Tolumnia × sanctae-anae
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Lycaste × sandrae
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Catasetum × santo-antoniense
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Gomesa × scullyi
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Oncidium × scullyii
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Catasetum × semiroseum
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Cymbidium × shangrilaense
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Catasetum × sheyllae
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Lycaste × smeeana
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Lycaste × smeeana
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Catasetum × sodiroi
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Catasetum × splendens
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Gomesa × stanleyi
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Oncidium × stanleyi
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Oncidium × strobeliorum
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Lycaste × sulphurea
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Catasetum × tapiriceps
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Trichocentrum × teaboanum
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Gomesa × terassaniana
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Cymbidium × tortisepalum
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Cymbidium × tortisepalum var. longibracteatum
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Catasetum × trilobatum
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Oncidium × unguitigrinum
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Cymbidium × uniflorum