CCDBAngiospermsCactaceaeOpuntiaOpuntia nicholii L. D. Benson

3 chromosome counts in Opuntia nicholii L. D. Benson:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
!   Opuntia nicholii L. D. Benson Opuntia polyacantha var. nicholii (L. D. Benson) B. D. Parfitt   66 IPCN online Pinkava, D. J., B. D. Parfitt, M. A. Baker & R. D. Worthington. 1992. Chromosome numbers in some cacti of western North America---VI, with nomenclatural changes. Madroño 39(2): 98–113.
!   Opuntia nicholii L. D. Benson Opuntia polyacantha var. nicholii (L. D. Benson) B. D. Parfitt 33   IPCN online Pinkava, D. J., L. A. MCGILL & T. REEVES. 1977. Chromosome numbers in some cacti of western North America---III. Bull. Torrey Bot. Club 104: 105–110.
!   Opuntia nicholii L. D. Benson Opuntia polyacantha var. nicholii (L. D. Benson) B. D. Parfitt 33   IPCN75-78 Pinkava et al. 1977