Sabal causiarum

References

1. [1]Palm and Cycad Societies of Australia. — http://www.pacsoa.org.au/ ↩︎Contains at least a little information on the majority of palm and cycad species, plus a wealth of photographs. A first class website.
2. [2]IUCN Red List of Threatened Species — http://www.iucnredlist.org/ ↩︎A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
3. [3]Field Guide to the Palms of the Americas — Henderson A.; Galeano G.; Bernal R. · Princeton University Press; Princeton, New Jersey. · 1995 · ISBN 0-691-08537-4 ↩︎An excellent book, giving basic information on all the 550 species of palms native to the Americas that were known in 1995. Comprehensive information on the plants range and habitat, brief description, some uses and almost 250 photos.
4. [4]Common Trees of Puerto Rico and the Virgin Islands — Little E.L.; Wadsworth F.H. · USDA, Forest Service; Washington. · 1964 ↩︎Contains detailed information, and usually an illustration, on 250 tree species, including both native and exotic species.