| Micrograph No. | Family | Scientific name and Author(s) | Aperturation | Ornamentation |
| 19, 20 | Agavaceae | Yucca louisianensis Trelease | monocolpate | psilate |
| 21, 22 | Sapindaceae | Serjania brachycarpa Gray | tricolporate | psilate |
| 23, 24 | Verbenaceae | Aloysia gratissima (Gillies & Hooker) Troncoso | tricolporate | psilate |