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CCDB → Angiosperms → Cactaceae → Mammillaria → Mammillaria wrightii Engelm.

2 chromosome counts in Mammillaria wrightii Engelm.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
		Mammillaria wrightii var. wrightii	Mammillaria wrightii Engelm.		22, c.44	IPCN online	WEEDIN, J. F., A. M. Powell & D. O. Kolle. 1989. Chromosome numbers in Chihuahuan Desert Cactaceae. II. Trans-Pecos Texas. S. W. Naturalist 34: 160–164.
!		Mammillaria wrightii Engelm.	Mammillaria wrightii Engelm.		22	eFlora