| The known geographic distribution of the members of the Verbenaceae, Avicenniaceae, Stilbaceae, Symphoremaceae, and Eriocaulaceae. Supplement 5 H N Moldenke (1951) Phytologia 3: 448-468 | |
| Materials toward a monograph of the genus Lippia. II H N Moldenke (1965) Phytologia 12: 73-120 | |
| Additional notes on the genus Lippia. I H N Moldenke (1966) Phytologia 13: 343-368 | |
| Additional notes on the genus Lippia. XVII H N Moldenke (1981) Phytologia 48: 255-270 | |
| Additional notes on the genus Citharexylum. XVIII H N Moldenke (1981) Phytologia 48: 270-273 |