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Prof. Itay Mayrose Lab – Plant Evolution, Bioinformatics, & Comparative Genomics







CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous, please submit new counts, or report erroneous counts.


CCDB → Angiosperms → Cactaceae → Opuntia → Opuntia phaeacantha var. major Engelm.

11 chromosome counts in Opuntia phaeacantha var. major Engelm.:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Opuntia phaeacantha var. major Engelm. Opuntia phaeacantha Engelm. 33   IPCN online Pinkava, D. J. & B. D. Parfitt. 1982. Chromosome numbers in some cacti of western North America IV. Bull Torrey Bot. Club. 109: 121–128.
  Opuntia phaeacantha var. major Engelm. Opuntia phaeacantha Engelm. 33   IPCN online Pinkava, D. J., M. A. Baker, B. D. Parfitt, M. W. Mohlenbrock & R. D. Worthington. 1985. Chromosome numbers in some cacti of western North America-V. Syst. Bot. 10: 471–483.
  Opuntia phaeacantha var. major Engelm. Opuntia phaeacantha Engelm.   66 IPCN online WEEDIN, J. F., A. M. Powell & D. O. Kolle. 1989. Chromosome numbers in Chihuahuan Desert Cactaceae. II. Trans-Pecos Texas. S. W. Naturalist 34: 160–164.
  Opuntia phaeacantha var. major Engelm. Opuntia phaeacantha Engelm. 33 77 IPCN online McLeod, M. G. 1975. A new hybrid fleshy-fruited prickly pear in California. Madroño 23: 96–98.
  Opuntia phaeacantha var. major Engelm. Opuntia phaeacantha Engelm. 33 44,66 IPCN online Parfitt, B. D. 1980. Origin of Opuntia curvospina (Cactaceae). Syst. Bot. 5: 408–418.
  Opuntia phaeacantha var. major Engelm. Opuntia phaeacantha Engelm. 33   IPCN online Parfitt, B. D. 1978. In IOPB chromosome number reports LIX. Taxon 27: 53–61.
!   Opuntia phaeacantha var. major Engelm. Opuntia phaeacantha Engelm. 33   IPCN67-71 PINKAVA, D.J., & M.G. MCLEOD. 1971. Chromosome numbers in some cacti of western North America. Brittonia 23: 171-176.
!   Opuntia phaeacantha var. major Engelm. Opuntia phaeacantha Engelm. 33   IPCN75-78 Pinkava et al. 1977
!   Opuntia phaeacantha var. major Engelm. Opuntia phaeacantha Engelm. 33 ca.66 IPCN75-78 Weed.in & Powell 1978a
!   Opuntia phaeacantha var. major Engelm. Opuntia phaeacantha Engelm. 33   IPCN75-78 Parfitt 1978
!   Opuntia phaeacantha var. major Engelm. Opuntia phaeacantha Engelm. 33   IPCN73-74 PINKAVA, D.J., M.G. MCLEOD, L.A. MCGILL, & R.C. BROWN. 1973. Chromosome numbers in some cacti of western North America-II. Brittonia 25: 2-9.