Epiphytic lichen biota occuring on Areca palm (Areca catechy L.) trees have been investigated from the cultivated areas, with dense human habitation, in the Pathanamthitta district of Kerala. A total of 19 lichen species belonging to nine genera and six families were enumerated from the Areca trees of the area. The foliose forms represented by 17 species were dominant, followed by two species of crustose lichens. Fruticose forms were not found in this area. The family Calidiaceae was dominant with eight species followed by Physciaceae with five species. The families Collemataceae and Parmeliaceae were represented by two species each, and Arthoniaceae and Pyrenulaceae were represented by single species each.