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 it to the forms submit new counts, or report erroneous counts.


CCDBGymnospermsEphedraceaeEphedraEphedra americana Humb. & Bonpl. ex Willd.

5 chromosome counts in Ephedra americana Humb. & Bonpl. ex Willd.:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Ephedra americana Humb. & Bonpl. ex Willd. Ephedra americana Humb. & Bonpl. ex Willd.   28 IPCN online Chouhdry, A. S. 1984. Karyomorphological and cytological studies in Ephedra. J. Sci. Hiroshima Univ., Ser. B,. 19: 57–109.
  Ephedra americana Humb. & Bonpl. ex Willd. Ephedra americana Humb. & Bonpl. ex Willd.   14 IPCN online Nakata, M. & K. Oginuma. 1989. Cytological studies on phanerogams in southern Peru, II. Chromosomes of Tetraglochin strictum (Rosaceae) and Ephedra americana (Ephedraceae). Bull. Natl. Sci. Mus., Tokyo, B 15: 63–66.
  Ephedra americana Humb. & Bonpl. ex Willd. Ephedra americana Humb. & Bonpl. ex Willd.   28 IPCN online Leitch, I. J., L. Hanson, M. Winfield, J. Parker & M. D. Bennett. 2001. Nuclear DNA C-values complete familial representation in gymnosperms. Ann. Bot. (Oxford) 88: 843–849.
!   Ephedra americana Humb. & Bonpl. ex Willd. Ephedra americana Humb. & Bonpl. ex Willd.   14 Darlington, 1955 Resende 1937
!   Ephedra americana None Ephedra americana Humb. & Bonpl. ex Willd.   14 Cave1956supp Hunziker 1955