epiphytes, in 43 genera. It contains more than 25% (136) of all hybrid genera. Alliance Isochilus Hexisea Lindl., included Costaricaea Schltr., Euothonaea Rchb.f., Isochilus R.Br. Alliance Cattleya Brassavola R.Br., included Eudisanthema Neck. ex Post & Kuntze, Lysimnia Raf., Tulexis Raf. Broughtonia R.Br., included Cattleyopsis Lem., Laeliopsis Lindl. & Paxton Cattleya Lindl., included Maelenia Dumort. Encyclia Hook., included Amblostoma Scheidw., Dinema Lindl., Hormidium (Lindl.) Heynh., Sulpitia Raf. Laelia Lindl., included Amalia Rchb. Myrmecophila Rolfe Rhyncholaelia Schltr. Schomburgkia Lindl. Sophronitis Lindl., included Lophoglottis Raf., Sophronia Lindl. Guarianthe Dressler & W.E. Higgins (2003) Alliance Barkeria Barkeria Knowles & Westc. Caularthron Raf., included Diacrium (Lindl.) Benth. Alliance Epidendrum Epidendrum Jacq., included Amphiglottis Salisb., Anacheilium Hoffmanns., Anocheil''' Hoffmanns. ex Rchb., Auliza Small, Coilostylis Raf., Didothion Raf., Diothonea Lindl., Dothilophis Raf., Doxosma Raf., Epicladium Small, Epidanthus L.O.Williams, Epidendropsis Garay & Dunst., Exophya Raf., Hemiscleria Lindl., Kalopternix Garay & Dunst., Lanium (Lindl.) Benth., Larnandra Raf., Microepidendrum Brieger (nom. inval.), Minicolumna Brieger (nom. inval.), Nanodes Lindl., Neolehmannia Kraenzl., Neowilliamsia Garay, Nyctosma Raf., Phadrosanthus Neck. ex Raf., Physinga Lindl., Pleuranthium Benth., Prosthechea Knowles & Westc., Pseudepidendrum Rchb.f., Seraphyta Fisch. & C.A.Mey., Spathiger Small, Stenoglossum Kunth, Tritelandra Raf. Alliance LeptotesLeptotes Lindl. Alliance NeocogniauxiaNeocogniauxia Schltr.Dilomilis Raf.Tomzanonia Nir Alliance hybrids × Brassocattleya hort. × Brassoepidendrum hort. × Brassolaeliocattleya hort. × Cattleytonia hort. × Cattlianthe J.M.H.Shaw × Epicattleya hort. × Epilaeliocattleya hort. × Hawkinsara hort. × Laeliocatarthron J.M.H.Shaw × Laeliocatonia hort. × Laeliocattleya Rolfe × Otaara hort. × Potinara hort. × Rhyncholaeliocattleya H.G.Jones × Schombocattleya hort. × Sophrocattleya Rolfe × Sophrolaelia hort. × Sophrolaeliocattleya hort. Subtribe MeiracyllinaeMeiracyllium Rchb.f. Subtribe Pleurothallidinae: These species have single leaves, non-pseudobulbous ramicauls, articulated ovary, deciduous from the pedicel. Genera: Acianthera, Acostaea, Anathallis, Barbosella, Barbrodria, Brachionidium, Chamelophyton, Condylago, Draconanthes, Dracula, Dresslerella, Dryadella, Echinosepala, Frondaria, Jostia, Lepanthes, Lepanthopsis, Luerella, Masdevallia, Myoxanthus, Octomeria, Ophidion, Pabstiella, Phloeophila, Platystele, Pleurothallis, Porroglossum, Restrepia, Restrepiella, Salpistele, Scaphosepalum, Specklinia, Stelis, Teagueia, Trichosalpinx, Trisetella, ZootrophionTribe Epipogieae Genera: Epipogium, StereosandraTribe Gastrodieae Subtribe Gastrodiinae Genera: Didymoplexis, GastrodiaSubtribe Nerviliinae Genus: NerviliaSubtribe Rhizanthellinae (sometimes in Diurideae) Genera: Cryptanthemis, RhizanthellaTribe Malaxideae Over 900 species Genera: Liparis, MalaxisTribe Neottieae About 100 species Subtribe Limodorinae Genera: Aphyllorchis, Cephalanthera, Epipactis, Limodorum Subtribe Listerinae Genus: ListeraTribe Podochileae Subtribe Bulbophyllinae (according to Garay & al. 1994) Genera: Acrochaene Lindl., Bulbophyllum Thouars, Chaseella Summerhays, Cirrhopetalum Lindl., Codonosiphon Schl., Drymoda Lindl., Epicrianthes Blume, Ferruminaria Garay, Hamer & Siegerist, Hapalochilus (Schlechter) Senghas, Ione Lindl., Mastigion Garay, Hamer & Siegerist , Monomeria Lindl., Monosepalum Schle, Osyricera Blume, Pedilochilus Schl., Rhytionanthos Garay,