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CCDB → Pteridophytes → Polypodiaceae → Serpocaulon → Polypodium ptilorhizon Christ

4 chromosome counts in Polypodium ptilorhizon Christ:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
!		Polypodium ptilorhizon Christ	Serpocaulon ptilorhizon (Christ) A. R. Sm.	37		IPCN65	Sorsa in F. 1965
!		Polypodium ptilorhizon Christ	Serpocaulon ptilorhizon (Christ) A. R. Sm.	37		IPCN66	Sorsa 1966a
!		Polypodium ptilorhizon Christ	Serpocaulon ptilorhizon (Christ) A. R. Sm.		74	Love, 1977	Sorsa (in Fabbri 1965)
!		Polypodium ptilorhizon Christ	Serpocaulon ptilorhizon (Christ) A. R. Sm.		74	Love, 1977	Sorsa 1966a