| Micrograph No. | Family | Scientific name and Author(s) | Aperturation | Ornamentation |
| 74, 75 | Rhamnaceae | Ceanothus americanus L. | tricolporate | psilate |
| 76, 77 | Rhamnaceae | Frangula caroliniana (Walter) Gray | tricolporate | psilate |
| 78, 79 | Clethraceae | Clethra alnifolia L. | tricolporate | verrucate |