BioStor
 | Scientific results of explorations by the U. S. Fish Commission steamer Albatross. No. XVI..Plants collected in 1889 at Socorro and Clarion Islands, Pacific Ocean Geo Vasey and J N Rose (1890) Proceedings of The United States National Museum 13: 145-149 |
 | 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 |