Se estudiï¾ï½³ la morfologï¾ï½­a foliar de los antï¾ï½³fitos que son representativos de cuatro tipos de pluvisilvas de la Regiï¾ï½³n Oriental de Cuba y se relacionï¾ï½³ con los principales factores abiï¾ï½³ticos. Se encontrï¾ï½³ que existen varios tipos de hojas, pero predominï¾ï½³ la micrï¾ï½³fila en las especies endemicas y la mesï¾ï½³fila, en las no endemicas. En la epidermis foliar se hallaron estructuras que son caracterï¾ï½­sticas de plantas mesomï¾ï½³rficas y algunas xeromï¾ï½³rficas, pero tambien se observaron otras que permiten una adaptaciï¾ï½³n a las condiciones de alta humedad atmosferica, las que se consideraron higromï¾ï½³rficas. Palabras clave: morfologï¾ï½­a foliar, epidermis, pluvisilvas, ecologï¾ï½­a, Regiï¾ï½³n Oriental de Cuba. Relationship between antophyte foliar morphology and abiotic factors in the main rainforests of Eastern Cuba. The foliar morphology of representative antophytes in four rainforest types of Eastern Cuba was studied in relation to the main abiotic factors. Although there are several leaf types in these forests, the microphyll type is the most important among endemic species in the ophiolites complex and the Montane rainforest. At the Lowland rainforest (metamorphic complex) the mesophyll leaf was the most important. Most foliar epidermis had structures normally found in mesomorphic plants, but xeromorphic and higromorphic morphologies were also present. Rev. Biol. Trop. 57 (1-2): 235-256. Epub 2009 June 30. Key words: foliar morphology, epidermis, rainforests, ecology, Cuban Oriental Region.