Bifrenaria tetragona
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Tolumnia tetrapetala
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Oncidium tetrapetalum
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Rodriguezia teuscheri
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Cymbidium Tewkesbury
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Oncidium Tewksburys Ecectus
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Tolumnia Texan Rose
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Oncidium Texmex
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Mormodes tezontle
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Oncidium Thadeus
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Miltoniopsis Thai Airways International
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Miltoniopsis Thai Chaiyaphum
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Trichocentrum Thai Dancer
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Miltoniopsis Thai Phanom Sarakham
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Miltoniopsis Thai Uthai Thani
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Cymbidium Thais
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Oncidium Thais
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Oncidium Thais (1927)
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Cymbidium Thalassa
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Cymbidium Thalia
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Oncidium Thalia
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Oncidium Thalia (1922)
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Oncidium Thalia Gold
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Cymbidium Tham