Genus: VargasiellaAlliance hybrids: of the 43 hybrids in this tribe, only × Angulocaste is displayed frequently. Genera: Aitkenara, Bateostylis, Bollopetalum, Chondrobollea, Cochella, Cochlecaste, Cochlenia, Cochlepetalum, Downsara, Durutyara, Hamelwellsara, Huntleanthes, Kanzerara, Keferanthes, Lancebirkara, Otocolax, Otonisia, Palmerara, Rotorara, Zygocaste, Zygolum, Zygonisia, ZygostylisSubfamily Orchidoideae Tribe Diceratosteleae Genus: DiceratosteleTribe Codonorchideae Genus: CodonorchisTribe Cranichideae The former subfamily Spiranthoideae is now embedded in the clade Orchidoideae as the tribe Cranichideae (Dressler, 1993). It includes 95 genera and about 1100 species. Species of this polyphyletic tribe occur in all continents (except Antarctica), but mainly in North and South America and tropical Asia. All subtribes are monophyletic. Subtribe Cranichidinae: occurring in the Neotropics Genera: Altensteinia, Baskervilla, Cranichis, Exalaria, Fuertesiella, Myrosmodes, Nothostele, Ponthieva, Pseudocentrum, Pseudocranichis, Pterichis, SolenocentrumSubtribe Prescottiinae: occurs in the Neotropics Genera: Aa, Gomphichis, Porphyrostachys, Prescottia, StenopteraSubtribe Galeottiellinae Genus: GaleottiellaSubtribe Goodyerinae: 37 genera, about 630 species in Africa, the Americas and Asia. Genera: Aenhenrya, Anoectochilus, Aspidogyne, Chamaegastrodia, Cheirostylis, Cystorchis, Danhatchia, Dassinia, Erythrodes, Eurycentrum, Gonatostylis, Goodyera, Halleorchis, Herpysma, Hetaeria, Hylophila, Kreodanthus, Kuhlhasseltia, Lepidogyne, Lageophila, Ludisia, Macodes, Meliorchis (extinct), Microchilus, Myrmechis, Odontochilus, Orchipedum, Pachyplectron, Papuaea, Platylepis, Platythelys, Rhamphorhynchus, Rhomboda, Stephanothelys, Vrydagzynea, ZeuxineSubtribe Manniellinae: tropical Africa Genus: ManniellaSubtribe Pterostylidinae Genera: Achlydosa, PterostylisSubtribe Spiranthinae: about 30 genera; largely terrestrial; widespread, but absent in sub-Saharan Africa; fascicled roots, dorsal erect anther, inconspicuous staminodia, resupinate flowers. Genera: Aracamunia, Aulosepalum, Beloglottis, Brachystele, Buchtienia, Coccineorchis, Cotylolabium, Cybebus, Degranvillea, Deiregyne, Dichromanthus, Discyphus, Eltroplectris, Eurystyles, Funkiella, Hapalorchis, Helonoma, Kionophyton, Lankesterella, Lyroglossa, Mesadenella, Mesadenus, Microthelys, Odontorrhynchus, Pelexia, Physogyne, Pseudogoodyera, Pteroglossa, Sacoila, Sarcoglottis, Sauroglossum, Schiedeella, Skeptrostachys, Spiranthes, Stalkya, Svenkoeltzia, Thelyschista, Veyretia, WallnoeferiaSubtribe Stenorrhynchidinae Genus: StenorrhynchosSubtribe Cyclopogoninae Genus: CyclopogonTribe Diseae Subtribe Brownleeinae Genus: BrownleeaSubtribe Coryciinae Genera: Ceratandra, Corycium, Disperis, Evotella, PterygodiumSubtribe Disinae Genera: Disa, SchizodiumSubtribe Huttonaeinae Genus: HuttonaeaSubtribe Satyriinae Genera: Pachites, SatyriumTribe Diurideae About 550 species in 39 genera; mainly Australasia. Subtribe Acianthinae Genera: Acianthus, Corybas, Cyrtostylis, Stigmatodactylus, TownsoniaSubtribe Caladeniinae Genera: Adenochilus, Aporostylis, Caladenia, Cyanicula, Elythranthera, Ericksonella, Eriochilus, Glossodia, Leptoceras, Pheladenia, PraecoxanthusSubtribe Chloraeinae: From South America and New Caledonia (Megastylis) Genera: Bipinnula, Chloraea, Gavilea, Geoblasta, MegastylisSubtribe Cryptostylidinae Genera: Coilochilus, CryptostylisSubtribe Diuridinae Genera: Diuris, OrthocerasSubtribe Drakaeinae Genera: Arthrochilus, Calaena, Chiloglottis, Drakaea, Myrmechila, SpiculaeaSubtribe Megastylidinae Genera: Burnettia, Leporella, Lyperanthus, Megastylis, Pyrorchis, Rimacola, WaireiaSubtribe Prasophyllinae Genera: Genoplesium, Microtis, PrasophyllumSubtribe Pterostylidinae Subtribe Thelymitrinae Genera: Calochilus, Epiblema, ThelymitraTribe Orchideae This is the largest tribe, containing more than 1,700 species. It has been divided into two subtribes, Orchidinae and Habenariinae. However, the generic boundaries are unclear, and phylogenetic studies show that many genera are paraphyletic or even