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CCDB → Pteridophytes → Osmundaceae → Osmunda → Osmunda × ruggii

3 chromosome counts in Osmunda × ruggii:

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Median Minimum Max Distribution

		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
!		Osmunda × ruggii	Osmunda × ruggii Tryon		44	eFlora
!		Osmunda × ruggii Tryon	Osmunda × ruggii Tryon	44II		IPCN online	Wagner, W. H. J., F. S. Wagner, C. N. J. Miller & D. H. Wagner. 1978. New observations on the royal fern hybrid Osmunda X ruggii. Rhodora 92–106.
!		Osmunda × ruggii Tryon	Osmunda × ruggii Tryon	44II		IPCN75-78	Wagner et al. 1978