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CCDB → Angiosperms → Compositae → Hymenoxys → Hymenoxys richardsonii (Hook.) Cockerell

13 chromosome counts in Hymenoxys richardsonii (Hook.) Cockerell:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
		Hymenoxys richardsonii var. richardsonii	Hymenoxys richardsonii (Hook.) Cockerell	15(2)		Asteracea	Strother 1966 Southw. Naturalist
!		Hymenoxys richardsonii (Hook.) Cockerell	Hymenoxys richardsonii (Hook.) Cockerell	28(1)		Asteracea	Weedin & P. 1980 Taxon
		Hymenoxys richardsonii (Hook.) Cockerell	Hymenoxys richardsonii (Hook.) Cockerell		30	IPCN online	Chinnappa, C. C. & J. G. Chmielewski. 1987. Documented plant chromosome numbers 1987: 1. Miscellaneous counts from western North America. Sida 12: 409–417.
		Hymenoxys richardsonii (Hook.) Cockerell	Hymenoxys richardsonii (Hook.) Cockerell	15		IPCN online	Parfitt, B. D., M. A. Baker & M. L. Gallagher. 1985. Chromosome Number Reports LXXXVI. Taxon 34: 159–164.
		Hymenoxys richardsonii (Hook.) Cockerell	Hymenoxys richardsonii (Hook.) Cockerell	15II		IPCN online	Keil, D. J., M. A. Luckow & D. J. Pinkava. 1988. Chromosome studies in Asteraceae from the United States, Mexico, the West Indies, and South America. Amer. J. Bot. 75: 652–668.
		Hymenoxys richardsonii (Hook.) Cockerell	Hymenoxys richardsonii (Hook.) Cockerell	28		IPCN online	WEEDIN, J. F. & A. M. POWELL. 1980. In Chromosome number reports LXIX. Taxon 29: 716–718.
		Hymenoxys richardsonii (Hook.) Cockerell	Hymenoxys richardsonii (Hook.) Cockerell	15		IPCN online	Hartman, R. L. 1977. In IOPB chromosome number reports LVI. Taxon 26: 257–274.
		Hymenoxys richardsonii (Hook.) Cockerell	Hymenoxys richardsonii (Hook.) Cockerell	14		IPCN66	Taylor & Brockman 1966
!		Hymenoxys richardsonii subsp. richardsonii	Hymenoxys richardsonii (Hook.) Cockerell	15		IPCN66	Strother 1966a
!		Hymenoxys richardsonii (Hook.) Cockerell	Hymenoxys richardsonii (Hook.) Cockerell		30	IPCN73-74	KOVANDA, M. 1972. Somatic chromosome numbers for some Asteraceae. Rhodora 74: 102-116.
		Hymenoxys richardsonii (Hook.) Cockerell	Hymenoxys richardsonii (Hook.) Cockerell	15		IPCN73-74	WATSON, T.J., Jr. 1973. Chromosome numbers in Compositae from the southwestern United states. Southw. Naturalist 18: 117-124.
!		Hymenoxys richardsonii (Hook.) Cockerell	Hymenoxys richardsonii (Hook.) Cockerell		30	eFlora
		Hymenoxys richardsonii var. richardsonii	Hymenoxys richardsonii (Hook.) Cockerell		30	eFlora