Reference:Sheviak1992a
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Verbatim text: Sheviak, C. J. 1992. Natural hybridization between Cypripedium montanum and its yellow-lipped relatives. Amer. Orchid Soc. Bull. 61: 546–559.
Author: Sheviak, C.J.
Year: 1992
Title: Natural hybridization between Cypripedium montanum and its yellow-lipped relatives
Journal: Amer. Orchid Soc. Bull
Volume: 61
Pages: 546–559