| Aa Rchb. f. | | a | | Aa Rchb. f. | | Orchidaceae |
| Acraea Lindl. | Pterichis Lindl. | | | Acraea Lindl. | Pterichis Lindl. | Orchidaceae |
| Adenostylis Blume | Zeuxine Lindl. | | | Adenostylis Blume | Zeuxine Lindl. | Orchidaceae |
| Adnula Raf. | Pelexia Poit. ex Lindl. | | | Adnula Raf. | Pelexia Poit. ex Lindl. | Orchidaceae |
| Aenhenrya Gopalan | | a | | Aenhenrya Gopalan | | Orchidaceae |
| Aetheria Blume ex Endl. | Stenorrhynchos Rich. ex Spreng. | | | Aetheria Blume ex Endl. | Stenorrhynchos Rich. ex Spreng. | Orchidaceae |
| Allochilus Gagnep. | Goodyera R. Br. | | | Allochilus Gagnep. | Goodyera R. Br. | Orchidaceae |
| Altensteinia Kunth | | a | | Altensteinia Kunth | | Orchidaceae |
| Androchilus Liebm. ex Hartm. | Ponthieva R. Br. | | | Androchilus Liebm. ex Hartm. | Ponthieva R. Br. | Orchidaceae |
| Anectochilus Blume, orth. var. | Anoectochilus Blume | | | Anectochilus Blume, orth. var. | Anoectochilus Blume | Orchidaceae |
| Anoectochilus Blume | | a | | Anoectochilus Blume | | Orchidaceae |
| Aracamunia Carnevali & I. Ramírez | | a | | Aracamunia Carnevali & I. Ramírez | | Orchidaceae |
| Argyrorchis Blume | Macodes (Blume) Lindl. | | | Argyrorchis Blume | Macodes (Blume) Lindl. | Orchidaceae |
| Arisanorchis Hayata | Cheirostylis Blume | | | Arisanorchis Hayata | Cheirostylis Blume | Orchidaceae |
| Aristotelea Lour. | Spiranthes Rich. | | | Aristotelea Lour. | Spiranthes Rich. | Orchidaceae |
| Aspidogyne Garay | | a | | Aspidogyne Garay | | Orchidaceae |
| Aulosepalum Garay | | a | | Aulosepalum Garay | | Orchidaceae |
| Baskervilla Lindl. | | a | | Baskervilla Lindl. | | Orchidaceae |
| Bathiorchis Bosser & P. J. Cribb | Cheirostylis Blume | | | Bathiorchis Bosser & P. J. Cribb | Cheirostylis Blume | Orchidaceae |
| Beadlea Small | Cyclopogon C. Presl | | | Beadlea Small | Cyclopogon C. Presl | Orchidaceae |
| Beloglottis Schltr. | | a | | Beloglottis Schltr. | | Orchidaceae |
| Brachystele Schltr. | | a | | Brachystele Schltr. | | Orchidaceae |
| Buchtienia Schltr. | | a | | Buchtienia Schltr. | | Orchidaceae |
| Bunochilus D. L. Jones & M. A. Clem. | | a | | Bunochilus D. L. Jones & M. A. Clem. | | Orchidaceae |
| Burnsbaloghia Szlach. | Deiregyne Schltr. | | | Burnsbaloghia Szlach. | Deiregyne Schltr. | Orchidaceae |
| Calorchis Barb. Rodr. | Ponthieva R. Br. | | | Calorchis Barb. Rodr. | Ponthieva R. Br. | Orchidaceae |
| Centrogenium Schltr. | Eltroplectris Raf. | | | Centrogenium Schltr. | Eltroplectris Raf. | Orchidaceae |
| Cerochilus Lindl. | Hetaeria Blume | | | Cerochilus Lindl. | Hetaeria Blume | Orchidaceae |
| Cionisaccus Breda | Goodyera R. Br. | | | Cionisaccus Breda | Goodyera R. Br. | Orchidaceae |
| Cladobium Schltr. | Stenorrhynchos Rich. ex Spreng. | | | Cladobium Schltr. | Stenorrhynchos Rich. ex Spreng. | Orchidaceae |
| Coccineorchis Schltr. | | a | | Coccineorchis Schltr. | | Orchidaceae |
| Cocleorchis Szlach. | Cyclopogon C. Presl | | | Cocleorchis Szlach. | Cyclopogon C. Presl | Orchidaceae |
| Cogniauxiocharis (Schltr.) Hoehne | Stenorrhynchos Rich. ex Spreng. | | | Cogniauxiocharis (Schltr.) Hoehne | Stenorrhynchos Rich. ex Spreng. | Orchidaceae |
| Collea Lindl. | Pelexia Poit. ex Lindl. | | | Collea Lindl. | Pelexia Poit. ex Lindl. | Orchidaceae |
| Cordylestylis Falc. | Goodyera R. Br. | | | Cordylestylis Falc. | Goodyera R. Br. | Orchidaceae |
| Cotylolabium Garay | | a | | Cotylolabium Garay | | Orchidaceae |
| Crangonorchis D. L. Jones & M. A. Clem. | | a | | Crangonorchis D. L. Jones & M. A. Clem. | | Orchidaceae |
| Cranichis Sw. | | a | | Cranichis Sw. | | Orchidaceae |
| Cutsis Burns-Bal. et al. | Dichromanthus Garay | | | Cutsis Burns-Bal. et al. | Dichromanthus Garay | Orchidaceae |
| Cybebus Garay | | a | | Cybebus Garay | | Orchidaceae |
| Cyclopogon C. Presl | | a | | Cyclopogon C. Presl | | Orchidaceae |
| Cystochilum Barb. Rodr. | Cranichis Sw. | | | Cystochilum Barb. Rodr. | Cranichis Sw. | Orchidaceae |
| Cystopus Blume | Odontochilus Blume | | | Cystopus Blume | Odontochilus Blume | Orchidaceae |
| Cystorchis Blume | | a | | Cystorchis Blume | | Orchidaceae |
| Danhatchia Garay & Christenson | | a | | Danhatchia Garay & Christenson | | Orchidaceae |
| Decaisnea Brongn. | Prescottia Lindl. | | | Decaisnea Brongn. | Prescottia Lindl. | Orchidaceae |
| Degranvillea Determann | | a | | Degranvillea Determann | | Orchidaceae |
| Deiregyne Schltr. | | a | | Deiregyne Schltr. | | Orchidaceae |
| Deiregynopsis Rauschert | Aulosepalum Garay | | | Deiregynopsis Rauschert | Aulosepalum Garay | Orchidaceae |
| Dicerostylis Blume | Hylophila Lindl. | | | Dicerostylis Blume | Hylophila Lindl. | Orchidaceae |
| Dichromanthus Garay | | a | | Dichromanthus Garay | | Orchidaceae |
| Dikylikostigma Kraenzl. | Discyphus Schltr. | | | Dikylikostigma Kraenzl. | Discyphus Schltr. | Orchidaceae |
| Diplodium Sw. | Pterostylis R. Br. | | | Diplodium Sw. | Pterostylis R. Br. | Orchidaceae |
| Discyphus Schltr. | | a | | Discyphus Schltr. | | Orchidaceae |
| Dithyridanthus Garay | Deiregyne Schltr. | | | Dithyridanthus Garay | Deiregyne Schltr. | Orchidaceae |
| Dossinia C. Morren | | a | | Dossinia C. Morren | | Orchidaceae |
| Dothilis Raf. | Spiranthes Rich. | | | Dothilis Raf. | Spiranthes Rich. | Orchidaceae |
| Ecuadoria Dodson | Microthelys Garay | | | Ecuadoria Dodson | Microthelys Garay | Orchidaceae |
| Elasmatium Dulac | Goodyera R. Br. | | | Elasmatium Dulac | Goodyera R. Br. | Orchidaceae |
| Eltroplectris Raf. | | a | | Eltroplectris Raf. | | Orchidaceae |
| Eremorchis D. L. Jones & M. A. Clem. | | a | | Eremorchis D. L. Jones & M. A. Clem. | | Orchidaceae |
| Erythrodes Blume | | a | | Erythrodes Blume | | Orchidaceae |
| Espinhassoa Salazar & J. A. N. Bat. | | a | | Espinhassoa Salazar & J. A. N. Bat. | | Orchidaceae |
| Etaeria Blume, orth. var. | Hetaeria Blume | | | Etaeria Blume, orth. var. | Hetaeria Blume | Orchidaceae |
| Eucosia Blume | Goodyera R. Br. | | | Eucosia Blume | Goodyera R. Br. | Orchidaceae |
| Eurycentrum Schltr. | | a | | Eurycentrum Schltr. | | Orchidaceae |
| Eurystyles Wawra | | a | | Eurystyles Wawra | | Orchidaceae |
| Evrardia Gagnep. | Odontochilus Blume | | | Evrardia Gagnep. | Odontochilus Blume | Orchidaceae |
| Evrardiana Aver. | Odontochilus Blume | | | Evrardiana Aver. | Odontochilus Blume | Orchidaceae |
| Evrardianthe Rauschert | Odontochilus Blume | | | Evrardianthe Rauschert | Odontochilus Blume | Orchidaceae |
| Exalaria Garay & G. A. Romero | | a | | Exalaria Garay & G. A. Romero | | Orchidaceae |
| Fuertesiella Schltr. | | a | | Fuertesiella Schltr. | | Orchidaceae |
| Funckiella Schltr., orth. var. | Funkiella Schltr. | | | Funckiella Schltr., orth. var. | Funkiella Schltr. | Orchidaceae |
| Funkiella Schltr. | | a | | Funkiella Schltr. | | Orchidaceae |
| Galeoglossum A. Rich. & Galeotti | | a | | Galeoglossum A. Rich. & Galeotti | | Orchidaceae |
| Galeottiella Schltr. | | a | | Galeottiella Schltr. | | Orchidaceae |
| Gamosepalum Schltr. | Aulosepalum Garay | | | Gamosepalum Schltr. | Aulosepalum Garay | Orchidaceae |
| Garaya Szlach. | Mesadenella Pabst & Garay | | | Garaya Szlach. | Mesadenella Pabst & Garay | Orchidaceae |
| Geobina Raf. | Goodyera R. Br. | | | Geobina Raf. | Goodyera R. Br. | Orchidaceae |
| Georchis Lindl. | Goodyera R. Br. | | | Georchis Lindl. | Goodyera R. Br. | Orchidaceae |
| Glottisarcon Szlach. & Kolan. | | a | | Glottisarcon Szlach. & Kolan. | | Orchidaceae |
| Gomphichis Lindl. | | a | | Gomphichis Lindl. | | Orchidaceae |
| Gonatostylis Schltr. | | a | | Gonatostylis Schltr. | | Orchidaceae |
| Gonogona Link | Goodyera R. Br. | | | Gonogona Link | Goodyera R. Br. | Orchidaceae |
| Goodyera R. Br. | | a | | Goodyera R. Br. | | Orchidaceae |
| Gracielanthus R. González & Szlach. | Aulosepalum Garay | | | Gracielanthus R. González & Szlach. | Aulosepalum Garay | Orchidaceae |
| Greenwoodia Burns-Bal. | Kionophyton Garay | | | Greenwoodia Burns-Bal. | Kionophyton Garay | Orchidaceae |
| Gularia Garay | Schiedeella Schltr. | | | Gularia Garay | Schiedeella Schltr. | Orchidaceae |
| Gymnochilus Blume | Cheirostylis Blume | | | Gymnochilus Blume | Cheirostylis Blume | Orchidaceae |
| Gyrostachis Blume | Spiranthes Rich. | | | Gyrostachis Blume | Spiranthes Rich. | Orchidaceae |
| Gyrostachys Pers. ex Blume | Spiranthes Rich. | | | Gyrostachys Pers. ex Blume | Spiranthes Rich. | Orchidaceae |
| Haemaria Lindl. | Goodyera R. Br. | | | Haemaria Lindl. | Goodyera R. Br. | Orchidaceae |
| Halleorchis Szlach. & Olszewski | | a | | Halleorchis Szlach. & Olszewski | | Orchidaceae |
| Hapalorchis Schltr. | | a | | Hapalorchis Schltr. | | Orchidaceae |
| Haplochilus Endl. | Zeuxine Lindl. | | | Haplochilus Endl. | Zeuxine Lindl. | Orchidaceae |
| Helictonia Ehrh. | Spiranthes Rich. | | | Helictonia Ehrh. | Spiranthes Rich. | Orchidaceae |
| Helonoma Garay | | a | | Helonoma Garay | | Orchidaceae |
| Herpysma Lindl. | | a | | Herpysma Lindl. | | Orchidaceae |
| Hetaeria Blume | | a | | Hetaeria Blume | | Orchidaceae |
| Heterozeuxine T. Hashim. | Zeuxine Lindl. | | | Heterozeuxine T. Hashim. | Zeuxine Lindl. | Orchidaceae |
| Hylophila Lindl. | | a | | Hylophila Lindl. | | Orchidaceae |
| Hymenochilus D. L. Jones & M. A. Clem. | | a | | Hymenochilus D. L. Jones & M. A. Clem. | | Orchidaceae |
| Chamaegastrodia Makino & F. Maek. | | a | | Chamaegastrodia Makino & F. Maek. | | Orchidaceae |
| Cheirostylis Blume | | a | | Cheirostylis Blume | | Orchidaceae |
| Chrysobaphus Wall. | Anoectochilus Blume | | | Chrysobaphus Wall. | Anoectochilus Blume | Orchidaceae |
| Ibidium Salisb. ex House | Spiranthes Rich. | | | Ibidium Salisb. ex House | Spiranthes Rich. | Orchidaceae |
| Kionophyton Garay | | a | | Kionophyton Garay | | Orchidaceae |
| Kreodanthus Garay | | a | | Kreodanthus Garay | | Orchidaceae |
| Kuhlhasseltia J. J. Sm. | | a | | Kuhlhasseltia J. J. Sm. | | Orchidaceae |
| Lankesterella Ames | | a | | Lankesterella Ames | | Orchidaceae |
| Lepidogyne Blume | | a | | Lepidogyne Blume | | Orchidaceae |
| Leucostachys Hoffmanns. | Goodyera R. Br. | | | Leucostachys Hoffmanns. | Goodyera R. Br. | Orchidaceae |
| Ligeophila Garay | | a | | Ligeophila Garay | | Orchidaceae |
| Linguella D. L. Jones & M. A. Clem. | | a | | Linguella D. L. Jones & M. A. Clem. | | Orchidaceae |
| Ludisia A. Rich. | | a | | Ludisia A. Rich. | | Orchidaceae |
| Lyroglossa Schltr. | | a | | Lyroglossa Schltr. | | Orchidaceae |
| Macodes (Blume) Lindl. | | a | | Macodes (Blume) Lindl. | | Orchidaceae |
| Manniella Rchb. f. | | a | | Manniella Rchb. f. | | Orchidaceae |
| Mariarisqueta Guinea | Cheirostylis Blume | | | Mariarisqueta Guinea | Cheirostylis Blume | Orchidaceae |
| Mesadenella Pabst & Garay | | a | | Mesadenella Pabst & Garay | | Orchidaceae |
| Mesadenus Schltr. | | a | | Mesadenus Schltr. | | Orchidaceae |
| Microchilus C. Presl | | a | | Microchilus C. Presl | | Orchidaceae |
| Microthelys Garay | | a | | Microthelys Garay | | Orchidaceae |
| Moerenhoutia Blume | Platylepis A. Rich. | | | Moerenhoutia Blume | Platylepis A. Rich. | Orchidaceae |
| Monochilus Wall. ex Lindl. | Zeuxine Lindl. | | | Monochilus Wall. ex Lindl. | Zeuxine Lindl. | Orchidaceae |
| Monustes Raf. | Spiranthes Rich. | | | Monustes Raf. | Spiranthes Rich. | Orchidaceae |
| Myoda Lindl. | Ludisia A. Rich. | | | Myoda Lindl. | Ludisia A. Rich. | Orchidaceae |
| Myrmechis (Lindl.) Blume | | a | | Myrmechis (Lindl.) Blume | | Orchidaceae |
| Myrosmodes Rchb. f. | | a | | Myrosmodes Rchb. f. | | Orchidaceae |
| Narica Raf. | Sarcoglottis C. Presl | | | Narica Raf. | Sarcoglottis C. Presl | Orchidaceae |
| Nerissa Raf. | Ponthieva R. Br. | | | Nerissa Raf. | Ponthieva R. Br. | Orchidaceae |
| Nothostele Garay | | a | | Nothostele Garay | | Orchidaceae |
| Ocampoa A. Rich. & Galeotti | Cranichis Sw. | | | Ocampoa A. Rich. & Galeotti | Cranichis Sw. | Orchidaceae |
| Odontochilus Blume | | a | | Odontochilus Blume | | Orchidaceae |
| Odontorrhynchus M. N. Correa | | a | | Odontorrhynchus M. N. Correa | | Orchidaceae |
| Oestlundorchis Szlach. | Deiregyne Schltr. | | | Oestlundorchis Szlach. | Deiregyne Schltr. | Orchidaceae |
| Ochyrella Szlach. & R. González | Pteroglossa Schltr. | | | Ochyrella Szlach. & R. González | Pteroglossa Schltr. | Orchidaceae |
| Oligochaetochilus Szlach. | Pterostylis R. Br. | | | Oligochaetochilus Szlach. | Pterostylis R. Br. | Orchidaceae |
| Orchiastrum Ség. | Spiranthes Rich. | | | Orchiastrum Ség. | Spiranthes Rich. | Orchidaceae |
| Orchiodes Kuntze | Goodyera R. Br. | | | Orchiodes Kuntze | Goodyera R. Br. | Orchidaceae |
| Orchipedum Breda | | a | | Orchipedum Breda | | Orchidaceae |
| Pachygenium (Schltr.) Szlach. et al. | Pelexia Poit. ex Lindl. | | | Pachygenium (Schltr.) Szlach. et al. | Pelexia Poit. ex Lindl. | Orchidaceae |
| Pachyplectron Schltr. | | a | | Pachyplectron Schltr. | | Orchidaceae |
| Paorchis M. C. Pace | | a | | Paorchis M. C. Pace | | Orchidaceae |
| Papuaea Schltr. | | a | | Papuaea Schltr. | | Orchidaceae |
| Pelexia Poit. ex Lindl. | | a | | Pelexia Poit. ex Lindl. | | Orchidaceae |
| Peramium Salisb. ex Coult. | Goodyera R. Br. | | | Peramium Salisb. ex Coult. | Goodyera R. Br. | Orchidaceae |
| Petrorchis D. L. Jones & M. A. Clem. | | a | | Petrorchis D. L. Jones & M. A. Clem. | | Orchidaceae |
| Pharochilum D. L. Jones & M. A. Clem. | Pterostylis R. Br. | | | Pharochilum D. L. Jones & M. A. Clem. | Pterostylis R. Br. | Orchidaceae |
| Philippinaea Schltr. & Ames | Orchipedum Breda | | | Philippinaea Schltr. & Ames | Orchipedum Breda | Orchidaceae |
| Physogyne Garay | | a | | Physogyne Garay | | Orchidaceae |
| Physurus Rich. ex Lindl. | Microchilus C. Presl | | | Physurus Rich. ex Lindl. | Microchilus C. Presl | Orchidaceae |
| Platylepis A. Rich. | | a | | Platylepis A. Rich. | | Orchidaceae |
| Platythelys Garay | | a | | Platythelys Garay | | Orchidaceae |
| Plumatichilos Szlach. | | a | | Plumatichilos Szlach. | | Orchidaceae |
| Ponthieva R. Br. | | a | | Ponthieva R. Br. | | Orchidaceae |
| Porphyrostachys Rchb. f. | | a | | Porphyrostachys Rchb. f. | | Orchidaceae |
| Potosia (Schltr.) R. González & Szlach. ex Mytnik | | a | | Potosia (Schltr.) R. González & Szlach. ex Mytnik | | Orchidaceae |
| Prescotia Lindl., orth. var. | Prescottia Lindl. | | | Prescotia Lindl., orth. var. | Prescottia Lindl. | Orchidaceae |
| Prescottia Lindl. | | a | | Prescottia Lindl. | | Orchidaceae |
| Pristiglottis Cretz. & J. J. Sm. | Odontochilus Blume | | | Pristiglottis Cretz. & J. J. Sm. | Odontochilus Blume | Orchidaceae |
| Pseudocentrum Lindl. | | a | | Pseudocentrum Lindl. | | Orchidaceae |
| Pseudocranichis Garay | Galeoglossum A. Rich. & Galeotti | | | Pseudocranichis Garay | Galeoglossum A. Rich. & Galeotti | Orchidaceae |
| Pseudoeurystyles Hoehne | Eurystyles Wawra | | | Pseudoeurystyles Hoehne | Eurystyles Wawra | Orchidaceae |
| Pseudogoodyera Schltr. | | a | | Pseudogoodyera Schltr. | | Orchidaceae |
| Pseudomacodes Rolfe | Macodes (Blume) Lindl. | | | Pseudomacodes Rolfe | Macodes (Blume) Lindl. | Orchidaceae |
| Psychechilos Breda | Zeuxine Lindl. | | | Psychechilos Breda | Zeuxine Lindl. | Orchidaceae |
| Pterichis Lindl. | | a | | Pterichis Lindl. | | Orchidaceae |
| Pteroglossa Schltr. | | a | | Pteroglossa Schltr. | | Orchidaceae |
| Pterostylis R. Br. | | a | | Pterostylis R. Br. | | Orchidaceae |
| Queteletia Blume | Orchipedum Breda | | | Queteletia Blume | Orchipedum Breda | Orchidaceae |
| Ramphidia Miq. | Myrmechis (Lindl.) Blume | | | Ramphidia Miq. | Myrmechis (Lindl.) Blume | Orchidaceae |
| Ranorchis D. L. Jones & M. A. Clem. | Pterostylis R. Br. | | | Ranorchis D. L. Jones & M. A. Clem. | Pterostylis R. Br. | Orchidaceae |
| Rhamphidia Lindl. | Hetaeria Blume | | | Rhamphidia Lindl. | Hetaeria Blume | Orchidaceae |
| Rhamphorhynchus Garay | | a | | Rhamphorhynchus Garay | | Orchidaceae |
| Rhomboda Lindl. | | a | | Rhomboda Lindl. | | Orchidaceae |
| Sacoila Raf. | | a | | Sacoila Raf. | | Orchidaceae |
| Salacistis Rchb. f. | Goodyera R. Br. | | | Salacistis Rchb. f. | Goodyera R. Br. | Orchidaceae |
| Sarcoglottis C. Presl | | a | | Sarcoglottis C. Presl | | Orchidaceae |
| Sauroglossum Lindl. | | a | | Sauroglossum Lindl. | | Orchidaceae |
| Schiedeella Schltr. | | a | | Schiedeella Schltr. | | Orchidaceae |
| Schoenleinia Klotzsch ex Lindl. | Ponthieva R. Br. | | | Schoenleinia Klotzsch ex Lindl. | Ponthieva R. Br. | Orchidaceae |
| Schuitemania Ormerod | | a | | Schuitemania Ormerod | | Orchidaceae |
| Skeptrostachys Garay | | a | | Skeptrostachys Garay | | Orchidaceae |
| Solenocentrum Schltr. | | a | | Solenocentrum Schltr. | | Orchidaceae |
| Speculantha D. L. Jones & M. A. Clem. | Pterostylis R. Br. | | | Speculantha D. L. Jones & M. A. Clem. | Pterostylis R. Br. | Orchidaceae |
| Spiranthes Rich. | | a | | Spiranthes Rich. | | Orchidaceae |
| Stalkya Garay | | a | | Stalkya Garay | | Orchidaceae |
| Stamnorchis D. L. Jones & M. A. Clem. | Pterostylis R. Br. | | | Stamnorchis D. L. Jones & M. A. Clem. | Pterostylis R. Br. | Orchidaceae |
| Stenoptera C. Presl | | a | | Stenoptera C. Presl | | Orchidaceae |
| Stenorrhynchos Rich. ex Spreng. | | a | | Stenorrhynchos Rich. ex Spreng. | | Orchidaceae |
| Stephanothelys Garay | | a | | Stephanothelys Garay | | Orchidaceae |
| Stigmatosema Garay | Cyclopogon C. Presl | | | Stigmatosema Garay | Cyclopogon C. Presl | Orchidaceae |
| Strateuma Raf. | Zeuxine Lindl. | | | Strateuma Raf. | Zeuxine Lindl. | Orchidaceae |
| Svenkoeltzia Burns-Bal. | | a | | Svenkoeltzia Burns-Bal. | | Orchidaceae |
| Synanthes Burns-Bal. et al. | Eurystyles Wawra | | | Synanthes Burns-Bal. et al. | Eurystyles Wawra | Orchidaceae |
| Synassa Lindl. | Sauroglossum Lindl. | | | Synassa Lindl. | Sauroglossum Lindl. | Orchidaceae |
| Synoplectris Raf. | Sarcoglottis C. Presl | | | Synoplectris Raf. | Sarcoglottis C. Presl | Orchidaceae |
| Taurantha D. L. Jones & M. A. Clem. | | a | | Taurantha D. L. Jones & M. A. Clem. | | Orchidaceae |
| Thelyschista Garay | | a | | Thelyschista Garay | | Orchidaceae |
| Trachelosiphon Schltr. | Eurystyles Wawra | | | Trachelosiphon Schltr. | Eurystyles Wawra | Orchidaceae |
| Triorchis Agosti | Spiranthes Rich. | | | Triorchis Agosti | Spiranthes Rich. | Orchidaceae |
| Tripleura Lindl. | Zeuxine Lindl. | | | Tripleura Lindl. | Zeuxine Lindl. | Orchidaceae |
| Tubilabium J. J. Sm. | Myrmechis (Lindl.) Blume | | | Tubilabium J. J. Sm. | Myrmechis (Lindl.) Blume | Orchidaceae |
| Tussaca Raf. | Goodyera R. Br. | | | Tussaca Raf. | Goodyera R. Br. | Orchidaceae |
| Urochilus D. L. Jones & M. A. Clem. | Pterostylis R. Br. | | | Urochilus D. L. Jones & M. A. Clem. | Pterostylis R. Br. | Orchidaceae |
| Vexillabium F. Maek. | Kuhlhasseltia J. J. Sm. | | | Vexillabium F. Maek. | Kuhlhasseltia J. J. Sm. | Orchidaceae |
| Veyretia Szlach. | | a | | Veyretia Szlach. | | Orchidaceae |
| Vieillardorchis Kraenzl. | Goodyera R. Br. | | | Vieillardorchis Kraenzl. | Goodyera R. Br. | Orchidaceae |
| Vrydagzynea Blume | | a | | Vrydagzynea Blume | | Orchidaceae |
| Wallnoeferia Szlach. | Helonoma Garay | | | Wallnoeferia Szlach. | Helonoma Garay | Orchidaceae |
| Warscaea Szlach. | Cyclopogon C. Presl | | | Warscaea Szlach. | Cyclopogon C. Presl | Orchidaceae |
| Zeuxine Lindl. | | a | | Zeuxine Lindl. | | Orchidaceae |
| Zeuxinella Aver. | | a | | Zeuxinella Aver. | | Orchidaceae |
| Zhukowskia Szlach. et al. | | a | | Zhukowskia Szlach. et al. | | Orchidaceae |