Many Cuban endemic trees are threatened to some extent. This project aims to assess the conservation status and distribution of ten species of Cuban trees: Abarema maestrense, Aralia rex, Juniperus saxicola, Magnolia cristalensis, Magnolia cubensis subsp. acunae, Magnolia cubensis subsp. cubensis, Magnolia minor, Magnolia orbiculata, Podocarpus angustifolius and Tabebuia sauvallei. The sites for our study are the Guamuhaya mountain range in Central Cuba, and the mountains of Sierra Maestra and Nipe-Sagua-Baracoa in Eastern Cuba.