| Micrograph No. | Family | Scientific name and Author(s) | Aperturation | Ornamentation |
| 331 | Oleaceae | Fraxinus americana L. | stephanocolpate | reticulate |
| 332 | Scrophulariaceae | Leucophyllum frutescens (Berlandier) I. Johnston | tricolporate | reticulate |
| 333, 334 | Fabaceae | Gleditsia aquatica Marshall | tricolporate | reticulate |
| 335 | Rubiaceae | Mitchella repens L. | tricolporate | reticulate |
| 336 | Oleaceae | Fraxinus pennsylvanica Marshall | stephanocolpate | reticulate |