GÊNERO |
ABREVIAÇÃO |
COMPOSIÇÃO |
| Taeniophyllum | Tnphyl* | Natural |
| Tainia | Tainia | Natural |
| Teagueia | Tguia* | Natural |
| Telipogon | Tlpgon | Natural |
| Teohara | Thra | Arach x Ren x V x Vdps |
| Tetracattleya | Ttct | C x Ttma |
| Tetradiacrium | Ttdm | Diacm x Ttma |
| Tetrakeria | Ttka | Bark x Ttma |
| Tetraliopsis | Ttps | Lps x Ttma |
| Tetramicra | Ttma | Natural |
| Tetratonia | Tttna | Bro x Ttma |
| Thecostele | Thecst | Natural |
| Thelymitra | Thel | Natural |
| Thesaera | Thsra | Aergs x Aerth |
| Thompsonara | Thmpa | Ctsm x Cym x Gram |
| Thunia | Thu | Natural |
| Ticoglossum | Ticogl | Natural |
| Tolumnia | Tlmna* | Natural |
| Trautara | Trta | Dor x Lsa x Phal |
| Trevorara | Trev | Arach x Phal x V |
| Triaristella | Trstl* | Natural |
| Trias | Trias | Natural |
| Triaspetalum | Tspt | Cirr x Trias |
| Triasphyllum | Tphm | Bulb x Trias |
| Trichocentrum | Trctm | Natural |
| Trichoceros | Tricer | Natural |
| Trichocidium | Trcdm | Onc x Trctm |
| Trichoglottis | Trgl | Natural |
| Trichonopsis | Trnps | Phal x Trgl |
| Trichopilia | Trpla | Natural |
| Trichopsis | Trcps | Trgl x Vdps |
| Trichosalpinx | Trchpnx | Natural |
| Trichostylis | Trst | Rhy x Trgl |
| Trichovanda | Trcv | Trgl x V |
| Trigolyca | Trgca | Mcla x Trgdm |
| Trigonidium | Trgdm | Natural |
| Trisetella | Tris | Natural |
| Trisuloara | Tsla | Bark x B x Cx Epi x L x Soph |
| Trizeuxis | Trzxs* | Natural |
| Tubaecum | Tbcm | Angcm x Tblm |
| Tuberolabium | Tblm | Natural |
| Tuckerara | Tuck | C x Diacm x Epi |
| Turnbowara | Tbwa | Bark x Bro x C |
| Uptonara | Upta | Phal x Rhy x Sarco |
| Vacherotara | Vach | B x Bro x C x Epi x L x Soph |
| Vanalstyneara | Vnsta | Milt x Odm x Onc x Rdza |
| Vancampe | Vcp | Acp x V |
| Vanda | V | Natural |
| Vandachnis | Vchns | Arach x Vdps |
| Vandaenopsis | Vdnps | Phal x V |
| Vandaeranthes | Vths | Aerth x V |
| Vandewegheara | Vwga | Asctm x Dor x Phal x V |
| Vandofinetia | Vf | Neof x V |
| Vandofinides | Vfds | Aer x Neof x V |
| Vandopsides | Vdpsd | Aer x Vdps |
| Vandopsis | Vdps | Natural |
| Vandoritis | Vdts | Dor x V |
| Vanglossum | Vgm | Ascgm x V |
| Vanilla | Vnlla* | Natural |
| Vascostylis | Vasco | Asctm x Rhy x V |
| Vaughnara | Vnra | B x C x Epi |
| Vejvarutara | Vja | Bro x C x Ctps |
| Vuylstekeara | Vuyl | Cda x Milt x Odm |