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CCDB → Angiosperms → Rubiaceae → Houstonia → Houstonia rubra Cav.

2 chromosome counts in Houstonia rubra Cav.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
		Hedyotis rubra (Cav.) A. Gray	Houstonia rubra Cav.	11		IPCN online	Parfitt, B. D., M. A. Baker & M. L. Gallagher. 1985. Chromosome Number Reports LXXXVI. Taxon 34: 159–164.
!		Hedyotis rubra (Cav.) A. Gray	Houstonia rubra Cav.		22	Cave1962	Lewis 1962a