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CCDB → Angiosperms → Betulaceae → Betula → Betula cycoviensis Steud.

3 chromosome counts in Betula cycoviensis Steud.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
!		Betula cycoviensis Steud.	Betula pendula var. oycowiensis (Besser) Dippel		28	Poland Database	Skali?ska M., Czapik R., Piotrowicz M. et al. 1959. Further studies in chromosome numbers of Polish Angiosperms (Dicotyledons). Acta Soc. Bot. Pol. 28, 487-529.
!		Betula cycoviensis Steud.	Betula pendula var. oycowiensis (Besser) Dippel		28	Poland Database	Szwabowicz A. 1972. Badania kariologiczne brzozy ojcowskiej i jej potomstwa. Acta Soc. Bot. Pol. 41, 235-252.
!		Betula cycoviensis Steud.	Betula pendula var. oycowiensis (Besser) Dippel		28	IPCN72	SZWABOWICZ, A. 1972. Badania kariologiczne brzozy ojcowskiej jej potomstwa. Acta soc. Bot. Poloniae 41: 235-252.