| Porto Rican fungi, old and new F L Stevens (1917) Trans. Illinois State Acad. Sci 10: 162-218 | |
| Studies in the flora of Lower California and adjacent islands Alice Eastwood (1929) Proceedings of the California Academy of Sciences 18: 393-484 | |
| Check list of Northern Territory plants G M Chippendale (1972) Proceedings of The Linnean Society of New South Wales 96: 207-267 |