| Micrograph No. | Family | Scientific name and Author(s) | Aperturation | Ornamentation |
| 571 | Asteraceae | Eupatorium odoratum L. | tricolporate | echinate |
| 572 | Asteraceae | Cirsium texanum Buckley | tricolporate | echinate |
| 573 | Asteraceae | Ageratina altissima (L.) King & H. Robinson var. altissima | tricolporate | echinate |
| 574 | Asteraceae | Solidago tortifolia Elliott | tricolporate | echinate |
| 575, 576 | Asteraceae | Amblyolepis setigera DC. | tricolporate | echinate |