2 1
Octarrhena (accepted species) Epidendroideae Podochileae Thelasiinae 52 (2%) 23
Octomeria (accepted species) Epidendroideae Epidendreae Pleurothallidinae 169 (16%) 75
Odisha (accepted species) Orchidoideae Orchideae Orchidinae 1 1
Odontochilus (accepted species) (Odt.) Orchidoideae Cranichideae Goodyerinae 57 (12%) 1 25
Odontorrhynchus (accepted species) Orchidoideae Cranichideae Spiranthinae 6 3
Oeceoclades (accepted species) (Oecl.) Epidendroideae Cymbidieae Eulophiinae 40 (28%) 4 (25%) 20
Oeonia (accepted species) Epidendroideae Vandeae Angraecinae 7 (29%) 15
Oeoniella (accepted species) (Oenla.) Epidendroideae Vandeae Angraecinae 2 (50%) 1
Oestlundia (accepted species) (Ost.) Epidendroideae Epidendreae Laeliinae 4 (25%) 1
Oligophyton (accepted species) Orchidoideae Orchideae Orchidinae 1
Oliveriana (accepted species) Epidendroideae Cymbidieae Oncidiinae 13 (15%)
Omoea (accepted species) Epidendroideae Vandeae Aeridinae 2 (100%)
Oncidium (accepted species) (Onc.) Epidendroideae Cymbidieae Oncidiinae 344 (29%) 7558 (2%) 1226
Ophioglossella (accepted species) Epidendroideae Vandeae Aeridinae 1
Ophrys (accepted species) (Oph.) Orchidoideae Orchideae Orchidinae 128 (42%) 368 (9%) 1717
Opilionanthe (published species) Epidendroideae Epidendreae Pleurothallidinae 1 (100%)
Orchipedum (accepted species) Orchidoideae Cranichideae Goodyerinae 3
Orchis (accepted species) Orchidoideae Orchideae Orchidinae 51 (37%) 112 (9%) 1940
Oreorchis (accepted species) (Ore.) Epidendroideae Calypsoeae 17 (47%) 24
Orestias (accepted species) Epidendroideae Malaxideae 4 1
Orleanesia (accepted species) (Orle.) Epidendroideae Epidendreae Laeliinae 6 (17%) 4
Ornithocephalus (accepted species) (Orcp.) Epidendroideae Cymbidieae Oncidiinae 55 (22%) 1 33
Ornithoglossum (accepted species) 1 1
Orthoceras (accepted species) Orchidoideae Diurideae Diuridinae 2 (50%) 4
Ossiculum (accepted species) Epidendroideae Vandeae Angraecinae 1