Cressa truxillensis Kunth
| Expeditions of the California Academy of Sciences to the Gulf of California in 1921. The botany (the vascular plants) Ivan Murray Johnston (1924) Proceedings of the California Academy of Sciences 12: 951-1218 | |
| The flora of the Revillagigedo Islands Ivan Murray Johnston (1931) Proceedings of the California Academy of Sciences 20: 9-104 |