Phalaenopsis William Nawa
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Vanda William O. White
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Phalaenopsis William of Orange
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Cattleya William of Woodlawn
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Cattleya William P. Roth
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Vanda William Paddock
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Cymbidium William Pettersson
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Miltoniopsis William Pitt
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Cattleya William Pitt (1902)
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Cattleya William Pitt (1919)
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Cymbidium William Pownall
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Vanda William Rasco
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Phalaenopsis William Ray
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Cattleya William Romanoff
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Cattleya William Rupert
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Vanda William Sa Ning
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Phalaenopsis William Sanders
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Cattleya William Sanders
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Phalaenopsis William Schuman
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Phalaenopsis William Shaffer
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Phalaenopsis William Smith
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Cattleya William Smith
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Vanda William Starke
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Cymbidium William Stewart