| Cattleya Hardyano-WarneriC. Hardyano-Warneri | | Jan 1 1910 | N.C.Cookson |
| Oncidium TitaniaOnc. Titania | | Jan 1 1910 | N.C.Cookson |
| Paphiopedilum Alexander the GreatPaph. Alexander the Greatprimary | | Jan 1 1910 | N.C.Cookson |
| Oncidium Cooksoniae (1909)Onc. Cooksoniae (1909) | | Jan 1 1909 | N.C.Cookson |
| Oncidium CooksonianumOnc. Cooksonianum | | Jan 1 1909 | N.C.Cookson |
| Calanthe AngelaCal. Angela | | Dec 22 1908 | N.C.Cookson |
| Cattleya Angela (1908)C. Angela (1908)primary | | Jan 1 1908 | N.C.Cookson |
| Calanthe Norman (1908)Cal. Norman (1908)primary | | Jan 1 1908 | N.C.Cookson |
| Paphiopedilum Io-ArgusPaph. Io-Argus | | Jan 1 1907 | N.C.Cookson |
| Cattleya ChapmaniiC. Chapmanii | | Jan 13 1906 | N.C.Cookson |
| Cattleya CooksoniiC. Cooksonii | | Jan 1 1906 | N.C.Cookson |
| Cattleya Lambeauiae (1911)C. Lambeauiae (1911)primary | | Jan 1 1906 | N.C.Cookson |
| Calanthe DorisCal. Doris | | Jan 1 1906 | N.C.Cookson |
| Calanthe MagpieCal. Magpieintergeneric | | Jan 1 1905 | N.C.Cookson |
| Cattleya Oakwood BetaC. Oakwood Beta | | Jan 1 1905 | N.C.Cookson |
| Paphiopedilum Don Carlos (1905)Paph. Don Carlos (1905)primary | | Jan 1 1905 | N.C.Cookson |
| Cattleya Oakwood DeltaC. Oakwood Delta | | Jan 1 1905 | N.C.Cookson |
| Paphiopedilum SanacderaePaph. Sanacderae | | Jan 1 1905 | Wellesley |
| Calanthe TriumphansCal. Triumphansintergeneric | | Jan 1 1905 | N.C.Cookson |
| Paphiopedilum SanacteusPaph. Sanacteus | | Jan 1 1905 | N.C.Cookson |
| Cattleya GammaC. Gamma | | Jan 1 1905 | N.C.Cookson |
| Cattleya Oakwood AlphaC. Oakwood Alpha | | Jan 1 1905 | N.C.Cookson |
| Cattleya AlphaC. Alpha | | Jan 1 1905 | N.C.Cookson |
| Paphiopedilum Cooksonii (1905)Paph. Cooksonii (1905)primary | | Jan 1 1905 | N.C.Cookson |
| Cattleya Oakwood GammaC. Oakwood Gamma | | Jan 1 1905 | N.C.Cookson |
| Calanthe ChapmaniiCal. Chapmanii | | Jan 1 1905 | N.C.Cookson |
| Cattleya OakwoodiensisC. Oakwoodiensis | | Jan 1 1904 | N.C.Cookson |
| Paphiopedilum The PelicanPaph. The Pelican | | Jan 1 1904 | N.C.Cookson |
| Paphiopedilum PelicanPaph. Pelican | | Jan 1 1904 | N.C.Cookson |
| Dendrobium MacjapDen. Macjapprimary | | Jan 1 1904 | N.C.Cookson |
| Dendrobium Nobile-WiganiaeDen. Nobile-Wiganiae | | Jan 1 1904 | N.C.Cookson |
| Dendrobium Mac-japDen. Mac-japprimary | | Jan 1 1904 | N.C.Cookson |
| Paphiopedilum Dom CarlosPaph. Dom Carlosprimary | | Jan 1 1904 | N.C.Cookson |
| Dendrobium CooksoniDen. Cooksoni | | Jan 1 1904 | N.C.Cookson |
| Calanthe Harold (1903)Cal. Harold (1903) | | Jan 1 1903 | N.C.Cookson |
| Calanthe Chapmanii (1903)Cal. Chapmanii (1903) | | Jan 1 1903 | N.C.Cookson |
| Paphiopedilum Youngiano-superbiensPaph. Youngiano-superbiens | | Jan 1 1903 | N.C.Cookson |
| Calanthe SibylCal. Sibyl | | Jan 1 1903 | N.C.Cookson |
| Paphiopedilum IraPaph. Ira | | Jan 1 1903 | N.C.Cookson |
| Calanthe Clive (1903)Cal. Clive (1903) | | Jan 1 1903 | N.C.Cookson |
| Calanthe Ruby (Cookson)Cal. Ruby (Cookson) | | Jan 1 1902 | N.C.Cookson |
| Cattleya CooksoniaeC. Cooksoniae | | Jan 1 1902 | N.C.Cookson |
| Oncidium CliveOnc. Clive | | Jan 1 1902 | N.C.Cookson |
| Calanthe Ruby (1902)Cal. Ruby (1902) | | Jan 1 1902 | N.C.Cookson |
| Dendrobium LotusDen. Lotusprimary | | Jan 1 1901 | N.C.Cookson |
| Calanthe OakwoodiensisCal. Oakwoodiensis | | Jan 1 1900 | N.C.Cookson |
| Paphiopedilum Sanderiano-CurtisiiPaph. Sanderiano-Curtisiiprimary | | Jan 1 1900 | N.C.Cookson |
| Calanthe Atro-RubensCal. Atro-Rubens | | Jan 1 1900 | N.C.Cookson |
| Paphiopedilum CooksonaePaph. Cooksonaeprimary | | Jan 1 1900 | N.C.Cookson |
| Calanthe NormaniiCal. Normaniiprimary | | Jan 1 1899 | N.C.Cookson |
| Calanthe KennethCal. Kennethprimary | | Jan 1 1899 | N.C.Cookson |
| Paphiopedilum San-ActaeusPaph. San-Actaeus | | Jan 1 1899 | N.C.Cookson |
| Calanthe Phoebe (1899)Cal. Phoebe (1899)primary | | Jan 1 1899 | N.C.Cookson |
| Calanthe GrandisCal. Grandis | | Jan 1 1898 | N.C.Cookson |
| Calanthe SplendensCal. Splendens | | Jan 1 1898 | N.C.Cookson |
| Paphiopedilum NansenPaph. Nansen | | Jan 1 1897 | N.C.Cookson |
| Laeliocattleya JunoLc. Junointergenericprimary | | Jan 1 1897 | N.C.Cookson |
| Calanthe Norman (1897)Cal. Norman (1897)primary | | Jan 1 1897 | N.C.Cookson |
| Dendrobium HaroldDen. Haroldprimary | | Jan 1 1896 | N.C.Cookson |
| Cattleya Bryan (1896)C. Bryan (1896)primary | | Jan 1 1896 | N.C.Cookson |
| Dendrobium KennethDen. Kennethprimary | | Jan 1 1896 | N.C.Cookson |
| Calanthe CliveCal. Cliveintergeneric | | Jan 1 1896 | N.C.Cookson |
| Paphiopedilum ChapmaniiPaph. Chapmaniiprimary | | Jan 1 1896 | N.C.Cookson |
| Dendrobium AstraeaDen. Astraeaprimary | | Jan 1 1895 | N.C.Cookson |
| Calanthe Cooksonae (1895)Cal. Cooksonae (1895)primary | | Jan 1 1895 | N.C.Cookson |
| Dendrobium MurrayiDen. Murrayiprimary | | Jan 1 1895 | N.C.Cookson |
| Paphiopedilum CyrisPaph. Cyrisprimary | | Jan 1 1894 | N.C.Cookson |
| Dendrobium DorisDen. Doris | | Jan 1 1894 | N.C.Cookson |
| Paphiopedilum AurosumPaph. Aurosumprimary | | Jan 1 1894 | N.C.Cookson |
| Calanthe BryanCal. Bryanprimary | | Jan 1 1894 | N.C.Cookson |
| Cattleya Doris (1894)C. Doris (1894)primary | | Jan 1 1894 | N.C.Cookson |
| Cattleya HaroldC. Haroldprimary | | May 13 1893 | N.C.Cookson |
| Dendrobium SybilDen. Sybilprimary | | Jan 1 1893 | N.C.Cookson |
| Cattleya Clive (1893)C. Clive (1893)primary | | Jan 1 1893 | N.C.Cookson |
| Calanthe Oakwood RubyCal. Oakwood Ruby | | Jan 1 1893 | N.C.Cookson |
| Dendrobium SibylDen. Sibylprimary | | Jan 1 1893 | N.C.Cookson |
| Cattleya William MurrayC. William Murrayprimary | | Jan 1 1893 | N.C.Cookson |
| Paphiopedilum Vexill-IoPaph. Vexill-Io | | Jan 1 1893 | N.C.Cookson |
| Paphiopedilum Sanderiano-SuperbiensPaph. Sanderiano-Superbiensprimary | | Jan 1 1893 | N.C.Cookson |
| Calanthe RubyCal. Ruby | | Jan 1 1893 | N.C.Cookson |
| Paphiopedilum AndromedaPaph. Andromedaprimary | | Jan 1 1893 | N.C.Cookson |
| Dendrobium BryanDen. Bryanprimary | | Jan 1 1893 | N.C.Cookson |
| Paphiopedilum DorisPaph. Dorisprimary | | Dec 20 1890 | N.C.Cookson |
| Calanthe CooksoniiCal. Cooksoniiprimary | | Mar 15 1890 | N.C.Cookson |
| Dendrobium CassiopeDen. Cassiopeprimary | | Feb 1 1890 | N.C.Cookson |
| Dendrobium VenusDen. Venusprimary | | Jan 1 1890 | N.C.Cookson |
| Paphiopedilum PitcherianumPaph. Pitcherianum | | Jan 1 1889 | N.C.Cookson |
| Paphiopedilum SavageanumPaph. Savageanum | | Jan 1 1889 | N.C.Cookson |
| Paphiopedilum GodseffianumPaph. Godseffianumprimary | | Jan 1 1889 | N.C.Cookson |
| Masdevallia CourtauldianaMasd. Courtauldianaprimary | | Jan 1 1889 | N.C.Cookson |
| Phragmipedium NitidissimumPhrag. Nitidissimum | | Jan 1 1888 | N.C.Cookson |
| Paphiopedilum AlmumPaph. Almumprimary | | Apr 16 1887 | N.C.Cookson |
| Paphiopedilum AuroreumPaph. Auroreumprimary | | Jan 1 1887 | N.C.Cookson |
| Paphiopedilum Cooksoni (1887)Paph. Cooksoni (1887)primary | | Jan 1 1887 | N.C.Cookson |
| Paphiopedilum CooksonianumPaph. Cooksonianumprimary | | Jan 1 1887 | N.C.Cookson |
| Paphiopedilum Eldorado (1886)Paph. Eldorado (1886)primary | | Jan 1 1886 | N.C.Cookson |
| Paphiopedilum IoPaph. Ioprimary | | Jan 1 1886 | N.C.Cookson |