CCDBAngiospermsRubiaceaeHoustoniaHoustonia purpurea L.

7 chromosome counts in Houstonia purpurea L.:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
!   Houstonia purpurea Houstonia purpurea L. 9   IPCN65 J. L. Rogers 1965
  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 purpurea (L.) Torr. & A. Gray Houstonia purpurea L. 12   IPCN66 Lewis 1966a
!   Hedyotis umbellata Walter Houstonia purpurea L.   36 Kumar, 1987 Raghavan, T.S. & Rangaswamy, K. 1941
  Houstonia purpurea L. Houstonia purpurea L.   ~18 Fedorov, 1974 Terrell 1959
  Houstonia purpurea var. purpurea Houstonia purpurea L. c.9 c.18 Cave1959 Terrell 1959
!   Hedyotis nigricans var. rigidiuscula (A. Gray) Shinners Houstonia purpurea L. 10 20 Cave1962 Lewis 1962a