GÊNERO |
ABREVIAÇÃO |
COMPOSIÇÃO |
| Cadetia | Cad | Natural |
| Caladenia | Calda | Natural |
| Calanthe | Cal | Natural |
| Caloarethusa | Clts | Aret x Cpg |
| Calochilus | Clchs | Natural |
| Calomitra | Cmta | Clchs x Thel |
| Calopogon | Cpg | Natural |
| Campbellara | Cmpba | Odm x Onc x Rdza |
| Campylocentrum | Cmplcn | Natural |
| Capanemia | Cap | Natural |
| Carmichaelara | Crml | B x Bro x L |
| Carpenterara | Cptra | Bapt x Odm x Onc |
| Carterara | Ctra | Aer x Ren x Vdps |
| Casoara | Csr | B x Bro x Lps |
| Catamodes | Ctmds | Ctsm x Morm |
| Catanoches | Ctnchs | Ctsm x Cyc |
| Catasandra | Ctsda | Ctsm x Gal |
| Catasetum | Ctsm | Natural |
| Cattkeria | Cka | Bark x C |
| Cattleya | C | Natural |
| Cattleyopsis | Ctps | Natural |
| Cattleyopsisgoa | Ctpga | Ctps x Dga |
| Cattleyopsistonia | Ctpsta | Bro x Ctps |
| Cattleytonia | Ctna | Bro x C |
| Cattotes | Ctts | C x Lpt |
| Caularthron | Clrthr | Natural |
| Cephalanthera | Ceph | Natural |
| Cephalopactis | Cpts | Ceph x Epcts |
| Ceratocentron | Crtn | Natural |
| Ceratochilus | Crtchl* | Natural |
| Ceratograecum | Crgm | Angcm x Crtn |
| Ceratostylis | Crtstl | Natural |
| Chamaeangis | Chmngs | Natural |
| Charlesworthara | Cha | Cda x Milt x Onc |
| Charlieara | Charl | Rhy x V x Vdps |
| Chaubardiella | Chbrdl | Natural |
| Chelonistele | Chlnst | Natural |
| Chewara | Chew | Aer x Ren x Rhy |
| Chilocentrum | Chctm | Asctm x Chsch |
| Chiloglottis | Chlglt | Natural |
| Chiloschista | Chsch | Natural |
| Chondranthes | Cdths | Chdrh x Cnths |
| Chondrobollea | Chdb | Bol x Chdrh |
| Chondrorhyncha | Chdrh | Natural |
| Christensonia | Chrstn* | Natural |
| Christieara | Chtra | Aer x Asctm x V |
| Chuanyenara | Chnya | Arach x Ren x Rhy |
| Chyletia | Chlt | Natural |
| Chysis | Chy | Natural |
| Chytroglossa | Chyt | Natural |
| Cirrhaea | Crrhea | Natural |
| Cirrhopea | Chpa | Cra x Stan |
| Cirrhopetalum | Cirr | Natural |
| Cirrhophyllum | Crphm | Bulb x Cirr |
| Cischostalix | Cstx | Cisch x Sgmx |
| Cischweinfia | Cisch | Natural |
| Cischweintia | Cisch | Natural |
| Clarkeara | Clka | B x C x Diacm x L x Soph |
| Cleisocalpa | Clclp | Clctn x Pmcpa |
| Cleisocentron | Clctn | Natural |
| Cleisodes | Clsd | Aer x Clctn |
| Cleisofinetia | Clfta | Clctn x Neof |
| Cleisomeria | Clsmr | Natural |
| Cleisonopsis | Clnps | Clctn x Phal |
| Cleisopera | Clspa | Cleis x Micr |
| Cleisoquetia | Clq | Clctn x Rbq |
| Cleisostoma | Cleis | Natural |
| Cleisostylis | Clsty | Clctn x Rhy |
| Cleisothera | Cltha | Cleis x Pthia |
| Clowesia | Clow | Natural |
| Cochella | Chla | Cnths x Mdcla |
| Cochleanthes | Cnths | Natural |
| Cochlecaste | Cccst | Cnths x Lyc |
| Cochlenia | Cclna | Snths x Stenia |
| Cochleottia | Colta | Cnths x Glta |
| Cochlepetalum | Ccptm | Cnths x Z |
| Cochlioda | Cda | Natural |
| Coeliopsis | Clpss | Natural |
| Coelogyne | Coel | Natural |
| Colasepalum | Clsm | Cl. X Zspm |
| Colaste | Cste | Clx x Lyc |
| Colax | Clx | Natural |
| Coleottia | Cta | Clx x Glta |
| Colmanara | Colm | Milt x Odm x Onc |
| Comparettia | Comp | Natural |
| Conphronitis | Conph | Const x Soph |
| Constantia | Const | Natural |
| Cookara | Cook | Bro x C x Diacm x L |
| Coryanthes | Crths | Natural |
| Corybas | Crybs | Natural |
| Coryhopea | Crhpa | Crths x Stan |
| Corymborkis | Crmbrk | Natural |
| Cranichis | Crnchs | Natural |
| Crawshayara | Crwshy | Natural |
| Crawwhayara | Craw | Asp x Brs x Milt x Onc |
| Cryptarrhena | Crptrr | Natural |
| Cryptocentrum | Crptcm* | Natural |
| Cryptochilus | Crypch* | Natural |
| Cryptopus | Crypt | Natural |
| Cryptostylis | Crptst | Natural |
| Cuitlauzina | Cuit | Natural |
| Cyclopogon | Cyclpg* | Natural |
| Cycnandra | Cycda | Cyc x Gal |
| Cycnoches | Cyc | Natural |
| Cycnodes | Cycd | Cyc x Morm |
| Cymasetum | Cymst | Cym x Ctsm |
| Cymbidiella | Cymla | Natural |
| Cymbidium | Cym | Natural |
| Cymphiella | Cymph | Cym x Eul |
| Cynorkis | Cyn | Natural |
| Cynosorchis | Cynsch* | Natural |
| Cyperorchis | Cporch | Natural |
| Cypripedium | Cyp | Natural |
| Cyrtellia | Cyrtl | Aslla x Cyrt |
| Cyrtochilum | Cyrtch | Natural |
| Cyrtoglottis | Cyrtgl* | Natural |
| Cyrtopodium | Cyrt | Natural |
| Cyrtorchis | Cyrtcs | Natural |