The general characterization of the phytocoenosis of Monte Cristo is given and it is stated that this is the only place where Pinus cubensis grows on limestone derivated soils. A study, by Braun Blanquet methodology, is presented of the association Alvaradoo arborescentis-Pinetum cubensis and its two subassociation: typicum and colubrinetosum that grow on limestone are described referring to their characteristics and ecological conditions. The following associations, that grow on ophiolites, are also studied: Gundlachio cubanae-Pinetum cubensis and Lepidaploo orbicularis-Pinetum cubensis; a characterization is given similar to the previous. Finally the floristic relation is analyzed with all the phytocoenoses described.Se realiza una caracterización general de las fitocenosis presentes en Monte Cristo y se pone de manifiesto, que es aquí donde único crece el Pinus cubensis sobre suelos derivados de calizas. Utilizando la metodología de Braun Blanquet se describe la asociación Alvaradoo arborescentis-Pinetum cubensis y sus dos subasociaciones: typicum y colubrinetosum ferrugineae que viven sobre suelos procedentes de la caliza. A su vez se estudian las asociaciones: Gundlachio cubanae-Pinetum cubensis y Lepidaploo orbicularis-Pinetum cubensis que se desarrollan sobre las ofiolitas, la primera sobre suelos ferríticos y la segunda en suelos esqueléticos.
The general characterization of the phytocoenosis of Monte Cristo is given and it is stated that this is the only place where Pinus cubensis grows on limestone derivated soils. A study, by Braun Blanquet methodology, is presented of the association Alvaradoo arborescentis-Pinetum cubensis and its two subassociation: typicum and colubrinetosum that grow on limestone are described referring to their characteristics and ecological conditions. The following associations, that grow on ophiolites, are also studied: Gundlachio cubanae-Pinetum cubensis and Lepidaploo orbicularis-Pinetum cubensis; a characterization is given similar to the previous. Finally the floristic relation is analyzed with all the phytocoenoses described
