Catasetum Sebastião Ferreira
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Oncidium Sebastia
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Lycaste Sebastian
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Cymbidium Sebastian Bailey
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Oncidium Sechelt
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Miltoniopsis Second Arthur
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Miltoniopsis Second Chance
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Miltoniopsis Second Love
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Cymbidium Second Renaissance
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Mormodes Second Sin
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Cymbidium Secret Affair
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Cymbidium Secret Heart
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Cymbidium Secret Love
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Cymbidium Secret Memory
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Cymbidium Secret Season
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Cymbidium Secret Vintage
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Cymbidium Secretariat
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Rodriguezia secunda
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Thecopus secunda
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Zygopetalum Secundum
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Catasetum Secundum
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Cymbidium Sedeni
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Cymbidium Sedenii
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Zygopetalum Sedenii