| Micrograph No. | Family | Scientific name and Author(s) | Aperturation | Ornamentation |
| 313, 314 | Fabaceae | Sophora affinis Torrey & Gray | tricolporate | reticulate |
| 315, 316 | Cucurbitaceae | Melothria pendula L. | tricolporate | reticulate |
| 317 | Saxifragaceae | Saxifraga texana Buckley | tricolporate | reticulate |
| 318 | Fabaceae | Sesbania punicea (Cavanilles) Bentham | tricolporate | reticulate |