The lichen flora of Morocco has been the subject of two relatively recent checklists; that of Egea published in 1996 included 1,100 taxa, which was increased to 1,211 in 2013 by Ajaj and his collaborators. As a result of recent field-work, a detailed survey of herbarium catalogues, and the significant number of changes in nomenclature that have occurred since these two publications, an updated checklist consisting of 1287 taxa (1237 lichens and 50 lichenicolous and allied fungi) was necessary.