The montane forest of El Rey National Park (PNER) extends along humid slopes between 950 and 1600 meters above sea level, where the epiphytic stratum acquires notable importance, with the presence of mosses, lichens, and small Bromeliaceae species standing out among the vascular epiphytes. Given the importance of the role of epiphytes in these ecosystems and the effect of the conditions that each host intrinsically presents for harboring them, this study analyzed the relationship of lichen and bryophyte communities on two dominant phorophyte species, considering that different types of phorophytes determine specific microenvironmental (microclimatic and microsite) conditions. The study area was located along the Pozo Verde trail. Changes in the cover of lichens and bryophytes were evaluated on two representative tree species, Ocotea porphyria and Juglans australis. For this purpose, a 10 x 100 cm grid was used, placed 50 cm above ground level on each of the cardinal orientations of each phorophyte. The following microenvironmental variables were measured: temperature, humidity, light intensity, diameter at breast height (DBH), and pH. The microenvironmental variables differed between phorophytes: in O. porphyria, the microsite parameters (DBH and pH) as well as temperature were higher, while in J. australis, relative humidity was greater. The abundances of the epiphytic communities varied significantly with the change in phorophyte. Bryophyte cover exceeded lichen cover in both cases, and the limited development of the latter was restricted to crustose and microfoliose forms (microlichens). These differences may be associated with the different vegetative structure, highlighting the importance of the vegetation mosaic present in the montane forest of PNER in preserving shade-loving epiphytic communities. Keywords: Bryophytes; lichens; phorophytes.