Cadetia taylori

Calanthe discolor
Calanthe rubens
Calanthe striata

Catasetum fimbriatum
Catasetum pileatum
Catasetum saccatum

Cattleya aclandiae
Cattleya amethystoglossa
Cattleya araguaiensis
Cattleya aurantiaca
Cattleya bicolor
Cattleya bowringiana
Cattleya harrisoniana
Cattleya intermedia
Cattleya jenmanii
Cattleya labiata
Cattleya loddigesii
Cattleya luteola
Cattleya maxima
Cattleya mendelii
Cattleya percivaliana
Cattleya tigrina (syn : C. leopoldii)
Cattleya trianae
Cattleya warneri

Caucaea mimetica (syn : Oncidium nubigenum)
Caucaea nubigena (syn : Oncidium nubigenum)
Caucaea phalaenopsis (syn : Oncidium phalaenopsis)

Ceratostylis rubra

Chelonistele sulphurea

Chiloschista viridiflava

Chysis aurea
Chysis bractescens

Chytroglossa marileoniae

Cochleanthes amazonica
Cochleanthes discolor

Cochlioda noezliana
Cochlioda rosea
Cochlioda vulcanica

Coelia triptera

Coelogyne cristata
Coelogyne flaccida
Coelogyne lactea
Coelogyne lawrenceana
Coelogyne mooreana
Coelogyne nidita
Coelogyne stricta
Coelogyne tomentosa (syn : C. massangeana)
Coelogyne usitana

Le genre Colombiana

Comparettia coccinea
Comparettia ignea
Comparettia macroplectron
Comparettia speciosa

Le genre Condylago

Coryanthes alborosea
Coryanthes boyi

Cribbia confusa

Cuitlauzina pulchella (syn : Osmoglossum pulchellum)

Cycnoches aureum
Cycnoches carrii
Cycnoches chlorochilon
Cycnoches cooperi

Cymbidiella pardaliana

Cymbidium devonianum
Cymbidium eburneum
Cymbidium erythraeum
Cymbidium erythrostylum
Cymbidium floribundum
Cymbidium goeringii
Cymbidium kanran
Cymbidium madidum
Cymbidium tigrinum
Cymbidium tracyanum

Cynorkis uncinata

Cypripedium kentuckiense
Cypripedium parviflorum

Cyrtochilum alboroseum
Cyrtochilum diodon
Cyrtochilum edwardii
Cyrtochilum ioplocon
Cyrtochilum macranthum
Cyrtochilum serratum
Cyrtochilum superbiens

Cyrtorchis arcuata