Catasetum × apertum
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Catasetum × apolloi
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Lycaste × archilae
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Rhynchostele × ashworthiana
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Ionopsis × atalibae
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Epipactis × athensis
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Cattleya × bahiensis
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Encyclia × bajamarensis
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Oncidium × baldin
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Lycaste × balliae
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Pleione × baoshanensis
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Pleione × barbarae
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Cattleya × batalinii
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Epidendrum × belmillerae
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Cymbidium × bennett-poei
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Oncidium × berenyce pro hyb
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Phalaenopsis × bertii
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Cattleya × binotii
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Miltonia × binotii
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Miltonia × bleui
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Miltoniopsis × bleui
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Cattleya × blossfeldiana
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Vanda × boumaniae
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Cattleya × brasiliensis