Hernández Gallego, Y., Díaz Espejo, A. and G. Rowe, J. 1998. Distribution of the bark macrolichens and its relationship with the vegetation in the Alcornocales Natural Park (Cádiz; southern Spain). Acta Botanica Malacitana. 23, (Dec. 1998), 43–50. DOI:https://doi.org/10.24310/abm.v23i0.8549.