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Phragmipedium wallisii (Rchb. f.) Garay
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Garay, L. A. 1978. 225(1). Orchidaceae (Cypripedioideae, Orchidoideae, Neottioideae). 9: 1–305. In G. W. Harling & B. B. Sparre (eds.) Fl. Ecuador. University of Göteborg & Swedish Museum of Natural History, Göteborg & Stockholm.
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