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CCDB → Angiosperms → Orchidaceae → Cypripedium → Cypripedium reginae Walter

4 chromosome counts in Cypripedium reginae Walter:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
		Cypripedium reginae Walter	Cypripedium reginae Walter		20	IPCN online	Love, A. & D. Love. 1981c. In Chromosome number reports LXXIII. Taxon 30: 845–851.
!		Cypripedium reginae Walter	Cypripedium reginae Walter		20	IPCN67-71	LOEVE, A., & w. SIMON. 1968. Cytotaxonomical notes on some American orchids. southw. Naturalist 13: 335-342.
!		Cypripedium reginae Walter	Cypripedium reginae Walter		20	eFlora
!		Cypripedium reginae Walter	Cypripedium reginae Walter		22	Darlington, 1955