Acampe (Acp)
Acampodorum (Apd) = Acampe x Armodorum
Acinbreea (Acba) = Acineta x Embreea
Acineta (Acn)
Aciopea (Aip) = Acineta x Stanhopea
Acrorchis (Arr)
Ada (Ada)
Adacidium (Adcm) = Ada x Oncidium
Adaglossum (Adgm) = Ada x Odontoglossum
Adamantinia (Adn)
Adapasia (Adps) = Ada x Aspasia
Adelopetalum (Adl)
Adioda (Ado) = Ada x Cochlioda
Aenhenria (Aen)
Aerangaeris (Arg) = Aerangis x Rangaeris
Aerangis (Aergs)
Aeranthes (Aerth)
Aerasconetia (Aescta) = Aerides x Ascocentrum x Neofinetia
Aeridachnis (Aerdns) = Aerides x Arachnis
Aerides (Aer)
Aeridisia (Aersa) = Aerides x Luisia
Aeriditis (Aerdts) = Aerides x Doritis
Aeridocentrum (Aerctm) = Aerides x Ascocentrum
Aeridochilus (Aerchs) = Aerides x Sarcochilus
Aeridofinetia (Aerf) = Aerides x Neofinetia
Aeridoglossum (Aergm) = Aerides x Ascoglossum
Aeridoglottis (Aegts) = Aerides x Trichoglottis
Aeridopsis (Aerps) = Aerides x Phalaenopsis
Aeridovanda (Aerdv) = Aerides x Vanda
Aeridovanisia (Aervsa) = Aerides x Luisia x Vanda
Agananthes (Agths) = Aganisia x Cochleanthes
Aganisia (Agn)
Aganopeste (Agt) = Aganisia x Lycaste x Zygopetalum
Agasepalum (Agsp) = Aganisia x Zygosepalum
Aitkenara (Aitk) = Otostylis x Zygopetalum x Zygosepalum
Alamania (Al)
Alantuckerara (Atc) = Neogardneria x Promenaea
Alexanderara (Alxra) = Brassia x Cochlioda x Odontoglossum x Oncidium
Aliceara (Alcra) = Brassia x Miltonia x Oncidium
Allenara (Alna) = Cattleya x Diacrium x Epidendrum x Laelia
Alphonsoara (Alph) = Arachnis x Ascocentrum x Vanda x Vandopsis
Amblostoma (Amb)
Amesangis (Am) = Aerangis x Amesiella
Amesiella (Ame)
Amesilabium (Aml) = Amesiella x Tuberolabiium
Amitostigma (Ami)
Anabarlia (Anb) = Anacamptis x Barlia
Anacamptis (Ant)
Anagymnorhiza (Agz) = Anacamptis x Dactylorhiza
Anaphorkis (Apk) = Ansellia x Graphorkis
Andreettara (Are) = Cochlioda x Miltonia x Odontoglossum x Zelenkoa
Andrewara (Andw) = Arachnis x Renanthera x Trichoglottis x Vanda
Angida (Agd) = Anguloa x Ida
Anglyda (Ayd) = Anguloa x Lycaste x Ida
Angraecentrum (Angctm) = Angraecum x Ascocentrum
Angraecostylis (Angsts) = Angraecum x Rhynchostylis
Angraecum (Angcm)
Angraecyrtanthes (Ancyth) = Aeranthes x Angraecum x Cyrtorchis
Angraeorchis (Angchs) = Angraecum x Cyrtorchis
Angrangis (Angrs) = Aerangis x Angraecum
Angranthellea (Angtla) = Aeranthes x Angraecum x Jumellea
Angranthes (Angth) = Aeranthes x Angraecum
Angreoniella (Angnla) = Angraecum x Oeoniella
Anguloa (Ang)
Angulocaste (Angcst) = Anguloa x Lycaste
Anoectochilus (Anct)
Anoectomaria (Anctma) = Anoectochilus x Haemaria
Ansellia (Aslla)
Ansidium (Asdm) = Ansellia x Cymbidium
Aracampe (Arcp) = Acampe x Arachnis
Arachnis (Arach)
Arachnocentron (Act) = Arachnis x Cleisocentron
Arachnoglossum (Arngm) = Arachnis x Ascoglossum
Arachnoglottis (Arngl) = Arachnis x Trichoglottis
Arachnopsirea (Aps) = Arachnis x Phalaenopsis x Sedirea
Arachnopsis (Arnps) = Arachnis x Phalaenopsis
Arachnostylis (Arnst) = Arachnis x Rhynchostylis
Aranda (Aranda) = Arachnis x Vanda
Aranthera (Arnth) = Arachnis x Renanthera
Areldia (Ael)
Arethusa (Aret)
Arizara (Ariz) = Cattleya x Domingoa x Epidendrum
Armanda (Ard) = Armodorum x Vanda
Armandacentrum (Adc) = Armodorum x Ascocentrum x Vanda
Armocentron (Art) = Armodorum x Cleisocentron
Armochilus (Arl) = Armodorum x Staurochilus
Armodorum (Amm)
Arpophyllum (Arpo)
Artorima (Arto)
Arundina (Ar)
Ascandopsis (Ascdps) = Ascocentrum x Vandopsis
Ascocenda (Ascda) = Ascocentrum x Vanda
Ascocentrum (Asctm)
Ascocleinetia (Ascln) = Ascocentrum x Cleisocentron x Neofinetia
Ascofadanda (Afd) = Ascocentrum x Seidenfadenia x Vanda
Ascofinetia (Ascf) = Ascocentrum x Neofinetia
Ascogastisia (Agsta) = Ascocentrum x Gastrochilus x Luisia
Ascoglossum (Ascgm)
Ascoglottis (Asgts) = Ascocentrum x Trichoglottis
Asconopsis (Ascps) = Ascocentrum x Phalaenopsis
Ascoparanthera (Apn) = Ascoglossum x Paraphalaenopsis x Renanthera
Ascorachnis (Ascns) = Arachnis x Ascocentrum
Ascoralda (Ald) = Ascocentrum x Esmeralda
Ascorhynopsis (Arp) = Ascocentrum x Paraphalaenopsis x Rhynchostylis
Ascovandoritis (Asvts) = Ascocentrum x Doritis x Vanda
Aspaleomnia (Alm) = Aspasia x Leochilus x Tolumnia
Aspasia (Asp)
Aspasiopsis (Apo) = Aspasia x Miltoniopsis
Aspasium (Aspsm) = Aspasia x Oncidium
Aspezia (Apz) = Aspasia x Rodriquezia
Aspioda (Asid) = Aspasia x Cochlioda
Aspodonia (Aspd) = Aspasia x Miltonia x Odontoglossum
Aspoglossum (Aspgm) = Aspasia x Odontoglossum
Aspomesa (Apm) = Aspasia x Gomesa
Aspopsis (Aso) = Aspasia x Psychopsis
Atopoglossum (Ato)
Australia (Ast) = Australorchis x Dockrillia
Ayubara (Ayb) = Aerides x Arachnis x Ascoglossum