Withner & P.A.Harding Anathallis Ancipitia Ancistrochilus Rolfe Ancistrorhynchus Angraecopsis Angraecum bory Anguloa Ania Anoectochilus: jeweled orchid Ansellia Lindl. Anteriorchis (synonym of Anacamptis) Anthogonium Anthosiphon Antilla Antillanorchis Aorchis Aphyllorchis Aplectrum Nuttall: Adam and Eve Apoda-prorepentia Aporostylis Aporum Apostasia Blume Appendicula Aracamunia Arachnis Blume Arachnites Archineottia Areldia Arethusa: dragon's mouth Armodorum Arnottia Arpophyllum Arthrochilus Artorima Arundina Blume: bamboo orchid Ascidieria Ascocentrum Ascochilopsis Ascochilus Ascoglossum Ascolabium Aspasia Aspidogyne Atopoglossum Aulosepalum Auxopus Azadehdelia (synonym of Cribbia Senghas) B Baptistonia Barb.Rodr. Barbosella Barbrodria Barkeria Barlia Bartholina Basigyne Basiphyllaea: crab orchid Baskervilla Batemannia Beclardia Beloglottis Benthamia Benzingia Bhutanthera Bidoupia Biermannia Bifrenaria Lindl. Binotia Bipinnula Bletia Ruiz and Pavon: pine-pink Bletilla Rchb.F.: urn orchid Bogoria Bolbidium Bollea Rchb.F. Bolusiella Bonatea Willd. Bonniera Brachionidium: cup orchid Brachtia Brachycorythis Lindl. Brachypeza Brachystele Bracisepalum Braemia Brassavola R.Br.: daddy-long-legs Brassia: cricket orchid Brenesia Briegeria Bromheadia Broughtonia R.Br. Brownleea Bryobium Buchtienia Bulbophyllum Thouars: rat-tail orchid Bulleyia Burnettia Burnsbaloghia C Cadetia Gaudich. Caladenia R.Br. Calanthe R.Br. Caleana R.Br. Callostylis Calochilus R.Br.: bearded orchids Calopogon R.Br.: grasspink Caluera Calymmanthera Calypso Salisb.: fairy-slipper orchid Calyptrochilum Camaridium Campanulorchis Campylocentrum: bent-spur orchid Capanemia Cardiochilos Catasetum Cattleya Lindl. Cattleyella Van den Berg & M.W.Chase Cattleyopsis Lemaire Caucaea Caularthron Raf. Centroglossa Centrostigma Schltr. Cephalanthera Rich.: some helleborines, phantom orchid Cephalantheropsis Ceraia Ceratandra Ceratocentron Ceratochilus Ceratostylis Blume Chamaeangis Chamaeanthus Chamaegastrodia Chamelophyton Chamorchis Changnienia Chaseella Chaubardia Chaubardiella Chauliodon Cheiradenia Cheirostylis Chelonistele Chelyorchis Chiloglottis R.Br. Chilopogon Chiloschista Lindl. Chiloterus Chitonanthera Chitonochilus Chloraea Chondradenia Chondrorhyncha Lindl. Christensonella Chroniochilus Chrysocycnis Chrysoglossum Chusua Chysis Lindl. Chytroglossa Cirrhaea Lindl. Cirrhopetalum Cischweinfia Claderia Cleisocentron Cleisomeria Cleisostoma Blume Cleistes Cleistesiopsis rosebud orchid Clematepistephium Clowesia Lindl. Coccineorchis Cochleanthes Raf.: fan-shape orchid Cochlioda Lindl. Cocleorchis Codonorchis Codonosiphon Coelia Lindl. Coeliopsis Coeloglossum: frog orchid Coelogyne Lindl. Coilochilus Coilostylis Withner & P.A.Harding Collabium Colombiana Comparettia Poepp. & Endl.: snail orchid Comperia Conchidium Condylago Luer Constantia Corallorhiza (Haller) Chatelaine: coral root Cordiglottis Corunastylis Coryanthes Hook.: bucket orchids Corybas Salisb. Corycium Corymborkis: crow orchid Corysanthes Cottonia Cotylolabium Cranichis: helmet orchid Cremastra Crepidium Cribbia Crocodeilanthe Crossoglossa Cryptarrhena Cryptocentrum Cryptochilus Cryptopus Cryptopylos Cryptostylis R.Br. Cucumeria Cuitlauzina Cyanaeorchis Cyanicula Cybebus Cyclopogon: ladies'-tresses Cycnoches Lindl.: swan orchids Cylindrolobus Cymbidiella Rolfe Cymbidium Sw. Cymboglossum Cynorkis Thouars Cyphochilus Cypholoron Cypripedium L.: lady's slipper Cyrtidiorchis Cyrtochilum Cyrtopodium R.Br.: cow-horn orchid Cyrtorchis Schltr. Cyrtosia Cyrtostylis Cystorchis D Dactylorchis Dactylorhiza: key flower Dactylorhynchus Dactylostalix Degranvillea Deiregyne Demorchis Dendrobium Dendrochilum Dendrolirium Dendrophylax Devogelia Diadenium Diaphananthe Diceratostele Dicerostylis Dichaea: leafy-stem orchid, leaf-stem orchid Dichromanthus Dickasonia Dictyophyllaria Didactylus Didiciea Didymoplexiella Didymoplexiopsis Didymoplexis Dienia Diglyphosa Dignathe Dilochia