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The information below was provided by Aaron Hicks and was 
extracted from The Handbook on Orchid Nomenclature and Registration

 
Abbreviations followed by * are not officially recognized by the
RHS. These are genera that have won AOS awards, but have not
been used in hybridization and therefore do not have an official
RHS abbreviation. These abbreviations were generated by using
the first letter of the Genus name, then using the first 5 consonants
(if appropriate) to achieve a 6 letter abbreviation.
 
        GENUS:                  ABBREV      FORMULA
 
        Acacallis                Acclls*    Natural
        Acampe                   Acp        Natural
        Acanthephippium
        Acinbreea                Acba       Acn x Emb
        Acineta                  Acn        Natural
        Acostaea
        Acriopsis
        Acrolophia
        Ada                      Ada        Natural
        Adacidium                Adcm       Ada x Onc
        Adaglossum               Adgm       Ada x Odm
        Adenoncos
        Adioda                   Ado        Ada x Cda
        Aerangis                 Aergs      Natural
        Aeranthes                Aerth      Natural
        Aerasconetia             Aescta     Aer x Asctm x Neof
        Aeridachnis              Aerdns     Aer x Arach
        Aerides                  Aer        Natural
        Aeridisia                Aersa      Aer x Lsa
        Aeriditis                Aerdts     Aer x Dor
        Aeridocentrum            Aerctm     Aer x Asctm
        Aeridochilus             Aerchs     Aer x Sarco
        Aeridofinetia            Aerf       Aer x Neof
        Aeridoglossum            Aergm      Aer x Ascgm
        Aeridoglottis            Aegts      Aer x Trgl
        Aeridopsis               Aerps      Aer x Phal
        Aeridovanda              Aerdv      Aer x V
        Aeridovanisia            Aervsa     Aer x Lsa x V
        Aganisia                 Agn        Natural
        Aitkenara                Aitk       Otst x Z x Zspm
        Alamania
        Alangreatwoodara         Agwa       Clx x Prom x A
        Alexanderara             Alxra      Brs x Cda x Odm x Onc
        Aliceara                 Alcra      Brs x Milt x Onc
        Allenara                 Alna       C x Diacm x Epi x L
        Alphonsoara              Alph       Arach x Asctm x V x Vdps
        Amblostoma                Amb        Natural
        Amesiella
        Amitostigma
        Amparoa
        Anacamptis
        Ancistrochilus
        Andrewara                Andw       Arach x Ren x Trgl x V
        Angraecentrum            Angctm     Angcm x Asctm
        Angracopsis
        Angraecostylis           Angsts     Angcm x Rhy
        Angraecum                Angcm      Natural
        Angraecyrtanthes         Ancyth     Aerth x Angcm X Cyrtcs
        Angraeorchis             Angchs     Angcm x Cyrtcs
        Angrangis                Angrs      Aergs x Angcm
        Angranthellea            Angtla     Aerth x Angcm x Jum
        Angranthes               Angth      Aerth x Angcm
        Angreoniella             Angnla     Angcm x Oenla
        Anguloa                  Ang        Natural
        Angulocaste              Angcst     Ang x Lyc
        Anoectochilus            Anct       Natural
        Anoectomaria             Anctma     Anct x Haem
        Anota
        Ansellia                 Aslla      Natural
        Ansidium                 Asdm       Aslla x Cym
        Antillanorchis
        Appendicula
        Aracampe                 Arcp       Acp x Arach
        Arachnanthe              Archnn*    Natural
        Arachnis                 Arach      Natural
        Arachnoglossum           Arngm      Arach x Ascgm
        Arachnoglottis           Arngl      Arach x Trgl
        Arachnopsis              Arnps      Arach x Phal
        Arachnostylis            Arnst      Arach x Rhy
        Aranda                   Aranda     Arach x V
        Aranthera                Arnth      Arach x Ren
        Arethusa                 Aret       Natural
        Arizara                  Ariz       C x Dga x Epi
        Arpophyllum
        Armodorum                Armdrm*    Natural
        Artorima
        Arundina
        Ascandopsis              Ascdps     Asctm x Vdps
        Ascocenda                Ascda      Asctm x V
        Ascocentrum              Asctm      Natural
        Ascocleinetia            Ascln      Asctm x Clctn x Neof
        Ascofinetia              Ascf       Asctm x Neof
        Ascogastisia             Agsta      Asctm x Gchls x Lsa
        Ascoglossum              Ascgm      Natural
        Ascoglottis              Asgts      Asctm x Trgl
        Asconopsis               Ascps      Asctm x Phal
        Ascorachnis              Ascns      Arach x Asctm
        Ascovandoritis           Asvts      Asctm x Dor x V
        Aspasia                  Asp        Natural
        Aspasium                 Aspsm      Asp x Onc
        Aspodia                  Asid       Asp x Cda
        Aspodonia                Aspd       Asp x Milt x Odm
        Aspoglossum              Aspgm      Asp x Odm
        Ayubara                  Ayb        Aer x Arach x Ascgm
        Bakerara                 Bak        Brs x Milt x Odm x Onc
        Baldwinara               Bdwna      Asp x Cda x Odm x Onc
        Banfieldara              Bnfd       Ada x Brs x Odm
        Barangis                 Brgs       Aergs x Brmb
        Baptirettia              Btta       Bapt x Comp
        Baptistoglossum          Bpgm            Baptistonia x Odontoglossum
        Baptistonia              Bapt       Natural
        Barangis                 Brgs            Aerangis x Barombia
        Barbosaara               Bbra       Cda x Gom x Odm x Onc
        Barbosella
        Bardendrum               Bard       Bark x Epi
        Barkeria                 Bark       Natural
        Barkonitis               Bknts      Bark x Soph
        Barombia                 Brmb       Natural
        Batemannia               Btmna      Natural
        Bateostylis              Btst       Btmna x Otst
        Baumannara               Bmnra      Comp x Odm x Onc
        Beadlea
        Beallara                 Bllra      Brs x Cda x Milt x odm
        Beardara                 Bdra       Asctm x Dor x Phal
        Beclardia
        Benzingia
        Bifrenaria               Bif        Natural
        Bifrenidium              Bifdm      Bif x Zwr
        Bifreniella              Bifla      Bif x Rud
        Biltonara                 Bilt            Ada x Cda x Milt x Odm
        Binotia
        Bishopara                Bish       Bro x C x Soph
        Blackara                 Blkr       Asp x Cda x Milt  x Odm
        Blephariglottis          Blphrg*    Natural
        Bletia                   Bletia     Natural
        Bletilla                 Ble        Natural
        Bloomara                 Blma       Bro x Lps x Ttma
        Bokchoonara              Bkch       Arach x Asctm x Phal x V
        Bollea                   Bol        Natural
        Bolleanthes                 Blth            Bollea x Cochleanthes
        Bollopetalum             Blptm      Bol x Z
        Bolusiella
        Bonatea
        Bothriochilus
        Bovornara                Bov        Arach x Asctm x Rhy x V
        Braasiella
        Brachionidium
        Brachtia
        Brachycorythis
        Bradeara                 Brade      Comp x Gom x Rdza
        Brapasia                 Brap       Asp x Brs
        Brassada                 Brsa       Ada x Brs
        Brassavola               B          Natural
        Brassia                  Brs        Natural
        Brassidium               Brsdm      Brs x Onc
        Brassioda                Broda      Brs x Cda
        Brassocattleya           Bc         B x C
        Brassochilus             Brchs      Brs x Lchs
        Brassodiacrium           Bdia       B x Diacm
        Brassoepidendrum         Bepi       B x Epi
        Brassoepilaelia          Bpl        B x Epi x L
        Brassokeria              Brsk       Bark x B
        Brassolaelia             Bl         B x L
        Brassolaeliocattleya     Blc        B x C x L
        Brassomicra                 Bmc            B x Ttma
        Brassosophronitis        Bnts       B x Soph
        Brassotonia              Bstna      B x Bro
        Brilliandeara                            Asp x Brs x Cda x Milt x Odm x Onc
        Bromheadia
        Broughtonia              Bro        Natural
        Brownara                 Bwna       Bro x C x Diacm
        Brummittara              Brum       Comp x Odm x Rdza
        Buiara                   Bui        Bro x C x Epi x L x Soph
        Bulbophyllum             Bulb       Natural
        Burkhardtara             Bktra      Lchs x Odm x Onc x Rdza
        Burkillara               Burk       Aer x Arach x V
        Burrageara               Burr       Cda x Milt x Odm x Onc
        Cadetia
        Caladenia                Calda      Natural
        Calanthe                 Cal        Natural
        Caloarethusa             Clts       Aret x Cpg
        Calopogon                Cpg        Natural
        Caluera
        Calypso
        Camorotis
        Campbellara              Cmpba      Odm x Onc x Rdza
        Campylocentrum
        Canium
        Campanemia
        Carpenterara             Cptra      Bapt x Odm x Onc
        Carterara                Ctra       Aer x Ren x Vdps
        Casoara                  Csr        B x Bro x Lps
        Catamodes                Ctmds      Ctsm x Morm
        Catanoches               Ctnchs     Ctsm x Cyc
        Catasandra               Ctsda      Ctsm x Gal
        Catasetum                Ctsm       Natural
        Cattkeria                Cka        Bark x C
        Cattleya                 C          Natural
        Cattleyopsis             Ctps       Natural
        Cattleyopsisgoa          Ctpga      Ctps x Dga
        Cattleyopsistonia        Ctpsta     Bro x Ctps
        Cattleytonia             Ctna       Bro x C
        Cattotes                 Ctts       C x Lpt
        Caucaea
        Caularthron              Clrthr*    Natural
        Centrogenium
        Centroglossa
        Centropetalum
        Cephalantheropsis
        Ceratocentron                 Crtn
        Ceratochilus
        Ceratograecum                 Crgm
        Ceratostylis
        Chamaeangis
        Charlesworthara          Cha        Cda x Milt x Onc
        Charlieara               Charl      Rhy x V x Vdps
        Chaubardia
        Chaubardiella
        Chieradenia
        Chelonistele
        Chewara                  Chew       Aer x Ren x Rhy
        Chilocentrum             Chctm      Asctm x Chsch
        Chiloglottis
        Chiloschista             Chsch      Natural
        Chondrobollea            Chdb       Bol x Chdrh
        Chondrorhyncha           Chdrh      Natural
        Christieara              Chtra      Aer x Asctm x V
        Chuanyenara              Chnya      Arach x Ren x Rhy
        Chyletia                 Chlt       Natural
        Chysis                   Chy        Natural
        Chytroglossa
        Cirrhaea                            Natural
        Cirrhopea                 Chpa            Cirrhaea x Stan
        Cirrhopetalum            Cirr       Natural
        Cirrhophyllum            Crphm      Bulb x Cirr
        Cischostalix             Cstx       Cisch x Sgmx
        Cischweinfia             Cisch      Natural
        Cleisocalpa              Clclp      Clctn x Pmcpa
        Cleisocentron            Clctn      Natural
        Cleisodes                Clsd       Aer x Clctn
        Cleisofinetia            Clfta      Clctn x Neof
        Cleisomeria
        Cleisonopsis             Clnps      Clctn x Phal
        Cleisopera               Clspa      Cleis x Micr
        Cleisoquetia             Clq        Clctn x Rbq
        Cleisostoma              Cleis      Natural
        Cleisostylis             Clsty      Clctn x Rhy
        Cleisothera              Cltha      Cleis x Pthia
        Clowesia                 Clow       Natural
        Cochella                 Chla       Cnths x Mdcla
        Cochleanthes             Cnths      Natural
        Cochlecaste              Cccst      Cnths x Lyc
        Cochlenia                Cclna      Snths x Stenia
        Cochleottia              Colta      Cnths x Glta
        Cochlepetalum            Ccptm      Cnths x Z
        Cochlioda                Cda        Natural
        Coelia
        Coelopsis
        Coelogyne
        Colasepalum                 Clsm            Clx x Zspm
        Colaste                  Cste       Clx x Lyc
        Colax                    Clx        Natural
        Coleottia                 Cta            Clx x Glta
        Colmanara                Colm       Milt x Odm x Onc
        Comparettia              Comp       Natural
        Conphronitis             Conph      Const x Soph
        Constantia               Const      Natural
        Cookara                  Cook       Bro x C x Diacm x L
        Corallorhiza                            Natural
        Coryanthes               Crths      Natural
        Corybas
        Coryhopea                Crhpa      Crths x Stan
        Corymborkis
        Cottonia
        Cranichis
        Crawshayara              Craw       Asp x Brs x Milt x Onc
        Crybe
        Cryptarrhena
        Cryptocentrum
        Cryptochilus
        Cryptophoranthus
        Cryptopus                Crypt      Natural
        Cryptostylis
        Cuitlauzina
        Cyclopogon
        Cycnoches                Cyc        Natural
        Cycnodes                 Cycd       Cyc x Morm
        Cymasetum                 Cymst      Ctsm x Cym
        Cymbidiella              Cymla      Natural
        Cymbidium                Cym        Natural
        Cymphiella               Cymph      Cym x Eul
        Cynorkis                 Cyn        Natural
        Cyperorchis              Cporch     Natural
        Cypholoron
        Cypripedium              Cyp        Natural
        Cyrtellia                Cyrtl      Aslla x Cyrt
        Cyrtochilum              Cyrtch*    Natural
        Crytoglottis
        Cyrtopodium              Cyrt       Natural
        Cyrtorchis               Cyrtcs     Natural
        Dactylorhiza             Dact       Natural
        Darwinara                Dar        Asctm x Neof x Rhy x V
        Debruyneara              Dbra       Asctm x Lsa x V
        Degarmoara               Dgmra      Brs x Milt x Odm
        Dekensara                Dek        B x C x Schom
        Dendrobium               Den        Natural
        Dendroberia              Denga      Den x Flkga
        Dendrochilum
        Dendrogeria                 Denga
        Dendrophylax
        Desmotrichium
        Devereuxara              Dvra       Asctm x Phal x V
        Diabroughtonia           Diab       Bro x Diacm
        Diacattleya              Diaca      C x Diacm
        Diacrium                 Diacm      Natural
        Diadenium
        Diakeria                 Dkra       Bark x Diacm
        Dialaelia                Dial       Diacm x L
        Dialaeliocattleya        Dialc      C x Diacm x L
        Dialaeliopsis            Dialps     Diacm x Lps
        Diaphanangis             Dpgs       Aergs x Dpthe
        Diaphananthe             Dpthe      Natural
        Dichaea
        Dieselara                Dsla       L x Schom x Soph
        Dillonara                Dill       Epi x L x Schom
        Dimorophorchis
        Diothonaea
        Diplocaulobium
        Diplomeris
        Diplonopsis              Dpnps      Dpra x Phal
        Diploprora               Dpra       Natural
        Dipteranthus
        Disa                     Disa       Natural
        Dispersis
        Diuris                   Diuris     Natural
        Domindesmia              Ddma       Dga x Hex
        Domingoa                 Dga        Natural
        Domintonia               Dmtna      Bro x Dga
        Dominyara                Dmya       Asctm x Lsa x Neof x Rhy
        Domliopsis               Dmlps      Dga x Lps
        Doncollinara             Dclna      Cda x Odm x Rdza
        Dorandopsis              Ddps       Dor x Vdps
        Doricentrum              Dctm       Asctm x Dor
        Doriella                 Drlla      Dor x King
        Doriellaopsis            Dllps      Dor x King x Phal
        Dorifinetia              Dfta       Dor x Neof
        Doriglossum              Drgm       Ascgm x Dor
        Dorisia                         Drsa            Dor x Lsa
        Doristylis               Dst        Dor x Rhy
        Doritaenopsis            Dtps       Dor x Phal
        Doritis                  Dor        Natural
        Dorthera                 Dtha       Dor x Ren
        Dossinia                 Doss       Natural
        Dossinimaria             Dsma       Doss x Haem
        Downsara                 Dwsa       Agn x Btmna x Otst x Zspm
        Dracula                  Drac       Natural
        Dracuvallia              Drvla      Drac x Masd
        Dresslerara              Dres       Ascgm x Phal x Ren
        Dressleria
        Dryadella
        Drymoanthus              Dry        Natural
        Duggerara                Dugg       Ada x Brs x Milt
        Dunnara                  Dnna       Bro x Ctps x Dga
        Dunningara               Dngra      Asp x Milt x Onc
        Durutyara                Dtya       Btmna x Osts x Z x Zspm
        Earina
        Eastonara                Eas        Asctm x Gchls x V
        Edeara                   Edr        Arach x Phal x Ren x Vdps
        Elearethusa                 Elsa       Aret x Elo
        Eleorchis                 Elo
        Elepogon                 Elp        Cpg x Elo
        Elleanthus
        Eltroplectis
        Embreea                  Emb        Natural
        Encyclia                 Encycl*    Natural
        Ephemerantha             Ephem      Natural
        Epibarkiella             Epbkl      Bark x Epi x Ngl
        Epiblastus
        Epibrassonitis           Epbns      B x Epi x Soph
        Epicatonia               Epctn      Bro x C x Epi
        Epicattleya              Epc        C x Epi
        Epidella                 Epdla      Epi x Ngl
        Epidendrum               Epi        Natural
        Epidiacrium              Epdcm      Diacm x Epi
        Epigeneium
        Epiglottis               Epgl       Epi x Scgl
        Epigoa                   Epg        Dga x Epi
        Epilaelia                Epl        Epi x L
        Epilaeliocattleya        Eplc       C x Epi x L
        Epilaeliopsis            Eplps      Epi x Lps
        Epileptovola                 Elva       B x Epi x Lpt
        Epimicra                 Emc        Epi x Ttma
        Epiopsis                 Eps        Ctps x Epi
        Epipactis                Epcts      Natural
        Epiphronitis             Ephs       Epi x Soph
        Epistoma                 Epstm      Amb x Epi
        Epitonia                 Eptn       Bro x Epi
        Eria
        Eriopsis
        Ernestara                Entra      Phal x Ren x Vdps
        Erycina                  Ercn       Natural
        Eryidium                 Erdm       Ercn x Onc
        Erythrodes
        Esmeralda                Esmrls*    Natural
        Euanthe                  Enth*      Natural
        Eulocymbidiella          Eucmla     Cymla x Eul
        Eulophia                 Eupha      Natural
        Eulophidium
        Eulophiella              Eul        Natual
        Euryangis                Eugs       Aergs x Echn
        Eurychone                Echn       Natural
        Eurygraecum              Eugcm      Angcm x Echn
        Eurynopsis               Eunps      Echn x Phal
        Eurystyles
        Fergusonara              Ferg       B x C x L x Schom x Soph
        Fernandezia
        Fialaara                 Fia        Bro x C x L x Lps
        Flickingeria             Flkga      Natural
        Fordyceara                 Fdca            Bro x C x Lps x Ttma
        Forgetara                Fgtra      Asp x Brs x Milt
        Freedara                 Frda       Ascgm x Ren x Vdps
        Frondaria
        Fujioara                 Fjo        Asctm x Trgl x V
        Fujiwarara               Fjw        B x C x Lps
        Galeandra                Gal        Natural
        Galeansellia             Gslla      Aslla x Gal
        Galeopetalum             Gptm       Gtla x Z
        Galeosepalum             Glspm      Glta x Zspm
        Galeottia                Glta       Natural
        Gastisia                 Gsta       Gchls x Lsa
        Gastisocalpa             Gscpa      Gchls x Lsa x Pmcpa
        Gastritis                Gtts       Dor x Gchls
        Gastrochiloglottis       Gchgl      Gchls x Trgl
        Gastrochilus             Gchls      Natural
        Gastrorchis
        Gastrosarcochilus        Gsarco     Gchls x Sarco
        Gastrostoma                 Gstm
        Gastrothera              Gsrth      Gchls x Ren
        Gauntlettara             Gtra       Bro x Ctps x Lps
        Geodorum
        Georgeblackara           Gbka       Comp x Lchs x Onc x Rdza
        Gladysyeeara                 Glya      B x Bro x C x Ctps x Diacm x Epi x L
        Glanzara                 Glz            Dor x Rhy x Vdps
        Goffara                  Gfa        Lsa x Rhy x V
        Gohartia                 Ghta       Gom x Lhta
        Gomada                   Gmda       Ada x Gom
        Gomesa                   Gom        Natural
        Gomettia                 Gmtta      Comp x Gom
        Gomochilus               Gmch       Gom x Lcs
        Gomoglossum              Gmgm       Gom x Odm
        Gongora                  Gga        Natural
        Goodaleara               Gdlra      Brs x Cda x Milt x Odm x Onc
        Goodyera                 Natural
        Gottererara              Gott       Asctm x Ren x Vdps
        Grammangis
        Grammatocymbidium        Grcym      Cym x Gram
        Grammatoheadia                 Grda            Brom x Gram
        Grammatophyllum          Gram       Natural
        Grammatopodium           Grtp       Cyrt x Gram
        Graphiella               Grpla      Cymla Grks
        Graphorkis               Grks       Natural
        Grobya
        Gudrunia
        Gumara                         Gum        Diacm x Epi x L
        Habenaria                Hab        Natural
        Haemaria                 Haem            Natural
        Hagerara                 Hgra       Dor x Phal x V
        Hagsatera
        Hamelwellsara            Hmwsa      Agn x Btmna x Otst x Z x Zspm
        Hamiltonara                 Hmtn            Ada x Brs x Cda x Odm
        Hanesara                 Han        Aer x Arach x Neof
        Haraella
        Hartara                  Hart       Bro x L x Soph
        Hartwegia
        Hasegawaara              Hasgw      B x Bro x C x L x Soph
        Hattoriara               Hatt       B x Bro x C x Epi x L
        Hausermannara            Haus       Dor x Phal x Vdps
        Hawaiiara                Haw        Ren x V x Vdps
        Hawkesara                Hwkra      C x Ctps x Epi
        Hawkinssara              Hknsa      Bro x C x L x Soph
        Helcia                   Hlc        Natural
        Hellerorchis
        Helpilia                 Hpla       Hlc x Trpla
        Herbertara               Hbtr       C x L x Schom x Soph
        Hexadesmia               Hex        Natural
        Hexisea                  Hxsa       Natural
        Higashiara               Hgsh       C x Diacm x L x Soph
        Hildaara                 Hdra       Bro x Lps x Schom
        Himoriara                Hmra       Asctm x Phal x Rhy x V
        Hintonella
        Hispanella
        Holcoglossum             Hlcgl*     Natural
        Holttumara               Holtt      Arach x Ren x V
        Homalopetalum
        Hookerara                Hook       B x C x Diacm
        Houlletia
        Howeara                  Hwra       Lchs x Onc x Rdza
        Hueylihara               Hylra      Neof x Ren x Rhy
        Hugofreedara             Hgfda      Asctm x Dor x King
        Hummelara                Humm       Bark x B x Epi
        Huntleanthes             Hnths      Cnths x Hya
        Huntleya                 Hya
        Hybochilus
        Hygrochilus              Hygrch*    Natural
        Hyntleya                 Hya        Natural
        Inobulbon
        Ione
        Ionettia                 Intta      Comp x Inps
        Ionocidium               Incdm      Inps x Onc
        Ionopsis                 Inps       Natural
        Irvingara                Irv        Arach x Ren x Trgl
        Isabelia
        Isaoara                  Isr        Aer x Asctm x Phal x V
        Isochilus
        Iwanagara                Iwan       B x C x Diacm x L
        Izumiara                 Izma       C x Epi x L x Schom x Soph
        Jacquiniella
        Jewellara                Jwa        Bro x C x Epi x L
        Jimenezara               Jmzra      Bro x L x Lps
        Joannara                 Jnna       Ren x Rhy x V
        Johnkellyara             Jkl        Brs x Lchs x Onc x Rdza
        Johnyeeara               Jya        B x C x Epi x L x Schom x Soph
        Jumanthes                Jmth       Aerth x Jum
        Jumellea                 Jum        Natural
        Kagawara                 Kgw        Asctm x Ren x V
        Kalimpongia
        Kanzerara                Kza        Chdrh x Prom x Z
        Kawamotoara              Kwmta      B x C x Dga x Epi x L
        Keferanthes              Kefth      Cnths x Kefst
        Kefersteinia             Kefst      Natural
        Kegeliella
        Kingidium                Kngdm*     Natural
        Kingiella                King       Natural
        Kirchara                 Kir        C x Epi x L x Soph
        Klehmara                 Klma       Diacm x L x Schom
        Knappara                 Knp        Asctm x Rhy x V x Vdps
        Knudsonara               Knud       Asctm x Neof x Ren x Rhy x V
        Koellensteinia
        Komkrisara               Kom        Asctm x Ren x Rhy
        Konantzia
        Kraussara                Krsa       Bro x C x Diacm x Lps
        Kriegerara                 Kgra            Ada x Cda x Odm x Onc
        Lacaena
        Laelia                   L          Natural
        Laeliocatonia            Lctna      Bro x C x L
        Laeliocattkeria          Lcka       Bark x C x L
        Laeliocattleya           Lc         C x L
        Laeliokeria              Lkra       Bark x L
        Laeliopleya              Lpya       C x Lps
        Laeliopsis               Lps        Natural
        Laelonia                 Lna        Bro x L
        Lagerara                 Lgra       Asp x Cda x Odm
        Lancebirkara             Lbka       Bol x Cnths x Pes
        Lanium
        Lankesterella
        Lauara                   Lauara     Ascgm x Ren x Rhy
        Laycockara               Lay        Arach x Phal x Vdps
        Leaneyara                 Lnya            Asctm x Rhy x Sarco x V
        Leeara                   Leeara     Arach x V x Vdps
        Lemaireara               Lemra      Bro x Ctps x Epi
        Lemboglossum
        Leochilus                Lchs       Natural
        Leocidium                Lcdm       Lchs x Onc
        Leocidmesa               Lcmsa      Gom x Lchs x Onc
        Leocidpasia              Lcdpa      Asp x Lchs x Onc
        Lepanopsis                 Lep            Lths x Lpths
        Lepanthes                Lths       Natural
        Lepanthopsis                 Lpths            Natural
        Leptodendrum             Lptdm      Epi x Lpt
        Leptokeria               Lptka      Bark x Lpt
        Leptolaelia              Lptl       L x Lpt
        Leptotes                 Lpt        Natural
        Leptovola                Lptv       B x Lpt
        Leslieara                Lesl       Bro x Ctps x Diacm x Epi
        Lewisara                 Lwsra      Aer x Arach x Asctm x V
        Liaopsis                 Liaps      L x Lps
        Lichtara                 Licht      Dor x Gchls x Phal
        Liebmanara               Lieb       Asp x Cda x Onc
        Lillochilus
        Limara                   Lim        Arach x Ren x Vdps
        Limatodes                Limtd      Natural
        Lindleyella
        Lioponia                 Lpna       Bro x Lps
        Liparis
        Listrostachys
        Lockcidium               Lkcdm      Lhta x Onc
        Lockcidmesa                 Lkda            Gal x Onc
        Lockhartia               Lhta       Natural
        Lockochilettia           Lkctta     Comp x Lchs x Lhta
        Lockochilus              Lkchs      Lchs x Lhta
        Lockogochilus            Lkgch      Gom x Lchs x Lhta
        Lockopilia               Lckp       Lhta x Trpla
        Lockostalix              Lkstx      Lhta x Sgmx
        Lophiaris
        Lowara                   Low        B x L x Soph
        Lowsonara                Lwnra      Aer x Asctm x Rhy
        Luascotia                Lscta      Asctm x Lsa x Neof
        Ludisia                  Lds*       Natural
        Lueddemannia
        Luicentrum               Lctm       Asctm x Lsa
        Luichilus                Luic       Lsa x Sarco
        Luinetia                 Lnta       Lsa x Neof
        Luinopsis                Lnps       Lsa x Phal
        Luisanda                 Lsnd       Lsa x V
        Luisia                   Lsa        Natural
        Luistylis                Lst        Lsa x Rhy
        Luivanetia               Lvta       Lsa x Neof x V
        Lutherara                Luth       Phal x Ren x Rhy
        Lycaste                  Lyc        Natural
        Lycasteria               Lystr      Bif x Lyc
        Lycomormium
        Lymanara                 Lynra      Aer x Arach x Ren
        Lyonara                  Lyon       C x L x Soph
        Maccoyara                Mcyra      Aer x V x Vdps
        Macekara                 Maka       Arach x Phal x Ren x V x Vdps
        Maclellanara             Mclna      Brs x Odm x Onc
        Maclemoreara             Mclmra     B x L x Schom
        Macodes                  Mac        Natural
        Macomaria                Mcmr       Haem x Mac
        Macradenia               Mcdn       Natural
        Macradesa                Mcdsa      Gom x Mcdn
        Macroclinium
        Mailamaiara              Mai        C x Diacm x L x Schom
        Malaxis                                    Nat
        Masdevallia              Masd       Natural
        Masonara                 Msna   Agn x Btmna x Clx x Otst x Prom x Zspm
        Matsudaara               Msda       Bark x C x L x Soph
        Maunderara                 Mnda            Ada x Cda x Milt x Odm x Onc
        Maymoirara               Mymra      C x Epi x Lps
        Maxillacaste             Mxcst      Lyc x Max
        Maxillaria               Max        Natural
        Maxilobium               Mxlb       Max x Xyl
        Maymoirara                 Mymra            C x Epi x Lps
        Mediocalcar
        Megaclinum
        Meiracyllium             Mrclm      Natural
        Menadenium               Mndnm*     Natural
        Mendoncella              Mdcla      Natural
        Mendosepalum             Mdspl      Mdcla x Zspm
        Mesospinidium
        Mexicoa                  Mxc*       Natural
        Mexipedium                            Natural
        Micholitzara             Mchza      Aer x Asctm x Neof x V
        Microcoelia
        Micropera                Micr       Natural
        Milpasia                 Mpsa       Asp x Milt
        Milpilia                 Mpla       Milt x Trpla
        Miltada                  Mtad       Ada x Milt
        Miltadium                Mtadm      Ada x Milt x Onc
        Miltarettia                 Mtta            Comp x Milt
        Miltassia                Mtssa      Brs x Milt
        Miltistonia              Mtst       Bapt x Milt
        Miltonia                 Milt       Natural
        Miltonidium              Mtdm       Milt x Onc
        Miltonioda               Mtda       Cda x Milt
        Miltonioides             Mltnds*    Natural
        Miltoniopsis             Mltnps*    Natural
        Mischobulbon
        Mizutara                 Miz        C x Diacm x Schom
        Moirara                  Moir       Phal x Ren x V
        Mokara                   Mkra       Arach x Asctm x V
        Monnierara               Monn       Ctsm x Cyc x Morm
        Monomeria
        Moonara                  Mnra       Aer x Asctm x Neof x Rhy
        Mormodes                 Morm       Natural
        Mormolyca                Mlca       Natural
        Morrisonara                 Mrsa            Ada x Milt x Odm
        Moscosoara               Mscra      Bro x Epi x Lps
        Myoxanthus
        Myrmecophila
        Mystacidium              Mycdm      Natural
        Nageliella               Ngl        Natural
        Nakagawaara              Nkgwa      Aer x Dor x Phal
        Nakamotoara              Nak        Asctm x Neof x V
        Nanodes
        Nashara                  Nash       Bro x Ctps x Diacm
        Naugleara                Naug       Asctm x Ascgm x Ren
        Neobathiea               Nbth       Natural
        Neobatopus               Nbps       Crypt x Nbth
        Neobenthamia
        Neocogniauxia
        Neodryas
        Neofinetia               Neof       Natural
        Neogardneria                 Ngda
        Neoglossum               Neogm      Ascgm x Neof
        Neograecum               Ngrcm      Asgcm Neof
        Neokoehleria
        Neolauchea
        Neolehmannia
        Neomoorea
        Neostylis                Neost      Neof x Rhy
        Neogardneria             Ngda       Natural
        Nephelaphyllum
        Ngara                    Ngara      Arach x Ascgm x Ren
        Nobleara                 Nlra       Aer x Ren x V
        Nonaara                  Non        Aer x Ascgm x Ren
        Nornahamamotoara         Nhmta      Aer x Rhy x Vdps
        Northenara               Nrna       C x Epi x L x Schom
        Norwoodara               Nwda       Brs x Milt x Onc x Rdza
        Notylettia               Ntlta      Comp x Nlt
        Notylia                  Ntl        Natural
        Notylidium               Ntldm      Ntl x Onc
        Notylopsis               Ntlps      Inps x Ntl
        Oberonia
        Octomeria
        Odontioda                Oda        Cda x Odm
        Odontobrassia            Odbrs      Brs x Odm
        Odontocidium             Odcdm      Odm x Onc
        Odontoglossum            Odm        Natural
        Odontonia                Odtna      Milt x Odm
        Odontopolia              Odpla      Odm x Trpla
        Odontorettia             Odrta      Comp x Odm
        Oecoclades
        Oeonia
        Oeoniella                Oenla      Natural
        Oerstedella              Orstdl*    Natural
        Okaara                   Okr        Asctm x Ren x Rhy x V
        Oliveriana
        Oncidenia                Oncna      Mcdn x Onc
        Oncidesa                 Oncsa      Gom x Onc
        Oncidettia               Onctta     Comp x Onc
        Oncidiella               Onclla     Onc x Rdzlla
        Oncidioda                Oncda      Cda x Onc
        Oncidium                 Onc        Natural
        Oncidpilia               Oncpa      Onc x Trpla
        Onoara                   Onra       Asctm x Ren x V x Vdps
        Ophrys
        Opsisanda                Opsis      V x Vdps
        Opsiscattleya            Opsct      C x Ctps
        Opsistylis               Opst       Rhy x Vdps
        Orchis                   Orchis     Natural
        Orchiserapias            Orsps      Orchis x Srps
        Orleansis
        Ornithidium
        Ornithocephalus
        Ornithochilus
        Ornithocidium            Orncm      Onc x Orpha
        Ornithophora             Orpha      Natural
        Osmentara                Osmt       Bro x C x Lps
        Osmoglossum              Osmgls*    Natural
        Otaara                   Otr        B x Bro x C x L
        Otocolax                 Otcx       Clx x Otst
        Otoglossum               Otglss*    Natural
        Otonisia                 Otnsa      Agn x Otst
        Otosepalum               Otspm      Otst x Zspm
        Otostylis                Otst       Natural
        Owensara                 Owsr       Dor x Phal x Ren
        Pabstia                  Pab        Natural
        Pageara                  Pga        Asctm x Lsa x Rhy x V
        Palmerara                Plmra      Btmna x Otst x Zspm
        Palumbina
        Panisea
        Pantapaara               Pntp       Ascgm x Ren x V
        Paphinia
        Paphiopedilum            Paph       Natural
        Papilionanthe            Pplnnt*    Natural
        Papperitzia
        Parachilus               Prcls      Psarco x Sarco
        Paradisanthus            Pdsnth     Natural
        Paraphalaenopsis         Prphln*    Natural
        Parasarcochilus          Psarco     Natural
        Parnataara               Parn       Aer x Arach x Phal
        Paulara                  Plra       Asctm x Dor x Phal x Ren x V
        Paulsenara               Plsra      Aer x Arach x Trgl
        Pecteilis                Pctls*     Natural
        Pegonia
        Pehara                   Peh        Aer x Arach x V x Vdps
        Pelacentrum              Plctm      Asctm x Pthia
        Pelachilus               Pelcs      Gchls x Pthia
        Pelastylis               Pelst      Pthia x Rhy
        Pelatantheria            Pthia      Natural
        Pelatoritis              Pltrs      Dor x Pthia
        Pelexia
        Pepeara                         Ppa            Asctm x Dor x Phal x Ren
        Peristeria
        Perreiraara              Prra       Aer x Rhy x V
        Pescarhyncha                 Psra            Chdrh x Pes
        Pescatobollea            Psbol      Bol x Pes
        Pescatorea               Pes        Natural
        Pescawarrea              Psw        Pes x Wra
        Pescoranthes             Psnth      Cnths x Pes
        Pettitara                Pett       Ada x Brs x Onc
        Phaiocalanthe            Phcal      Cal x Phaius
        Phaiocymbidium           Phcym      Cym x Phaius
        Phaius                   Phaius     Natural
        Phalaenopsis             Phal       Natural
        Phalaerianda             Phda       Aer x Phal x V
        Phalandopsis             Phdps      Phal x Vdps
        Phalanetia               Phnta      Neof x Phal
        Phaliella                Phlla      King x Phal
        Phillipsara                 Phill            Cnths x Stenia x Z
        Pholidota
        Phragmipaphium           Phrphm     Paph x Phrag
        Phragmipedium            Phrag      Phrag
        Phreatia
        Phymatidium
        Physosiphon
        Piperia
        Platanthera
        Platyclinis
        Platyrhiza
        Platystele
        Plectochilus             Plchs      Plrhz x Sarco
        Plectorrhiza             Plrhz      Natural
        Plectrelgraecum          Plgcm      Angcm x Plmths
        Plectrelminthus          Plmths     Natural
        Plectrophora
        Pleione                         Pln
        Pleurobotryum
        Pleurothallis                 Pths
        Pleurothallopsis
        Podangis
        Pogonia
        Polycycnis               Pcn        Natural
        Polyotidium
        Polyrrhiza
        Polystachya              Pol        Natural
        Pomacentrum              Pmctm      Asctm x Pmcpa
        Pomatisia                Pmtsa      Lsa x Pmcpa
        Pomatocalpa              Pmcpa      Natural
        Ponerorchis
        Ponthieva
        Pooleara                 Polra            Asctm x Ascgm x Phal x Ren
        Porpax
        Porroglossum                 Prgm            Natural
        Porrovallia                 Pvla            Masd x Prgm
        Potinara                 Pot        B x C x L x Soph
        Prescottia
        Prolax                   Prx        Clx x Prom
        Promenaea                Prom       Natural
        Promenanthes                 Prths      Cnths x Prom
        Propetalum               Pptm       Prom x Z
        Pseuderia
        Pseudolaelia
        Psychilis
        Psychopsis               Psychp*    Natural
        Psygmorchis
        Pteroceras               Ptrcrs*    Natural
        Pterostemma
        Pterostylis              Ptst       Natural
        Quekettia
        Raganara                 Rgn        Ren x Trgl x V
        Ramasamyara              Rmsya      Arach x Rhy x V
        Rangaeris
        Recchara                 Recc       B x C x L x Schom
        Renades                  Rnds       Aer x Ren
        Renafinanda              Rfnda      Neof x Ren x V
        Renaglottis              Rngl       Ren x Trgl
        Renancentrum             Rnctm      Asctm x Ren
        Renanda                  Rnnd*      Arach x Ren x V
        Renanetia                Rnet       Neof x Ren
        Renanopsis               Rnps       Ren x Vdps
        Renanstylis              Rnst       Ren x Rhy
        Renanatanda              Rntda      Ren x V
        Renanthera               Ren        Natural
        Renantherella            Rnnthg*    Natural
        Renanthoglossum          Rngm       Ascgm x Ren
        Renanthopsis             Rnthps     Phal x Ren
        Renaparanopsis                            Ren x Paraphalaenopsis
        Restrepia                Rstp       Natural
        Restrepiella
        Restrepiopsis
        Rhinerrhiza              Rhin       Natural
        Rhinochilus              Rhincs     Rhin x Sarco
        Rhynchocentrum           Rhctm      Asctm x Rhy
        Rhyncholaelia            Rhynch*    Natural
        Rhynchonopsis            Rhnps      Phal x Rhy
        Rhynchorides             Rhrds      Aer x Rhy
        Rhynchostylis            Rhy        Natural
        Rhynchovanda             Rhv        Rhy x V
        Rhyndoropsis             Rhdps      Dor x Phal x Rhy
        Richardmizutaara         Rcmza      Asctm x Phal x Vdps
        Richardsonara            Rchna      Asp x Odm x Onc
        Ridleyara                Ridl       Arach x Trgl x V
        Robifinetia              Rbf        Neof x Rbq
        Robinara                 Rbnra      Aer x Asctm x Ren x V
        Robiquetia               Rbq        Natural
        Robostylis                 Rbst            Rhy x Rbq
        Roccaforteara                 Rcfta            Asp x Brs x Cda x Odm
        Rodrassia                Rdssa      Brs x Rdza
        Rodrettia                Rdtta      Comp x Rdza
        Rodrettiopsis            Rdtps      Comp x Inps x Rdza
        Rodrichilus              Rdchs      Lchs x Rdza
        Rodricidium              Rdcm       Onc x Rdza
        Rodridenia               Rden       Mcdn x Rdza
        Rodriglossum             Rdgm       Odm x Rdza
        Rodriguezia              Rdza       Natural
        Rodrigueziella           Rdzlla     Natural
        Rodrigueziopsis
        Rodriopsis               Rodps      Inps x Rdza
        Rodritonia               Rdtna      Milt x Rdza
        Rolfeara                 Rolf       B x C x Soph
        Ronnyara                 Rnya       Aer x Asctm x Rhy x V
        Rosakirschara            Rskra      Asctm x Neof x Ren
        Roseara                  Rsra       Dor x King x Phal x Ren
        Rossioglossum            Rssgls*    Natural
        Rothara                  Roth       B x C x Epi x L x Soph
        Rotorara                 Rtra       Bol x Cnths x Kefst
        Rudolfiella              Rud        Natural
        Rumrillara               Rlla       Asctm x Neof x Rhy
        Rusbyella
        Saccolabium              Saccm      Natural
        Sagarikara               Sgka       Aer x Arach x Rhy
        Sallyyeeara                 Sya        B x Bro x C x Ctps x Diacm x Epi x
L x Schom x Soph
        Sanderara                Sand       Brs x Cda x Odm
        Sanderella
        Sanjumeara               Sjma       Aer x Neof x Rhy x V
        Saplalaara                 Spla
        Sappanara                Sapp       Arach x Phal x Ren
        Saracenella
        Sarcanthus               Snths      Natural
        Sarcocentrum             Srctm      Asctm x Sarco
        Sarcochilus              Sarco      Natural
        Sarcoglottis
        Sarcomoanthus            Sran       Sarco x Dry
        Sarconopsis              Srnps      Phal x Sarco
        Sarcophyton
        Sarcopodium
        Sarcorhiza               Srza       Rhin x Sarco
        Sarcostoma
        Sarcothera               Srth       Ren x Sarco
        Sarcovanda               Srv        Sarco x V
        Saridestylis             Srdts      Asr x Rhy x Snths
        Sartylis                 Srts       Rhy x Sarco
        Satyrium                 Satm       Natural
        Sauledaara               Sdra       Asp x Brs x Milt x Onc x Rdza
        Saundersia
        Scaphosepalum
        Scaphyglottis            Scgl       Natural
        Scelochilus
        Schafferara              Schfa      Asp x Brs x Cda x Milt x Odm
        Schlimmia
        Schoenorchis
        Schombavola              Smbv       B x Schom
        Schombocatonia           Smbcna     Bro x C x Schom
        Schombocattleya          Smbc       C x Schom
        Schombodiacrium          Smbdcm     Diacm x Schom
        Schomboepidenrum         Smbep      Epi x Schom
        Schombolaelia            Smbl       L x Schom
        Schombonia               Smbna      Bro x Schom
        Schombonitis             Smbts      Schrom x Soph
        Schromburgkia            Schom      Natural
        Scottara                 Sctt       Aer x Arach x Lsa
        Scullyara                Scu        C x Epi x Schom
        Scuticaria
        Seahexa                  Sxa        Hex x Hxsa
        Sedenfadenia             Sdnfda*    Natural
        Sedirea                  Sdr*       Natural
        Seidenfadenia            Seidnf*    Natural
        Segerara                 Sgra       Asp x Cda x Milt x Odm x Onc
        Selenipedium             Sel        Natural
        Serapias                 Srps       Natural
        Sevedrinara              Sev        Diacm x L x Soph
        Shigeuraara              Shgra      Asctm x Ascgm x Ren x V
        Shipmanara               Shipm      Bro x Diacm x Schom
        Shiveara                 Shva       Asp x Brs x Odm x Onc
        Sidranara                Sidr       Ascrm x Phal x Ren
        Sievekingia
        Sigmatostalix            Sgmx       Natural
        Silpaprasertara          Silpa      Aer x Asctm x Snths
        Sladeara                 Slad       Dor x Phal x Sarco
        Smitinandia
        Sobennigraecum           Sbgcm      Angcm x Sbk
        Sobennikoffia            Sbk        Natural
        Sobralia                 Sob        Natural
        Solenidiopsis
        Solenidium
        Sophrocattleya           Sc         C x Soph
        Sophrolaelia             Sl         L x Soph
        Sophrolaeliocattleya     Slc        C x L x Soph
        Sophronitella            Sphrnt*    Natural
        Sophronitis              Soph       Natural
        Soterosanthus
        Spathoglottis            Spa        Natural
        Sphyrarhynchus
        Sphyrastylis
        Spiranthes
        Srisukara                 Srka       Asctm x Cleis x Rhy
        Staalara                 Staal      Bark x L x Soph
        Stacyara                 Stac       C x Epi x Soph
        Stamariaara              Stmra      Asctm x Phal x Ren x V
        Stanfieldara             Sfdra      Epi x L x Soph
        Stangora                 Stga       Gga x Stan
        Stanhocycnis             Stncn      Pcn x Stan
        Stanhopea                Stan       Natural
        Staurochilus             Stchls*    Natural
        Stauropsis               Strpss*    Natural
        Stelia
        Stelis
        Stellamizutaara          Stlma      Bro x Bro x C
        Stellilabium
        Stenia                   Stenia     Natural
        Stenocoryne
        Stenoglottis                 Sngl
        Stenorrhynchus
        Stereochilus
        Stewartara               Stwt       Ada x Cda x Odm
        Stolzia
        Sutingara                Sut        Arach x Asctm x Phal x V x Vdps
        Symphoglossum            Sympho*    Natural
        Symphyglossum            Symphy*    Natural
        Systeloglossum
        Taenophyllum
        Tainia
        Telipogon
        Teohara                  Thra       Arach x Ren x V x Vdps
        Tetracattleya            Ttct       C x Ttma
        Tetradiacrium            Ttdm       Diacm x Ttma
        Tetrakeria               Ttka       Bark x Ttma
        Tetraliopsis             Ttps       Lps x Ttma
        Tetramicra               Ttma       Natural
        Tetratonia               Tttna      Bro x Ttma
        Thelymitra               Thel       Natural
        Theocostele
        Thesaera                 Thsra      Aergs x Aerth
        Thrixspermum
        Thunia                   Thu        Natural
        Ticoglossum
        Tipularia
        Tolumnia
        Trautara                 Trta       Dor x Lsa x Phal
        Trevorara                Trev       Arach x Phal x V
        Trias                         Trias
        Trichocentrum            Trctm      Natural
        Trichoceros
        Trichocidium             Trcdm      Onc x Trctm
        Trichoglottis            Trgl       Natural
        Trichonopsis             Trnps      Phal x Trgl
        Trichopilia              Trpla      Natural
        Trichopsis               Trcps      Trgl x Vdps
        Trichosalpinx
        Trichostylis             Trst       Rhy x Trgl
        Trichovanda              Trcv       Trgl x V
        Tridactyle
        Trigolyca                Trgca      Mcla x Trgdm
        Trigonidium              Trgdm      Natural
        Trisetella
        Trizeuxis
        Tubaecum                 Tbcm       Angcm x Tblm
        Tuberolabium             Tblm       Natural
        Tuckerara                Tuck       C x Diacm x Epi
        Tuescheria
        Turnbowara               Tbwa       Bark x Bro x C
        Unicefera
        Uptonara                 Upta       Phal x Rhy x Sarco
        Vacherotara                 Vach       B x Bro x C x Epi x L x Soph
        Vanalstyneara            Vnsta      Milt x Odm x Onc x Rdza
        Vancampe                 Vcp        Acp x V
        Vanda                    V          Natural
        Vandachnis               Vchns      Arach x Vdps
        Vandaenopsis             Vdnps      Phal x V
        Vandaeranthes            Vths       Aerth x V
        Vandewegheara            Vwga       Asctm x Dor x Phal x V
        Vandofinetia             Vf         Neof x V
        Vandofinides             Vfds       Aer x Neof x V
        Vandopsides              Vdpsd      Aer x Vdps
        Vandopsis                Vdps       Natural
        Vandoritis               Vdts       Dor x V
        Vanglossum                 Vgm            Ascgm x V
        Vanilla                                    Natural
        Vascostylis              Vasco      Asctm x Rhy x V
        Vaughnara                Vnra       B x C x Epi
        Vejvarutara              Vja        Bro x C x Ctps
        Vuylstekeara             Vuyl       Cda x Milt x Odm
        Warmingia
        Warneara                 Wnra       Comp x Onc x Rdza
        Warrea                   Wra        Natural
        Warreella
        Warscewiczella           Wrscwc*    Natural
        Westara                  Wsta       B x Bro x C x L x Schom
        Wilburchangara           Wbchg      Bro x C x Epi x Schom
        Wilkinsara               Wknsra     Asctm x V x Vdps
        Wilsonara                Wils       Cda x Odm x Onc
        Wingfieldara             Wgfa       Asp x Brs x Odm
        Withnerara               With       Asp x Milt x Odm x Onc
        Wooara                   Woo        B x Bro x Epi
        Xylobium                 Xyl        Natural
        Yahiroara                Yhra       B x C x Epi x L x Schom
        Yamadara                 Yam        B x C x Epi X L
        Yapara                   Yap        Phal x Rhy x V
        Yeeara                         Yra           B x Bro x C x Epi x L x Schom x Soph
        Yoneoara                 Ynra       Ren x Rhy x Vdps
        Yonezawaara              Yzwr       Neof x Rhy x V
        Yosilopus
        Yusofara                 Ysfra      Arach x Asctm x Ren x V
        Zeuxine
        Zootrophion
        Zygobatemannia           Zbm        Btmna x Z
        Zygocaste                Zcst       Lyc x Z
        Zygocella                Zcla       Mdcla x Z
        Zygocolax                Zcx        Clx x Z
        Zygodisanthus            Zdsnth     Pdsnth x Z
        Zygolum                  Zglm       Z x Zspm
        Zygoneria                Zga        Ngda x Z
        Zygonisia                Zns        Agn x Z
        Zygopetelum              Z          Natural
        Zygorhyncha              Zcha       Chdra x Z
        Zygosepalum              Zspm       Natural
        Zygostates
        Zygostylis               Zsts       Otst x Z
        Zygotorea                Zgt        Pes x Z
        Zygowarrea                 Zwr            Wra x Z
 
 
 
NOTE: The correct way to write an orchid name is Genus; Species
or Hybrid; `Cultivar' (in single quotes), Award. Example: Slc. Jewel
Box `Dark Waters', AM/AOS