As a result of the SEL (Sociedad Española de Liquenología) Field Meeting, 493 taxa of lichens and lichenicolous fungi were reported from Sierra de San Lorenzo (La Rioja Community, Spain). The list includes 292 taxa that are new to La Rioja Community and 6 new records to the Iberian Peninsula: Arthonia ilicinella, Ramalina subfraxinea, Sphaerellothecium propinquellum, Sphaerodes fimicola, Tremella ramalinae and Xanthoparmelia isidiigera.