CCDBAngiospermsRubiaceaeHoustoniaHedyotis nigricans var. rigidiuscula (A. Gray) Shinners

2 chromosome counts in Hedyotis nigricans var. rigidiuscula (A. Gray) Shinners:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Hedyotis nigricans var. rigidiuscula (A. Gray) Shinners Houstonia purpurea L. 11   IPCN online Ward, D. E. 1984. Chromosome counts from New Mexico and Mexico. Phytologia 56(1): 55–60.
!   Hedyotis nigricans var. rigidiuscula (A. Gray) Shinners Houstonia purpurea L. 10 20 Cave1962 Lewis 1962a