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CCDB → Angiosperms → Rubiaceae → Houstonia → Houstonia serpyllifolia Michx.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Hedyotis michauxii Fosberg | Houstonia serpyllifolia Michx. | 16 | IPCN66 | Lewis 1966a | ||
| ! | Houstonia serpyllifolia Michx. | Houstonia serpyllifolia Michx. | 16 | Fedorov, 1974 | Ornduff (D. n. 1965) | ||
| ! | Hedyotis michauxii Fosberg | Houstonia serpyllifolia Michx. | 24 | Cave1962 | Lewis 1962a | ||
| Hedyotis michauxii Fosberg | Houstonia serpyllifolia Michx. | 16, 24 | Cave1962 | Lewis & Terrell 1962 |