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CCDB → Angiosperms → Gentianaceae → Swertia → Swertia angustifolia B. -Ham.

9 chromosome counts in Swertia angustifolia B. -Ham.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
!		Swertia angustifolia B. -Ham.	Swertia angustifolia B. -Ham. ex D. Don	12		IPCN67-71	MEHRA, P.M., & L.S. GILL. 1968. In IOPB chromosome number reports XVI. Taxon 17: 199-204.
!		Swertia angustifolia B. -Ham. ex D. Don	Swertia angustifolia B. -Ham. ex D. Don		26	IPCN online	Mallikarjuna, M. B. 1985. Karyomorphological and cytotaxonomic studies in the family Gentianaceae. Ph.D. Thesis, Bangalore University. ý.
!		Swertia angustifolia B. -Ham. ex D. Don	Swertia angustifolia B. -Ham. ex D. Don	13		IPCN online	VASUDEVAN, K. N. 1975. Contribution to the cytotaxonomy and cytogeography of the flora of the western Himalayas (with an attempt to compare it with the flora of the Alps). Part II. Ber. Schweiz. Bot. Ges. 85: 210–252.
!		Swertia angustifolia B. -Ham. ex D. Don	Swertia angustifolia B. -Ham. ex D. Don	13		IPCN75-78	Vasudevan 1975
!		Swertia angustifolia B. -Ham. ex D. Don	Swertia angustifolia B. -Ham. ex D. Don		24	Kumar, 1987	Mehra, P.N. & Gill, L.S. 1968a
!		Swertia angustifolia B. -Ham. ex D. Don	Swertia angustifolia B. -Ham. ex D. Don		26	Kumar, 1987	Khoshoo, T.N. & Tandon, S.R. 1963
!		Swertia angustifolia B. -Ham. ex D. Don	Swertia angustifolia B. -Ham. ex D. Don		26	eFlora
!		Swertia angustifolia B. -Ham. ex D. Don	Swertia angustifolia B. -Ham. ex D. Don		26	Fedorov, 1974	Khoshoo. Tandon 1963
!		Swertia angustifolia B. -Ham. ex D. Don	Swertia angustifolia B. -Ham. ex D. Don	13		Cave1963	Khoshoo & T. 1963