Cattleya Alta East
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Cattleya Alta Mesa
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Cattleya Altaïr
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Cattleya Altadena
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Cattleya Altamont
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Cattleya Altandi
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Cattleya Alten
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Cattleya Altesse
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Cattleya Althaea
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Cattleya Althea (1926)
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Cattleya Althea (1931)
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Cattleya Althea Hausermann
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Encyclia altissima
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Epidendrum altissimum
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Cattleya Altona
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Cattleya Altos
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Catyclia Altulossa
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Cattleya Altura
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Cattleya Alum Rock
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Cattleya Alumni
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Cattleya alutacea
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Cattleya Alva
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Cattleya Alvaro La Rocque
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Laelia alvaroana