List of natural Orchidaceae genera(C)

1.  Cadetia Gaudich.
2. Caladenia R.Br.
3. Calanthe R.Br.
4. Caleana R.Br.
5. Callostylis
6. Calochilus R.Br.: Bearded Orchids
7. Calopogon R.Br.: Grasspink
8. Caluera
9. Calymmanthera
10. Calypso Salisb.: Fairy-slipper Orchid
11. Calyptrochilum
12. Campanulorchis
13. Campylocentrum: Bent-spur Orchid
14. Capanemia
15. Cardiochilus
16. Catasetum
17. ×Catcylaelia J.M.H.Shaw (Cattleya × Encyclia × Laelia)
18. Cattleya Lindl.
19. Cattleyella Van den Berg & M.W.Chase
20. Cattleyopsis Lemaire
21. ×Catyclia J.M.H.Shaw (Cattleya × Encyclia)
22. Caucaea
23. Caularthron Raf.
24. ×Caultonia Griffits & J.M.H.Shaw (Broughtonia × Caularthron)
25. Centroglossa
26. Centrostigma Schltr.
27. Cephalanthera Rich.: Some helleborines, Phantom orchid
28. Cephalantheropsis
29. Ceraia
30. Ceratandra
31. Ceratocentron
32. Ceratochilus
33. Ceratostylis Blume
34. ×Chadwickara G.Monnier & J.M.H.Shaw (Pabstia × Zygopetalum × Zygosepalum)
35. Chamaeangis
36. Chamaeanthus
37. Chamaegastrodia
38. Chamelophyton
39. Chamorchis
40. Changnienia
41. Chaseella
42. Chaubardia
43. Chaubardiella
44. Chauliodon
45. Cheiradenia
46. Cheirostylis
47. Chelonistele
1. Chelonistele amplissima
2. Chelonistele apiculata
3. Chelonistele biflora
4. Chelonistele brevilamellata
5. Chelonistele clemensii
6. Chelonistele crassifolia
7. Chelonistele cuneata
8. Chelonistele dentifera
9. Chelonistele ingloria
10. Chelonistele keithiana
11. Chelonistele kinabaluensis
12. Chelonistele kutaiensis
13. Chelonistele lamellulifera
14. Chelonistele laetitia-reginae
15. Chelonistele lurida
16. Chelonistele perakensis
17. Chelonistele pinniloba
18. Chelonistele pusilla
19. Chelonistele ramentacea
20. Chelonistele richardsii
21. Chelonistele sulphurea
22. Chelonistele tenuiflora
23. Chelonistele unguiculata
24. Chelonistele vermicularis
48. Chelyorchis
49. ×Chelyopsis J.M.H.Shaw (Psychopsis Raf. × Chelyorchis Dressler & N.H.Williams).
50. Chiloglottis R.Br.
51. Chilopogon
52. Chiloschista Lindl.
53. Chiloterus
54. Chitonanthera
55. Chitonochilus
56. Chloraea
57. Chondradenia
58. Chondrorhyncha Lindl.
59. Chroniochilus
60. Chrysocycnis
61. Chrysoglossum
62. Chusua
63. Chysis Lindl.
64. Chytroglossa
65. Cirrhaea Lindl.
66. Cirrhopetalum
67. Cischweinfia
68. Claderia
69. Cleisocentron
70. Cleisomeria
71. Cleisostoma Blume
72. Cleistes: Rosebud Orchid
73. Clematepistephium
74. Clowesia Lindl.
75. Coccineorchis
76. Cochleanthes Raf.: Fan-shape Orchid
77. Cochlioda Lindl.
78. Cocleorchis
79. Codonorchis
80. Codonosiphon
81. Coelia Lindl.
82. Coeliopsis
83. Coeloglossum: Frog Orchid
84. Coelogyne Lindl.
85. Coilochilus
86. Coilostylis Withner & P.A.Harding
87. Collabium
88. Colombiana
89. Comparettia Poepp. & Endl.: Snail Orchid
90. ×Compelenzia (Comparettia × Rodriguezia × Zelenkoa)
91. Comperia
92. ×Comptoglossum (Himantoglossum Spreng. × Comperia K.Koch)
93. Conchidium
94. Condylago Leur
95. Constantia
96. Corallorrhiza (Haller) Chatelaine: Coral Root
97. Cordiglottis
98. Corunastylis
99. Coryanthes Hook.: Bucket Orchids
100. Corybas Salisb.
101. Corycium
102. Corymborkis: Crow orchid
103. Corysanthes
104. Cottonia
105. Cotylolabium
106. Cranichis: Helmet orchid
107. Cremastra
108. Cribbia
109. Crocodeilanthe
110. Crossoglossa
111. Cryptarrhena
112. Cryptocentrum
113. Cryptochilus
114. Cryptopus
115. Cryptopylos
116. Cryptostylis R.Br.
117. Cucumeria
118. Cuitlauzina
119. Cyanaeorchis
120. Cyanicula
121. ×Cyanthera
122. Cybebus
123. Cyclopogon: Ladies'-tresses
124. Cycnoches Lindl.: Swan Orchids
125. Cylindrolobus
126. Cymbidiella Rolfe
127. Cymbidium Sw.
128. Cymboglossum
129. Cynorkis Thouars
130. Cyphochilus
131. Cypholoron
132. Cypripedium L.: Lady's Slipper
133. Cyrtidiorchis
134. Cyrtochilum
135. Cyrtopodium R.Br.: Cow-horn Orchid
136. Cyrtorchis Schltr.
137. Cyrtosia
138. Cyrtostylis
139. Cystorchis