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CCDB → Angiosperms → Bignoniaceae → Catalpa → Catalpa ovata G. Don

6 chromosome counts in Catalpa ovata G. Don:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
		Catalpa ovata G. Don	Catalpa ovata G. Don		40	IPCN online	Suessenguth, K. 1942. Neue Pflanzen aus Costa Rica, insbesondere vom Chirripó Grande 3837m. Bot. Jahrb. Syst. 72(2): 270–302.
		Catalpa ovata G. Don	Catalpa ovata G. Don		40	IPCN online	Huang, S. f., Z. f. Zhao, Z. y. Chen, S. j. Chen & X. x. Huang. 1989. Chromosome counts on one hundred species and infraspecific taxa. Acta Bot. Austro Sin. 5: 161–176.
!		Catalpa ovata G. Don	Catalpa ovata G. Don		40	eFlora
!		Catalpa ovata G. Don	Catalpa ovata G. Don		40	Fedorov, 1974	Smith E. C. 1941
!		Catalpa ovata G. Don	Catalpa ovata G. Don		40	Darlington, 1955
!		Catalpa ovata G. Don	Catalpa ovata G. Don		40	Cave1956supp	Suzuka 1953