• Species and lower taxa
• Higher taxa
• Common names

Cadetia, Section (Cadetia)

Cadetia, Genus

Calanthe, Section (Calanthe)

Calanthe, Genus

Calanthidium, Genus – synonym of Calanthe, Genus

Calcarifera, Section (Dendrobium)

Calcearia, Section (Corybas)

Calcearia, Genus – synonym of Corybas, Genus

Callostylis, Genus – synonym of Eria, Genus

Calochilus, Genus

Calymmanthera, Genus

Camarotis, Genus – synonym of Micropera, Genus

Camelostalix, Genus – synonym of Pholidota, Genus

Campanulorchis, Genus – synonym of Eria, Genus

Canacorchis, Genus – synonym of Bulbophyllum, Genus

Canacorchis, Genus – synonym of Monanthes, Section (Bulbophyllum)

Carparomorchis, Genus – synonym of Bulbophyllum, Genus

Carteretia, Genus – synonym of Cleisostoma, Genus

Caulescentes, Section (Plocoglottis)

Caulophreatia, Section (Phreatia)

Centrochilus, Genus – synonym of Habenaria, Genus

Centrosis, Genus – synonym of Calanthe, Genus

Ceratium, Genus – synonym of Eria, Genus

Ceratopsis, Genus – synonym of Epipogium, Genus

Ceratostylis, Section (Ceratostylis)

Ceratostylis, Genus

Ceratostylis/Juncorchis, Section (Ceratostylis)

Ceratostylopsis, Section – synonym of Stachysanthes, Section (Bulbophyllum)

Cerochilus, Genus – synonym of Hetaeria, Genus

Cestichis, Section (Malaxideae)

Cestichis, Genus – synonym of Liparis, Genus

Chaunodesme, Section (Appendicula)

Chaunodesme/Fissanthera, Section (Appendicula)

Chaunodesme?, Section (Appendicula)

Cheiropterocephalus, Genus – synonym of Malaxis, Genus

Cheirostylis, Genus

Chelonanthera, Section (Pholidota)

Chelonanthera, Genus – synonym of Pholidota, Genus

Chilopogon, Section (Appendicula)

Chilopogon, Genus – synonym of Appendicula, Genus

Chitonanthera, Genus – synonym of Octarrhena, Genus

Chitonochilus, Genus – synonym of Agrostophyllum, Genus

Chlorinae, Section (Habenaria)

Chlorosa, Genus – synonym of Cryptostylis, Genus

Choeradoplectron, Genus – synonym of Peristylus, Genus

Chrysobaphus, Genus – synonym of Anoectochilus, Genus

Chrysoglossum, Genus

Cionisaccus, Genus – synonym of Goodyera, Genus

Cirrhopetaloides, Section – synonym of Cirrhopetalum, Section (Bulbophyllum)

Cirrhopetalum, Section (Bulbophyllum)

Cirrhopetalum, Genus – synonym of Bulbophyllum, Genus

Cirrhopetalum, Genus – synonym of Cirrhopetalum, Section (Bulbophyllum)

Cirrhopetalum, Subgenus – synonym of Cirrhopetalum, Section (Bulbophyllum)

Cistella, Genus – synonym of Geodorum, Genus

Claderia, Genus

Claderiinae, Subtribe

Cleisostoma, Genus

Cnemidia, Genus – synonym of Tropidia, Genus

Cochlia, Genus – synonym of Brachystachyae, Section (Bulbophyllum)

Cochlia, Genus – synonym of Bulbophyllum, Genus

Cochlia, Section – synonym of Brachystachyae, Section (Bulbophyllum)

Codonosiphon, Section (Bulbophyllum)

Codonosiphon, Genus

Codonosiphon, Genus – synonym of Bulbophyllum, Genus

Codonosiphon, Genus – synonym of Codonosiphon, Section (Bulbophyllum)

Coelochilus, Section – synonym of Codonosiphon, Section (Bulbophyllum)

Coeloglossum, Genus – synonym of Peristylus, Genus

Coelogyne, Genus

Coelogyninae, Subtribe

Collabieae, Tribe

Collabiinae, Subtribe

Collabiopsis, Genus – synonym of Collabium, Genus

Collabium, Genus

Conchidium, Genus – synonym of Eria, Genus

Conchochilus, Genus – synonym of Appendicula, Genus

Conchoglossum, Genus – synonym of Cyrtosia, Genus

Conopsidium, Genus – synonym of Platanthera, Genus

Conostalix, Section (Dendrobium)

Coralliokyphos, Genus – synonym of Moerenhoutia, Genus

Cordula, Genus – synonym of Paphiopedilum, Genus

Cordyla, Genus – synonym of Nervilia, Genus

Cordylestylis, Genus – synonym of Goodyera, Genus

Corybas, Genus

Corymbis, Genus – synonym of Corymborkis, Genus

Corymborchis, Genus – synonym of Corymborkis, Genus

Corymborkis, Genus

Coryopedilum, Section (Paphiopedilum)

Corysanthes, Genus – synonym of Corybas, Genus

Crangonorchis, Genus – synonym of Pterostylis, Genus

Cranichideae, Tribe

Crepidium, Section (Malaxideae)

Crepidium, Genus

Crepidium, Genus – synonym of Malaxis, Genus

Crinonia, Section (Pholidota)

Crinonia, Genus – synonym of Pholidota, Genus

Crumenata, Section (Dendrobium)

Cryptoglottis, Genus – synonym of Podochilus, Genus

Cryptorchis, Genus – synonym of Taeniophyllum, Genus

Cryptostylidinae, Subtribe

Cryptostylis, Genus

Cuneilabium, Section (Eria)

Cyanorkis, Genus – synonym of Phaius, Genus

Cybele, Genus – synonym of Herminium, Genus

Cycloglossum, Section – synonym of Peltopus, Section (Bulbophyllum)

Cylindracea, Section – synonym of Brachystachyae, Section (Bulbophyllum)

Cylindrochilus, Genus – synonym of Thrixspermum, Genus

Cylindrolobus, Section (Eria)

Cylindrolobus, Genus – synonym of Eria, Genus

Cylindrolobus?, Section (Eria)

Cymbidieae, Tribe

Cymbidiinae, Subtribe

Cymbidium, Genus

Cymboglossum, Genus – synonym of Eria, Genus

Cyperorchis, Genus – synonym of Cymbidium, Genus

Cyphochilus, Section (Appendicula)

Cyphochilus, Genus – synonym of Appendicula, Genus

Cypripedioideae, Subfamily

Cyrtopera, Genus – synonym of Eulophia, Genus

Cyrtosia, Genus

Cystopus, Genus – synonym of Pristiglottis, Genus

Cystorchis, Genus