↑ Acevedo-Rodriguez, P. and M.T. Strong. 2005. Zamiaceae. In Acevedo-Rodriguez, P. and M.T. Strong (eds.) Monocotyledons and Gymnosperms of Puerto Rico and the Virgin Islands. Contributions from the United States National Herbarium volume 52.
References
↑ Endemic plants of Puerto Rico, World Checklist of Vascular Plants (WCVP) checklist builder. Royal Botanic Gardens, Kew. Retrieved 7 February 2025.
↑ Román Guzmán, Javier A. 2006. A study of Randia portoricensis (Urb.) Britton & Standley [Rubiaceae]: A rare species. MS Thesis, University of Puerto Rico, Mayagüez
Further reading
Pedro Acevedo Rodríguez and Franklin S. Axelrod (1999). "Annotated Checklist for the Tracheophytes of Río Abajo Forest Reserve, Puerto Rico". Caribbean Journal of Science. 35 (3–4): 262–285.
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