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CCDB → Angiosperms → Orchidaceae → Gymnadenia → Nigritella nigra (L.) Rchb.

13 chromosome counts in Nigritella nigra (L.) Rchb.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
!		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.	19	38	CHROBASE	CHIARUGI A. - 1929. Diploidismo con anfimissia e tetraploidismo con apomissia in una medesima specie "Nigritella nigra" Rchb. . Boll. Soc. Ital. Biol. Sperim. , 4(6): 659-661.
!		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.		64	Flora Europaea	Lovka et al.,
!		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.		40	Kamari Mediterranean
		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.		40	IPCN online	Ruiz, L. 1995. Mediterranean chromosome number reports 5 (559--589). Fl. Medit. 5: 363–373.
!		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.		60	IPCN online	Teppner, H. & E. Klein. 1990. Nigritella rhellicani spec. nova und N. nigra (L.) Rchb. f. s. str. (Orchidaceae---Orchideae). Phyton (Horn) 31: 5–26.
!		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.		80	IPCN online	Klein, E. & A. Drescher. 1996. Nigritella nigra (Orchidaceae---Orchideae) im Massif Central (Frankreich). Phyton (Horn) 36: 213–250.
		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.		64	IPCN72	LOVKA, M., F. SUSNIK, A. LOEVE, & D. LOEVE. 1972. In IOPB chromosome number reports XXXVI. Taxon 21: 333-346.
!		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.		64	IPCN67-71	KNABEN, G., & T. ENGELSKJON. 1967. Chromosome numbers of Scandinavian arctic-alpine plant species. II. Act. Boreal. A. Sci. No. 21: 1-57.
!		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.		64	Love, 1948	Afzelius 1943.
!		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.		40	Love, 1948	Reusser 1938.
!		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.		38	Love, 1948	Chiarugi 1929.
!		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.		40	Darlington, 1955	Heusser 1938
!		Nigritella nigra (L.) Rchb.	Gymnadenia nigra (L.) Rchb.		64	Darlington, 1955	Afzelius 1943