C Cadetia Gaudich. Caladenia R.Br. thumb|240px|Calanthe triplicata thumb|240px|Chysis bractescens thumb|240px|Chloraea crispa thumb|240px|Cochleanthes amazonica thumb|240px|Cochlioda noezliana thumb|240px|Coelogyne cristata thumb|240px|Coelogyne tomentosa thumb|240px|Coelogyne speciosa thumb|240px|Comparettia macroplectrum thumb|240px|Comparettia speciosa thumb|240px|Cycnoches peruviana thumb|240px|Cymbidiella pardalina thumb|240px|Cypripedium acaule Calanthe R.Br. Caleana R.Br. Callostylis Blume Calochilus R.Br. Calopogon R.Br. Caluera Dodson & Determann Calymmanthera Schltr. Calypso Salisb. Calyptrochilum Kraenzl. Campanulorchis Brieger Campylocentrum Benth. Capanemia Barb.Rodr. Cardiochilus J. E. Cribbs Catasetum ex Kunth ×Catcylaelia J.M.H.Shaw (Cattleya × Encyclia × Laelia) Cattleya Lindl. Cattleyella Van den Berg & M.W.Chase Cattleyopsis Lemaire ×Catyclia J.M.H.Shaw (Cattleya × Encyclia) Caucaea Schltr. Caularthron Raf. ×Caultonia Griffits & J.M.H.Shaw (Broughtonia × Caularthron) Centroglossa Barb.Rodr. Centrostigma Schltr. Cephalanthera Rich. Cephalantheropsis Guillaumin Ceraia Lour. Ceratandra Lindl. Ceratocentron Senghas Ceratochilus Lindl.