| Paphiopedilum Susan TuckerPaph. Susan Tucker | | Nov 1 1954 | C.Atkinson |
| Paphiopedilum MarathonPaph. Marathon | | Jan 1 1953 | Alexander |
| Paphiopedilum Fred WattsPaph. Fred Watts | | Jan 1 1952 | Alexander |
| Paphiopedilum IncaPaph. Inca | | Nov 1 1948 | Alexander |
| Paphiopedilum Golden LegendPaph. Golden Legend | | Jan 1 1948 | Alexander |
| Paphiopedilum MayaPaph. Maya | | Jan 1 1948 | Alexander |
| Cymbidium VulcanCym. Vulcan | | Jan 1 1948 | Alexander |
| Cattleya JaneC. Jane | | Jan 1 1948 | Alexander |
| Cymbidium UlyssesCym. Ulysses | | Jan 1 1948 | Alexander |
| Cymbidium VandraCym. Vandra | | Jan 1 1948 | Alexander |
| Paphiopedilum JanePaph. Jane | | Jan 1 1948 | Alexander |
| Paphiopedilum HouriPaph. Houri | | Jan 1 1948 | Alexander |
| Paphiopedilum NimuePaph. Nimue | | Jan 1 1948 | Alexander |
| Cymbidium Memoria S. G. AlexanderCym. Mem. S. G. Alexander | | Jan 1 1948 | Alexander |
| Cattleya Cordelia (1948)C. Cordelia (1948) | | Jan 1 1948 | Alexander |
| Paphiopedilum HerewardPaph. Hereward | | Jan 1 1947 | Alexander |
| Cattleya DilysC. Dilys | | Jan 1 1947 | Alexander |
| Cattleya GriseldaC. Griselda | | Jan 1 1947 | Alexander |
| Paphiopedilum MazeppaPaph. Mazeppa | | Jan 1 1947 | Alexander |
| Cymbidium PersephoneCym. Persephone | | Jan 1 1947 | Alexander |
| Paphiopedilum AndromachePaph. Andromache | | Jan 1 1947 | Alexander |
| Cattleya Golden RadianceC. Golden Radiance | | Jan 1 1947 | Alexander |
| Cymbidium ErebusCym. Erebus | | Jan 1 1947 | Alexander |
| Cymbidium LanternCym. Lantern | | Jan 1 1947 | Alexander |
| Rhyncholaeliocattleya Medea (1946)Rlc. Medea (1946)intergeneric | | Dec 1 1946 | Alexander |
| Cymbidium Dresden LadyCym. Dresden Lady | | Jan 1 1946 | Alexander |
| Cymbidium LucretiaCym. Lucretia | | Jan 1 1946 | Alexander |
| Cymbidium ArgosyCym. Argosy | | Jan 1 1946 | Alexander |
| Cattleya Golden RayC. Golden Ray | | Jan 1 1946 | Alexander |
| Cymbidium OreadCym. Oread | | Jan 1 1946 | Alexander |
| Paphiopedilum BenvolioPaph. Benvolio | | Jan 1 1946 | Alexander |
| Cymbidium TalismanCym. Talisman | | Jan 1 1946 | Alexander |
| Cymbidium HesperidesCym. Hesperides | | Jan 1 1946 | Alexander |
| Paphiopedilum LucretiaPaph. Lucretia | | Jan 1 1946 | Alexander |
| Cattleya SallyC. Sally | | Jan 1 1946 | Alexander |
| Cymbidium MercutioCym. Mercutio | | Jan 1 1946 | Alexander |
| Rhyncholaeliocattleya PontiacRlc. Pontiacintergeneric | | Jan 1 1945 | Alexander |
| Cymbidium AileenCym. Aileen | | Jan 1 1945 | Alexander |
| Paphiopedilum ZaraPaph. Zara | | Jan 1 1945 | Alexander |
| Cymbidium CathayCym. Cathay | | Jan 1 1945 | Alexander |
| Paphiopedilum TelamonPaph. Telamon | | Jan 1 1945 | Alexander |
| Cattleya SnowfallC. Snowfall | | Jan 1 1945 | Alexander |
| Paphiopedilum SusanPaph. Susan | | Jan 1 1945 | Alexander |
| Paphiopedilum Red KingPaph. Red King | | Jan 1 1945 | Alexander |
| Cymbidium IseultCym. Iseult | | Jan 1 1945 | Alexander |
| Cymbidium HeraCym. Hera | | Jan 1 1945 | Alexander |
| Cymbidium BuccaneerCym. Buccaneer | | Jan 1 1944 | Alexander |
| Cymbidium Anne BoleynCym. Anne Boleyn | | Jan 1 1944 | Alexander |
| Rhyncholaeliocattleya ArgosyRlc. Argosyintergeneric | | Jan 1 1944 | Alexander |
| Cymbidium AntigoneCym. Antigone | | Jan 1 1944 | Alexander |
| Cattleya Beatrice (1944)C. Beatrice (1944) | | Jan 1 1944 | Alexander |
| Cymbidium SyrinxCym. Syrinx | | Jan 1 1944 | Alexander |
| Cymbidium MaksharaCym. Makshara | | Jan 1 1944 | Alexander |
| Cattleya MichaelC. Michael | | Jan 1 1944 | Alexander |
| Cattleya Vesper (1944)C. Vesper (1944) | | Jan 1 1944 | Alexander |
| Paphiopedilum SemiramisPaph. Semiramis | | Jan 1 1944 | Alexander |
| Cymbidium RenaissanceCym. Renaissance | | Jan 1 1944 | Alexander |
| Paphiopedilum MoonchildPaph. Moonchild | | Jan 1 1944 | Alexander |
| Paphiopedilum EothenPaph. Eothen | | Jan 1 1943 | Alexander |
| Cattleya Angelus (1943)C. Angelus (1943) | | Jan 1 1943 | Alexander |
| Rhyncholaeliocattleya JaneRlc. Janeintergeneric | | Jan 1 1943 | Alexander |
| Cymbidium EuropaCym. Europa | | Jan 1 1943 | Alexander |
| Cymbidium FrivolityCym. Frivolity | | Jan 1 1943 | Alexander |
| Cymbidium DaydreamCym. Daydream | | Jan 1 1943 | Alexander |
| Cattleya Rhoda (1943)C. Rhoda (1943) | | Jan 1 1943 | Alexander |
| Cattleya MagicC. Magic | | Jan 1 1943 | Alexander |
| Cattleya BuccaneerC. Buccaneer | | Jan 1 1943 | Alexander |
| Cattleya Fire QueenC. Fire Queen | | Jan 1 1943 | Alexander |
| Cattleya Gertrude (1943)C. Gertrude (1943) | | Jan 1 1943 | Alexander |
| Cymbidium LilithCym. Lilith | | Jan 1 1943 | Alexander |
| Cymbidium CorneliaCym. Cornelia | | Jan 1 1943 | Alexander |
| Cymbidium ThaisCym. Thais | | Jan 1 1943 | Alexander |
| Rhyncholaeliocattleya UlyssesRlc. Ulysses | | Jan 1 1943 | Alexander |
| Cymbidium LedaCym. Leda | | Jan 1 1943 | Alexander |
| Cattleya NimueC. Nimue | | Jan 1 1943 | Alexander |
| Cymbidium NofrureCym. Nofrure | | Jan 1 1943 | Alexander |
| Cymbidium Joan of ArcCym. Joan of Arc | | Jan 1 1943 | Alexander |
| Cattleya HaideeC. Haidee | | Jan 1 1943 | Alexander |
| Cymbidium IrinaCym. Irina | | Jan 1 1943 | Alexander |
| Cattleya RosabelleC. Rosabelle | | Jan 1 1943 | Alexander |
| Cymbidium MargarettaCym. Margaretta | | Jan 1 1943 | Alexander |
| Paphiopedilum ArdynePaph. Ardyne | | Jan 1 1943 | Alexander |
| Cymbidium NitocrisCym. Nitocris | | Jan 1 1943 | Alexander |
| Cymbidium AmazonCym. Amazon | | Jan 1 1943 | Alexander |
| Cymbidium PavlovaCym. Pavlova | | Jan 1 1943 | Alexander |
| Cymbidium AlcestisCym. Alcestis | | Jan 1 1943 | Alexander |
| Cattleya MayC. May | | Jan 1 1943 | Alexander |
| Cattleya ClareC. Clare | | Jan 1 1943 | Alexander |
| Cymbidium SemeleCym. Semele | | Jan 1 1943 | Alexander |
| Cattleya GodivaC. Godiva | | Jan 1 1943 | Alexander |
| Cattleya HarrietC. Harriet | | Jan 1 1943 | Alexander |
| Cattleya Nymph (1943)C. Nymph (1943) | | Jan 1 1943 | Alexander |
| Cymbidium TroubadourCym. Troubadour | | Jan 1 1943 | Alexander |
| Cattleya NecromancerC. Necromancer | | Jan 1 1943 | Alexander |
| Rhyncholaeliocattleya Dante (1943)Rlc. Dante (1943)intergeneric | | Jan 1 1943 | Alexander |
| Cattleya Susan (1943)C. Susan (1943) | | Jan 1 1943 | Alexander |
| Cattleya Poppaea (1943)C. Poppaea (1943) | | Jan 1 1943 | Alexander |
| Paphiopedilum Morning GloryPaph. Morning Glory | | Jan 1 1943 | Alexander |
| Cattleya NinevehC. Nineveh | | Jan 1 1943 | Alexander |
| Paphiopedilum DalmatiaPaph. Dalmatia | | Jan 1 1943 | Alexander |
| Cattleya Rose DavisC. Rose Davis | | Jan 1 1943 | Alexander |
| Cymbidium RosalitaCym. Rosalita | | Jan 1 1943 | Alexander |
| Cymbidium Beau BrummelCym. Beau Brummel | | Jan 1 1943 | Alexander |
| Rhyncholaeliocattleya CajoleryRlc. Cajoleryintergeneric | | Jan 1 1943 | Alexander |
| Paphiopedilum PocahontasPaph. Pocahontas | | Jan 1 1943 | Alexander |
| Cattleya ShebaC. Sheba | | Jan 1 1943 | Alexander |
| Cymbidium Nell GwynneCym. Nell Gwynne | | Jan 1 1943 | Alexander |
| Cymbidium Rosa MundiCym. Rosa Mundi | | Jan 1 1943 | Alexander |
| Cattleya PersephoneC. Persephone | | Jan 1 1942 | Alexander |
| Paphiopedilum Golden RadiancePaph. Golden Radiance | | Jan 1 1942 | Alexander |
| Paphiopedilum TheresaPaph. Theresa | | Jan 1 1942 | Alexander |
| Cymbidium PomonaCym. Pomona | | Jan 1 1942 | Alexander |
| Cymbidium BabylonCym. Babylon | | Jan 1 1942 | Alexander |
| Cymbidium MinuetCym. Minuetprimary | | Jan 1 1942 | Alexander |
| Cattleya BacchanteC. Bacchante | | Jan 1 1942 | Alexander |
| Paphiopedilum ThelmaPaph. Thelma | | Jan 1 1942 | Alexander |
| Cymbidium MinervaCym. Minerva | | Jan 1 1942 | Alexander |
| Cymbidium CandaceCym. Candace | | Jan 1 1942 | Alexander |
| Cattleya AtlantisC. Atlantis | | Jan 1 1942 | Alexander |
| Cattleya H. G. AlexanderC. H. G. Alexander | | Jan 1 1942 | Alexander |
| Cymbidium PerseusCym. Perseus | | Jan 1 1942 | Alexander |
| Rhyncholaeliocattleya KatzimoRlc. Katzimointergeneric | | Jan 1 1941 | Alexander |
| Paphiopedilum Golden LightPaph. Golden Light | | Jan 1 1941 | Alexander |
| Cattleya Juliet (1941)C. Juliet (1941) | | Jan 1 1941 | Alexander |
| Cattleya Boadicea (1941)C. Boadicea (1941) | | Jan 1 1941 | Alexander |
| Cattleya IsottaC. Isotta | | Jan 1 1941 | Alexander |
| Paphiopedilum Sheba (1941)Paph. Sheba (1941) | | Jan 1 1941 | Alexander |
| Paphiopedilum ShalimarPaph. Shalimar | | Jan 1 1941 | Alexander |
| Paphiopedilum CharlemagnePaph. Charlemagne | | Jan 1 1941 | Alexander |
| Cymbidium PrudenceCym. Prudence | | Jan 1 1941 | Alexander |
| Paphiopedilum WinifredPaph. Winifred | | Jan 1 1941 | Alexander |
| Paphiopedilum IsabellaPaph. Isabella | | Jan 1 1941 | Alexander |
| Cattleya Oenone (1941)C. Oenone (1941) | | Jan 1 1941 | Alexander |
| Cymbidium PhilomelaCym. Philomela | | Jan 1 1941 | Alexander |
| Cattleya Sabina (1941)C. Sabina (1941) | | Jan 1 1941 | Alexander |
| Paphiopedilum MargaretPaph. Margaret | | Jan 1 1941 | Alexander |
| Cymbidium MontezumaCym. Montezuma | | Jan 1 1941 | Alexander |
| Paphiopedilum PompadourPaph. Pompadour | | Jan 1 1941 | Alexander |
| Cymbidium AtonCym. Aton | | Jan 1 1941 | Alexander |
| Paphiopedilum HellasPaph. Hellas | | Nov 1 1940 | Alexander |
| Rhyncholaeliocattleya EmiliaRlc. Emiliaintergeneric | | Jan 1 1940 | Alexander |
| Cymbidium BerengariaCym. Berengaria | | Jan 1 1940 | Alexander |
| Cymbidium Painted LadyCym. Painted Lady | | Jan 1 1940 | Alexander |
| Cymbidium GabrielCym. Gabriel | | Jan 1 1940 | Alexander |
| Cattleya MatrionaC. Matriona | | Jan 1 1940 | Alexander |
| Cymbidium LeonoraCym. Leonora | | Jan 1 1940 | Alexander |
| Cymbidium MelpomeneCym. Melpomene | | Jan 1 1940 | Alexander |
| Paphiopedilum Golden HindPaph. Golden Hind | | Jan 1 1940 | Alexander |
| Cymbidium IrasCym. Iras | | Jan 1 1940 | Alexander |
| Cattleya MirabelleC. Mirabelle | | Jan 1 1940 | Alexander |
| Rhyncholaeliocattleya AnnRlc. Annintergeneric | | Jan 1 1940 | Alexander |
| Paphiopedilum Red KnightPaph. Red Knight | | Jan 1 1940 | Alexander |
| Paphiopedilum FenellaPaph. Fenella | | Jan 1 1940 | Alexander |
| Cattleya Miranda (1940)C. Miranda (1940) | | Jan 1 1940 | Alexander |
| Cattleya Orange BeautyC. Orange Beauty | | Jan 1 1940 | Alexander |
| Cymbidium MakedaCym. Makeda | | Jan 1 1940 | Alexander |
| Cymbidium Queen MaryCym. Queen Mary | | Jan 1 1940 | Alexander |
| Cymbidium MayaCym. Maya | | Jan 1 1940 | Alexander |
| Cymbidium NaomiCym. Naomi | | Jan 1 1940 | Alexander |
| Paphiopedilum RedskinPaph. Redskin | | Jan 1 1940 | Alexander |
| Cymbidium JosephineCym. Josephine | | Jan 1 1940 | Alexander |
| Cattleya RosamundeC. Rosamunde | | Jan 1 1940 | Alexander |
| Paphiopedilum FalconPaph. Falcon | | Jan 1 1940 | Alexander |
| Paphiopedilum AtonPaph. Aton | | Jan 1 1940 | Alexander |
| Cattleya HecuvaC. Hecuva | | Jan 1 1940 | Alexander |
| Cymbidium NereidCym. Nereid | | Jan 1 1940 | Alexander |
| Phalaenopsis PietyPhal. Piety | | Jan 1 1940 | Alexander |
| Cymbidium NefertitiiCym. Nefertitii | | Jan 1 1940 | Alexander |
| Paphiopedilum MarsulaPaph. Marsula | | Jan 1 1940 | Alexander |
| Cymbidium AztecCym. Aztec | | Jan 1 1940 | Alexander |
| Cymbidium DesdemonaCym. Desdemona | | Jan 1 1940 | Alexander |
| Paphiopedilum PeridotPaph. Peridot | | Jan 1 1940 | Alexander |
| Paphiopedilum NecromancerPaph. Necromancer | | Jan 1 1940 | Alexander |
| Cymbidium OliviaCym. Olivia | | Jan 1 1940 | Alexander |
| Paphiopedilum HazelPaph. Hazel | | Jan 1 1940 | Alexander |
| Cymbidium ThaliaCym. Thalia | | Jan 1 1940 | Alexander |
| Paphiopedilum CortinaPaph. Cortina | | Jan 1 1939 | Alexander |
| Paphiopedilum HarmachisPaph. Harmachis | | Jan 1 1939 | Alexander |
| Paphiopedilum HarounPaph. Haroun | | Jan 1 1939 | Alexander |
| Paphiopedilum CortezPaph. Cortez | | Jan 1 1939 | Alexander |
| Cattleya Pavlova (1939)C. Pavlova (1939) | | Jan 1 1939 | Alexander |
| Paphiopedilum PerditaPaph. Perdita | | Jan 1 1939 | Alexander |
| Cymbidium CarmenCym. Carmen | | Jan 1 1939 | Alexander |
| Paphiopedilum RaphaelPaph. Raphael | | Jan 1 1939 | Alexander |
| Paphiopedilum FrancescaPaph. Francesca | | Jan 1 1939 | Alexander |
| Cymbidium MiriamCym. Miriam | | Jan 1 1939 | Alexander |
| Paphiopedilum CathayPaph. Cathay | | Jan 1 1939 | Alexander |
| Paphiopedilum MarillaPaph. Marilla | | Jan 1 1939 | Alexander |
| Cymbidium EuniceCym. Eunice | | Jan 1 1939 | Alexander |
| Cymbidium ParnassusCym. Parnassus | | Jan 1 1939 | Alexander |
| Cattleya MaksharaC. Makshara | | Jan 1 1939 | Alexander |
| Paphiopedilum PervanehPaph. Pervaneh | | Jan 1 1939 | Alexander |
| Paphiopedilum DelysiaPaph. Delysia | | Jan 1 1939 | Alexander |
| Cymbidium GodivaCym. Godiva | | Jan 1 1939 | Alexander |
| Cymbidium GretaCym. Greta | | Jan 1 1939 | Alexander |
| Paphiopedilum Humming BirdPaph. Humming Bird | | Jan 1 1939 | Alexander |
| Cattleya AileenC. Aileen | | Jan 1 1939 | Alexander |
| Cymbidium HerodCym. Herod | | Jan 1 1939 | Alexander |
| Paphiopedilum CavalesePaph. Cavalese | | Jan 1 1939 | Alexander |
| Paphiopedilum GeishaPaph. Geisha | | Jan 1 1939 | Alexander |
| Paphiopedilum DorcasPaph. Dorcas | | Jan 1 1939 | Alexander |
| Cymbidium EstherCym. Esther | | Jan 1 1939 | Alexander |
| Paphiopedilum ColumbinePaph. Columbine | | Jan 1 1939 | Alexander |
| Cymbidium MithrasCym. Mithras | | Jan 1 1939 | Alexander |
| Cymbidium OdinCym. Odin | | Jan 1 1939 | Alexander |
| Paphiopedilum PortiaPaph. Portia | | Jan 1 1939 | Alexander |
| Cymbidium MedinaCym. Medina | | Jan 1 1939 | Alexander |
| Paphiopedilum SorelPaph. Sorel | | Jan 1 1939 | Alexander |
| Cymbidium HermioneCym. Hermione | | Jan 1 1939 | Alexander |
| Cymbidium HarmachisCym. Harmachis | | Jan 1 1939 | Alexander |
| Cattleya DamarisC. Damaris | | Jan 1 1938 | Alexander |
| Rhyncholaeliocattleya Eileen ElgarRlc. Eileen Elgarintergeneric | | Jan 1 1938 | Alexander |
| Rhyncholaeliocattleya BerengariaRlc. Berengaria | | Jan 1 1938 | Alexander |
| Cymbidium ElsaCym. Elsa | | Jan 1 1938 | Alexander |
| Cattleya PervanehC. Pervaneh | | Jan 1 1938 | Alexander |
| Paphiopedilum AmielPaph. Amiel | | Jan 1 1938 | Alexander |
| Paphiopedilum JasminePaph. Jasmine | | Jan 1 1938 | Alexander |
| Paphiopedilum CordeliaPaph. Cordelia | | Jan 1 1938 | Alexander |
| Rhyncholaeliocattleya Delysia (1938)Rlc. Delysia (1938)intergeneric | | Jan 1 1938 | Alexander |
| Oncidium IshtarOnc. Ishtar | | Jan 1 1938 | Alexander |
| Cymbidium LucindaCym. Lucinda | | Jan 1 1938 | Alexander |
| Cymbidium PsycheCym. Psyche | | Jan 1 1938 | Alexander |
| Cymbidium ArtemisCym. Artemis | | Jan 1 1938 | Alexander |
| Oncidium RosamondOnc. Rosamond | | Jan 1 1938 | Alexander |
| Paphiopedilum BrigandPaph. Brigand | | Jan 1 1938 | Alexander |
| Paphiopedilum DelphinePaph. Delphine | | Jan 1 1938 | Alexander |
| Cattleya AmnerisC. Amneris | | Jan 1 1938 | Alexander |
| Cattleya Mary RoseC. Mary Rose | | Jan 1 1938 | Alexander |
| Oncidium ButterflyOnc. Butterfly | | Jan 1 1938 | Alexander |
| Cymbidium EverestCym. Everest | | Jan 1 1938 | Alexander |
| Cattleya DesdemonaC. Desdemona | | Jan 1 1938 | Alexander |
| Paphiopedilum BabarPaph. Babar | | Jan 1 1938 | Alexander |
| Cattleya LoisC. Lois | | Jan 1 1938 | Alexander |
| Cattleya MithrasC. Mithras | | Jan 1 1937 | Alexander |
| Paphiopedilum MothPaph. Moth | | Jan 1 1937 | Alexander |
| Rhyncholaeliocattleya BerengariaRlc. Berengariaintergeneric | | Jan 1 1937 | Alexander |
| Cymbidium LohengrinCym. Lohengrin | | Jan 1 1937 | Alexander |
| Paphiopedilum PericlesPaph. Pericles | | Jan 1 1937 | Alexander |
| Paphiopedilum ElissaPaph. Elissa | | Jan 1 1937 | Alexander |
| Cymbidium Queen ElizabethCym. Queen Elizabeth | | Jan 1 1937 | Alexander |
| Cattleya MariamneC. Mariamne | | Jan 1 1937 | Alexander |
| Paphiopedilum TrojanPaph. Trojan | | Jan 1 1937 | Alexander |
| Paphiopedilum ParagonPaph. Paragon | | Jan 1 1937 | Alexander |
| Cymbidium RaphaelCym. Raphael | | Jan 1 1937 | Alexander |
| Cymbidium NephtysCym. Nephtys | | Jan 1 1937 | Alexander |
| Cymbidium JenniferCym. Jennifer | | Jan 1 1937 | Alexander |
| Cymbidium LavengroCym. Lavengro | | Jan 1 1937 | Alexander |
| Paphiopedilum Green KnightPaph. Green Knight | | Jan 1 1937 | Alexander |
| Rhyncholaeliocattleya CaliphaRlc. Caliphaintergeneric | | Jan 1 1937 | Alexander |
| Paphiopedilum ManyaPaph. Manya | | Jan 1 1937 | Alexander |
| Cattleya YasminC. Yasmin | | Jan 1 1937 | Alexander |
| Cymbidium OsirisCym. Osiris | | Jan 1 1937 | Alexander |
| Paphiopedilum ButterflyPaph. Butterfly | | Jan 1 1937 | Alexander |
| Paphiopedilum Cameo IIPaph. Cameo II | | Jan 1 1937 | Alexander |
| Paphiopedilum GillianPaph. Gillian | | Jan 1 1937 | Alexander |
| Paphiopedilum TheodoraPaph. Theodora | | Jan 1 1936 | Alexander |
| Cattleya LustrousC. Lustrous | | Jan 1 1936 | Alexander |
| Cattleya NofrureC. Nofrure | | Jan 1 1936 | Alexander |
| Rhyncholaeliocattleya AudreyRlc. Audreyintergeneric | | Jan 1 1936 | Alexander |
| Paphiopedilum MariannePaph. Marianne | | Jan 1 1936 | Alexander |
| Paphiopedilum Lawrence of ArabiaPaph. Lawrence of Arabia | | Jan 1 1936 | Alexander |
| Cymbidium OpheliaCym. Ophelia | | Jan 1 1936 | Alexander |
| Paphiopedilum NofrurePaph. Nofrure | | Jan 1 1936 | Alexander |
| Paphiopedilum NepthysPaph. Nepthys | | Jan 1 1936 | Alexander |
| Cattleya RosamondC. Rosamond | | Jan 1 1936 | Alexander |
| Paphiopedilum GuineverePaph. Guinevere | | Jan 1 1936 | Alexander |
| Cymbidium VesuviusCym. Vesuvius | | Jan 1 1936 | Alexander |
| Cattleya CalliopeC. Calliope | | Jan 1 1936 | Alexander |
| Cattleya MarraineC. Marraine | | Jan 1 1936 | Alexander |
| Cymbidium VanessaCym. Vanessa | | Jan 1 1936 | Alexander |
| Paphiopedilum JancisPaph. Jancis | | Jan 1 1936 | Alexander |
| Cattleya Jewel (1936)C. Jewel (1936) | | Jan 1 1936 | Alexander |
| Paphiopedilum WandaPaph. Wanda | | Jan 1 1936 | Alexander |
| Cymbidium RosamondCym. Rosamond | | Jan 1 1935 | Alexander |
| Paphiopedilum HilaryPaph. Hilary | | Jan 1 1935 | Alexander |
| Phalaenopsis Profusion (1935)Phal. Profusion (1935) | | Jan 1 1935 | Alexander |
| Cymbidium CarolineCym. Caroline | | Jan 1 1935 | Alexander |
| Paphiopedilum ElenaPaph. Elena | | Jan 1 1935 | Alexander |
| Cymbidium VikingCym. Viking | | Jan 1 1935 | Alexander |
| Paphiopedilum UndinePaph. Undine | | Jan 1 1935 | Alexander |
| Cattleya BallerinaC. Ballerina | | Jan 1 1935 | Alexander |
| Paphiopedilum CeshiaPaph. Ceshia | | Jan 1 1935 | Alexander |
| Paphiopedilum BacchantePaph. Bacchante | | Jan 1 1935 | Alexander |
| Paphiopedilum LilithPaph. Lilith | | Jan 1 1935 | Alexander |
| Cymbidium MermaidCym. Mermaid | | Jan 1 1935 | Alexander |
| Cymbidium RaCym. Ra | | Jan 1 1935 | Alexander |
| Cymbidium GlorianaCym. Gloriana | | Jan 1 1935 | Alexander |
| Cymbidium CressidaCym. Cressida | | Jan 1 1935 | Alexander |
| Cattleya KathereynC. Kathereyn | | Jan 1 1935 | Alexander |
| Cymbidium PompadourCym. Pompadour | | Jan 1 1935 | Alexander |
| Paphiopedilum Dresden LadyPaph. Dresden Lady | | Jan 1 1935 | Alexander |
| Paphiopedilum NataliePaph. Natalie | | Jan 1 1935 | Alexander |
| Cymbidium EveCym. Eve | | Jan 1 1935 | Alexander |
| Cattleya DelilahC. Delilah | | Jan 1 1935 | Alexander |
| Rhyncholaeliocattleya BallerinaRlc. Ballerinaintergeneric | | Jan 1 1935 | Alexander |
| Paphiopedilum CynaraPaph. Cynara | | Jan 1 1934 | Alexander |
| Paphiopedilum LorettaPaph. Loretta | | Jan 1 1934 | Alexander |
| Cymbidium MandarinCym. Mandarin | | Jan 1 1934 | Alexander |
| Cymbidium OrpheusCym. Orpheus | | Jan 1 1934 | Alexander |
| Cattleya Matador (2)C. Matador (2) | | Jan 1 1934 | Alexander |
| Cattleya Elissa (1934)C. Elissa (1934) | | Jan 1 1934 | Alexander |
| Cattleya Golden GleamC. Golden Gleam | | Jan 1 1934 | Alexander |
| Cymbidium CometCym. Comet | | Jan 1 1934 | Alexander |
| Paphiopedilum DoloresPaph. Dolores | | Jan 1 1934 | Alexander |
| Paphiopedilum ThorPaph. Thor | | Jan 1 1934 | Alexander |
| Paphiopedilum AileenPaph. Aileen | | Jan 1 1934 | Alexander |
| Paphiopedilum TanisPaph. Tanis | | Jan 1 1934 | Alexander |
| Cymbidium HeloiseCym. Heloise | | Jan 1 1934 | Alexander |
| Paphiopedilum CharmainePaph. Charmaine | | Jan 1 1934 | Alexander |
| Paphiopedilum AmnerisPaph. Amneris | | Jan 1 1934 | Alexander |
| Cymbidium NerissaCym. Nerissa | | Jan 1 1934 | Alexander |
| Cymbidium JacquelineCym. Jacqueline | | Jan 1 1934 | Alexander |
| Cattleya BalkisC. Balkis | | Jan 1 1934 | Alexander |
| Cymbidium PhryneCym. Phryne | | Jan 1 1934 | Alexander |
| Cymbidium PharosCym. Pharos | | Jan 1 1934 | Alexander |
| Paphiopedilum SelmaPaph. Selma | | Jan 1 1934 | Alexander |
| Cymbidium RomaCym. Roma | | Jan 1 1934 | Alexander |
| Cattleya DubarryC. Dubarry | | Jan 1 1934 | Alexander |
| Paphiopedilum LeonoraPaph. Leonora | | Jan 1 1934 | Alexander |
| Cattleya StephanieC. Stephanie | | Jan 1 1934 | Alexander |
| Paphiopedilum Pamela IIPaph. Pamela II | | Jan 1 1934 | Alexander |
| Cattleya PhilomelaC. Philomela | | Jan 1 1934 | Alexander |
| Cymbidium DelysiaCym. Delysia | | Jan 1 1934 | Alexander |
| Cymbidium MyrnaCym. Myrna | | Jan 1 1934 | Alexander |
| Paphiopedilum DeliaPaph. Delia | | Jan 1 1934 | Alexander |
| Paphiopedilum EstherPaph. Esther | | Jan 1 1934 | Alexander |
| Paphiopedilum TaniaPaph. Tania | | Jan 1 1934 | Alexander |
| Cymbidium JungfrauCym. Jungfrau | | Jan 1 1933 | Alexander |
| Cattleya SoniaC. Sonia | | Jan 1 1933 | Alexander |
| Rhyncholaeliocattleya Beatrice (1933)Rlc. Beatrice (1933)intergeneric | | Jan 1 1933 | Alexander |
| Cymbidium FireflyCym. Firefly | | Jan 1 1933 | Alexander |
| Cymbidium KathleenCym. Kathleen | | Jan 1 1933 | Alexander |
| Cymbidium ChlorisCym. Chloris | | Jan 1 1933 | Alexander |
| Cymbidium MeteorCym. Meteor | | Jan 1 1933 | Alexander |
| Cymbidium MirabelCym. Mirabel | | Jan 1 1933 | Alexander |
| Cymbidium JancisCym. Jancis | | Jan 1 1933 | Alexander |
| Cattleya TheresaC. Theresa | | Jan 1 1933 | Alexander |
| Cymbidium PocahontasCym. Pocahontas | | Jan 1 1933 | Alexander |
| Cattleya SorelC. Sorel | | Jan 1 1933 | Alexander |
| Cattleya Monica (1933)C. Monica (1933) | | Jan 1 1933 | Alexander |
| Paphiopedilum Eldorado (1933)Paph. Eldorado (1933) | | Jan 1 1933 | Alexander |
| Cymbidium VivienCym. Vivien | | Jan 1 1933 | Alexander |
| Cymbidium PervanehCym. Pervaneh | | Jan 1 1933 | Alexander |
| Cymbidium FrancescaCym. Francesca | | Jan 1 1933 | Alexander |
| Cymbidium RosalindCym. Rosalind | | Jan 1 1932 | Alexander |
| Cymbidium HesperiaCym. Hesperia | | Jan 1 1932 | Alexander |
| Cymbidium FalconCym. Falcon | | Jan 1 1932 | Alexander |
| Cattleya AntheaC. Anthea | | Jan 1 1932 | Alexander |
| Cymbidium FredaCym. Freda | | Jan 1 1932 | Alexander |
| Cattleya GeishaC. Geisha | | Jan 1 1932 | Alexander |
| Cattleya Pinkie (1932)C. Pinkie (1932) | | Jan 1 1932 | Alexander |
| Cattleya FrancescaC. Francesca | | Jan 1 1932 | Alexander |
| Paphiopedilum DecameronPaph. Decameron | | Jan 1 1932 | Alexander |
| Cattleya Snow MaidenC. Snow Maiden | | Jan 1 1932 | Alexander |
| Cymbidium MelisandeCym. Melisande | | Jan 1 1932 | Alexander |
| Cattleya EveC. Eve | | Jan 1 1932 | Alexander |
| Cymbidium ApolloCym. Apollo | | Jan 1 1932 | Alexander |
| Cattleya PhillidaC. Phillida | | Jan 1 1932 | Alexander |
| Cymbidium RhodaCym. Rhoda | | Jan 1 1932 | Alexander |
| Rhyncholaeliocattleya Hebe (1932)Rlc. Hebe (1932)intergeneric | | Jan 1 1932 | Alexander |
| Cymbidium SkylarkCym. Skylark | | Jan 1 1932 | Alexander |
| Cymbidium JulianCym. Julian | | Jan 1 1932 | Alexander |
| Cymbidium GillianCym. Gillian | | Jan 1 1932 | Alexander |
| Paphiopedilum HerodPaph. Herod | | Jan 1 1932 | Alexander |
| Cymbidium ElissaCym. Elissa | | Jan 1 1932 | Alexander |
| Cattleya CharmianC. Charmian | | Jan 1 1932 | Alexander |
| Oncidium ParagonOnc. Paragon | | Jan 1 1932 | Alexander |
| Cymbidium HathorCym. Hathor | | Jan 1 1932 | Alexander |
| Cymbidium JulietCym. Juliet | | Jan 1 1932 | Alexander |
| Cymbidium RowenaCym. Rowena | | Jan 1 1932 | Alexander |
| Cymbidium LornaCym. Lorna | | Jan 1 1932 | Alexander |
| Cymbidium CynthiaCym. Cynthia | | Jan 1 1932 | Alexander |
| Cymbidium AndromedaCym. Andromeda | | Jan 1 1932 | Alexander |
| Cattleya AcheronC. Acheron | | Jan 1 1932 | Alexander |
| Cymbidium AphroditeCym. Aphrodite | | Jan 1 1932 | Alexander |
| Cymbidium DanteCym. Dante | | Jan 1 1932 | Alexander |
| Cymbidium AltheaCym. Althea | | Jan 1 1932 | Alexander |
| Cymbidium ArmynellCym. Armynell | | Jan 1 1932 | Alexander |
| Paphiopedilum LavengroPaph. Lavengro | | Jan 1 1932 | Alexander |
| Cymbidium EnidCym. Enid | | Jan 1 1932 | Alexander |
| Paphiopedilum VerityPaph. Verity | | Jan 1 1932 | Alexander |
| Paphiopedilum WotanPaph. Wotan | | Jan 1 1932 | Alexander |
| Cattleya JudithC. Judith | | Jan 1 1932 | Alexander |
| Rhyncholaeliocattleya DaphneRlc. Daphneintergeneric | | Jan 1 1932 | Alexander |
| Cymbidium DeliaCym. Delia | | Jan 1 1932 | Alexander |
| Paphiopedilum OmarPaph. Omar | | Jan 1 1931 | Alexander |
| Cattleya BacchusC. Bacchus | | Jan 1 1931 | Alexander |
| Paphiopedilum Golden BeautyPaph. Golden Beauty | | Jan 1 1931 | Alexander |
| Cattleya StromboliC. Stromboli | | Jan 1 1931 | Alexander |
| Paphiopedilum AthaliahPaph. Athaliah | | Jan 1 1931 | Alexander |
| Paphiopedilum YasminPaph. Yasmin | | Jan 1 1931 | Alexander |
| Cymbidium ThoraCym. Thora | | Jan 1 1931 | Alexander |
| Cattleya Coquette (1931)C. Coquette (1931) | | Jan 1 1931 | Alexander |
| Rhyncholaeliocattleya Calypso (1931)Rlc. Calypso (1931)intergeneric | | Jan 1 1931 | Alexander |
| Cymbidium FlamencoCym. Flamenco | | Jan 1 1931 | Alexander |
| Cymbidium CassandraCym. Cassandra | | Jan 1 1931 | Alexander |
| Cymbidium OlympusCym. Olympus | | Jan 1 1931 | Alexander |
| Paphiopedilum RimaPaph. Rima | | Jan 1 1931 | Alexander |
| Paphiopedilum ClaudianPaph. Claudian | | Jan 1 1931 | Alexander |
| Paphiopedilum TacitusPaph. Tacitus | | Jan 1 1931 | Alexander |
| Paphiopedilum Lavinia (1931)Paph. Lavinia (1931) | | Jan 1 1931 | Alexander |
| Cymbidium DoraCym. Dora | | Jan 1 1931 | Alexander |
| Cattleya Barbara (1931)C. Barbara (1931) | | Jan 1 1931 | Alexander |
| Paphiopedilum BrianPaph. Brian | | Jan 1 1931 | Alexander |
| Cattleya Golden CharmC. Golden Charm | | Jan 1 1931 | Alexander |
| Paphiopedilum NeroPaph. Nero | | Jan 1 1931 | Alexander |
| Cymbidium ThelmaCym. Thelma | | Jan 1 1931 | Alexander |
| Paphiopedilum CaligulaPaph. Caligula | | Jan 1 1931 | Alexander |
| Paphiopedilum MarionPaph. Marion | | Jan 1 1931 | Alexander |
| Cattleya Althea (1931)C. Althea (1931) | | Jan 1 1931 | Alexander |
| Cattleya Salome (1931)C. Salome (1931) | | Jan 1 1931 | Alexander |
| Paphiopedilum PearlPaph. Pearl | | Jan 1 1931 | Alexander |
| Paphiopedilum AudreyPaph. Audrey | | Jan 1 1931 | Alexander |
| Paphiopedilum RosinaPaph. Rosina | | Jan 1 1931 | Alexander |
| Cattleya JancisC. Jancis | | Jan 1 1931 | Alexander |
| Cymbidium HouriCym. Houri | | Jan 1 1930 | Alexander |
| Cymbidium CharmionCym. Charmion | | Jan 1 1930 | Alexander |
| Cymbidium JasonCym. Jason | | Jan 1 1930 | Alexander |
| Cattleya NepthysC. Nepthys | | Jan 1 1930 | Alexander |
| Cattleya Golden HornC. Golden Horn | | Jan 1 1930 | Alexander |
| Cymbidium MedeaCym. Medea | | Jan 1 1930 | Alexander |
| Cattleya Lady MunsterC. Lady Munster | | Jan 1 1930 | Alexander |
| Paphiopedilum SenecaPaph. Seneca | | Jan 1 1930 | Alexander |
| Cymbidium ValdaCym. Valda | | Jan 1 1930 | Alexander |
| Cattleya Vivien (1930)C. Vivien (1930) | | Jan 1 1930 | Alexander |
| Cymbidium EsmeCym. Esme | | Jan 1 1930 | Alexander |
| Paphiopedilum CandacePaph. Candace | | Jan 1 1930 | Alexander |
| Paphiopedilum BarabelPaph. Barabel | | Jan 1 1930 | Alexander |
| Cattleya Beacon (1930)C. Beacon (1930) | | Jan 1 1930 | Alexander |
| Cymbidium NestaCym. Nesta | | Jan 1 1930 | Alexander |
| Cymbidium ParsifalCym. Parsifal | | Jan 1 1930 | Alexander |
| Cymbidium MidasCym. Midas | | Jan 1 1930 | Alexander |
| Cattleya BaldurC. Baldur | | Jan 1 1930 | Alexander |
| Paphiopedilum HeatherPaph. Heather | | Jan 1 1930 | Alexander |
| Cattleya PompadourC. Pompadour | | Jan 1 1930 | Alexander |
| Paphiopedilum FreyaPaph. Freya | | Jan 1 1930 | Alexander |
| Cymbidium IbisCym. Ibis | | Jan 1 1930 | Alexander |
| Paphiopedilum SundownPaph. Sundown | | Jan 1 1930 | Alexander |
| Cymbidium ErosCym. Eros | | Jan 1 1930 | Alexander |
| Paphiopedilum HesperiaPaph. Hesperia | | Jan 1 1930 | Alexander |
| Paphiopedilum HerodiasPaph. Herodias | | Jan 1 1930 | Alexander |
| Cattleya Cleopatra (1930)C. Cleopatra (1930) | | Jan 1 1930 | Alexander |
| Cattleya Adonis (1930)C. Adonis (1930) | | Jan 1 1930 | Alexander |
| Cattleya Brenda (1930)C. Brenda (1930) | | Jan 1 1930 | Alexander |
| Paphiopedilum CathleenPaph. Cathleen | | Jan 1 1930 | Alexander |
| Paphiopedilum ClaricePaph. Clarice | | Jan 1 1930 | Alexander |
| Paphiopedilum RamesesPaph. Rameses | | Jan 1 1930 | Alexander |
| Cymbidium Golden OrioleCym. Golden Oriole | | Jan 1 1930 | Alexander |
| Cattleya Orange Gem (1929)C. Orange Gem (1929) | | Jan 1 1929 | Alexander |
| Cymbidium ZaraCym. Zara | | Jan 1 1929 | Alexander |
| Cymbidium IlmaCym. Ilma | | Jan 1 1929 | Alexander |
| Paphiopedilum PetrelPaph. Petrel | | Jan 1 1929 | Alexander |
| Cattleya IrasC. Iras | | Jan 1 1929 | Alexander |
| Paphiopedilum NaomiPaph. Naomi | | Jan 1 1929 | Alexander |
| Cymbidium MinivetCym. Minivet | | Jan 1 1929 | Alexander |
| Paphiopedilum RuffPaph. Ruff | | Jan 1 1929 | Alexander |
| Cattleya BereniceC. Berenice | | Jan 1 1929 | Alexander |
| Paphiopedilum HathorPaph. Hathor | | Jan 1 1929 | Alexander |
| Cymbidium BaldurCym. Baldur | | Jan 1 1929 | Alexander |
| Paphiopedilum Mrs. H. G. AlexanderPaph. Mrs. H. G. Alexander | | Jan 1 1929 | Alexander |
| Paphiopedilum MartinPaph. Martin | | Jan 1 1929 | Alexander |
| Paphiopedilum BalkisPaph. Balkis | | Jan 1 1929 | Alexander |
| Paphiopedilum GretalPaph. Gretal | | Jan 1 1929 | Alexander |
| Paphiopedilum SalomePaph. Salome | | Jan 1 1929 | Alexander |
| Cattleya Chloris (1929)C. Chloris (1929) | | Jan 1 1929 | Alexander |
| Cymbidium WhinchatCym. Whinchat | | Jan 1 1929 | Alexander |
| Paphiopedilum DamarisPaph. Damaris | | Jan 1 1929 | Alexander |
| Paphiopedilum IshtarPaph. Ishtar | | Jan 1 1929 | Alexander |
| Cymbidium OphirCym. Ophir | | Jan 1 1929 | Alexander |
| Paphiopedilum EnaPaph. Ena | | Jan 1 1929 | Alexander |
| Cymbidium UndineCym. Undine | | Jan 1 1929 | Alexander |
| Paphiopedilum ValeriaPaph. Valeria | | Jan 1 1929 | Alexander |
| Cymbidium JessicaCym. Jessica | | Jan 1 1929 | Alexander |
| Paphiopedilum RubyPaph. Ruby | | Jan 1 1928 | Alexander |
| Cymbidium DaceloCym. Dacelo | | Jan 1 1928 | Alexander |
| Paphiopedilum PomonaPaph. Pomona | | Jan 1 1928 | Alexander |
| Rhyncholaeliocattleya Orange GloryRlc. Orange Gloryintergeneric | | Jan 1 1928 | Alexander |
| Cymbidium RedcapCym. Redcap | | Jan 1 1928 | Alexander |
| Rhyncholaeliocattleya Yellow HammerRlc. Yellow Hammerintergeneric | | Jan 1 1928 | Alexander |
| Paphiopedilum MikadoPaph. Mikado | | Jan 1 1928 | Alexander |
| Cymbidium CondorCym. Condor | | Jan 1 1928 | Alexander |
| Rhyncholaeliocattleya LettyRlc. Lettyintergeneric | | Jan 1 1928 | Alexander |
| Paphiopedilum RedstarPaph. Redstar | | Jan 1 1928 | Alexander |
| Cymbidium LadybirdCym. Ladybird | | Jan 1 1928 | Alexander |
| Paphiopedilum CygnetPaph. Cygnet | | Jan 1 1928 | Alexander |
| Cymbidium RuffCym. Ruff | | Jan 1 1928 | Alexander |
| Cymbidium MorvythCym. Morvyth | | Jan 1 1928 | Alexander |
| Cattleya MarabouC. Marabou | | Jan 1 1928 | Alexander |
| Paphiopedilum GnomePaph. Gnome | | Jan 1 1928 | Alexander |
| Paphiopedilum GerdaPaph. Gerda | | Jan 1 1928 | Alexander |
| Cattleya Lady MelchettC. Lady Melchett | | Jan 1 1928 | Alexander |
| Cymbidium MarabouCym. Marabou | | Jan 1 1928 | Alexander |
| Cymbidium WhitethroatCym. Whitethroat | | Jan 1 1928 | Alexander |
| Cattleya Cassandra (1928)C. Cassandra (1928) | | Jan 1 1928 | Alexander |
| Cymbidium GoldfinchCym. Goldfinch | | Jan 1 1928 | Alexander |
| Paphiopedilum MacawPaph. Macaw | | Jan 1 1928 | Alexander |
| Paphiopedilum OtusPaph. Otus | | Jan 1 1928 | Alexander |
| Cymbidium MollieCym. Mollie | | Jan 1 1928 | Alexander |
| Cattleya Melpomene (1928)C. Melpomene (1928) | | Jan 1 1928 | Alexander |
| Cattleya Mogul (1928)C. Mogul (1928) | | Jan 1 1928 | Alexander |
| Paphiopedilum AgnarPaph. Agnar | | Jan 1 1928 | Alexander |
| Cattlianthe PorciaCtt. Porciaintergeneric | | Jan 1 1927 | Alexander |
| Cymbidium RedwingCym. Redwing | | Jan 1 1927 | Alexander |
| Paphiopedilum MidasPaph. Midas | | Jan 1 1927 | Alexander |
| Paphiopedilum JulietPaph. Juliet | | Jan 1 1927 | Alexander |
| Cattleya DirceC. Dirce | | Jan 1 1927 | Alexander |
| Cattleya MolochC. Moloch | | Jan 1 1927 | Alexander |
| Paphiopedilum BedouinPaph. Bedouin | | Jan 1 1927 | Alexander |
| Cymbidium RosannaCym. Rosanna | | Jan 1 1927 | Alexander |
| Cattleya Lucifer (1927)C. Lucifer (1927) | | Jan 1 1927 | Alexander |
| Cymbidium OspreyCym. Osprey | | Jan 1 1927 | Alexander |
| Paphiopedilum NeleusPaph. Neleus | | Jan 1 1927 | Alexander |
| Cattleya RedstarC. Redstar | | Jan 1 1927 | Alexander |
| Cymbidium PuffinCym. Puffin | | Jan 1 1927 | Alexander |
| Paphiopedilum IlmaPaph. Ilma | | Jan 1 1927 | Alexander |
| Cattleya EgretC. Egret | | Jan 1 1927 | Alexander |
| Cymbidium LettyCym. Letty | | Jan 1 1927 | Alexander |
| Cattleya Jean (1927)C. Jean (1927) | | Jan 1 1927 | Alexander |
| Cattleya Golden EagleC. Golden Eagle | | Dec 1 1923 | Alexander |
| Miltoniopsis J. Gurney FowlerMps. J. Gurney Fowlerintergenericprimary | | Jun 13 1914 | Alexander |