BioStor
 | The genera of Acanthaceae in the southeastern United States R W Long (1970) Journal of the Arnold Arboretum 51: 257-309 |
 | The Acanthaceae of California and the peninsula of Baja California Thomas F Daniel (1997) Proceedings of the California Academy of Sciences 49(10): 309-403 |
 | Pollen morphology of Mexican Acanthaceae: diversity and systematic significance Thomas F Daniel (1998) Proceedings of the California Academy of Sciences 50: 217-256 |