| Trích dẫn | Børgesen, F., 1924 Marine algae from Easter Island. In: C. Skottsberg (ed), The Natural History of Juan Fernàndez and Easter Island 2:247-309. Göteborg, Sweden. |
| Tài liệu tham khảo | 90161 Børgesen, F., 1924 |
| Trang | |
| Named Used as Valid | Ralfsia expansa |
| Địa phương | |
| Distribution | Easter Island. |