| Micrograph No. | Family | Scientific name and Author(s) | Aperturation | Ornamentation |
| 421 | Rosaceae | Amelanchier arborea (Michaux f.) Fernald | tricolporate | striate |
| 422 | Rosaceae | Prunus mexicana S. Watson | tricolporate | striate |
| 423, 424 | Rosaceae | Prunus persica (L.) Batsch | tricolporate | striate |
| 425, 426 | Rosaceae | Malus angustifolia (Aiton) Michaux | tricolporate | striate |