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CCDB → Angiosperms → Rubiaceae → Houstonia → Hedyotis pygmaea Roem. & Schult.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Hedyotis pygmaea Roem. & Schult. | Houstonia wrightii A. Gray | 11 | IPCN online | Ward, D. E. 1983. In: IOPB chromosome number reports LXXX. Taxon 32: 510–511. |