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 → Rubiaceae → Houstonia → Houstonia 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 |