In this paper, the checklist of 30 taxa of mycological flora of the dune zone of es Codolar (Ibiza) are given. This sandy area is a degraded and poorly known and has not cited a number of species of the island. Are listed with a brief description of the species found most important (9 taxa) typical dune environments, and provides a checklist of other species more common in the island (twenty-one) observed in the study area. Among the outstanding species from the chorological point of view include: Geopyxys majalis (Fr.) Sacc., Helvella juniperi Filippa & Baiano, Thelephora caryophyllea (Schaeff.) Fr., Agaricus gennadii (Chatin & Boud.) P.D. Orton., Hygrocybe pseudoolivaceonigra R. Picón, Hygrocybe conicoides (P.D. Orton) P.D. Orton & Watling, Battarrea phalloides form. phalloides Dickson: Pers., Schizostoma laceratum Her. Ex Lev. and Tulostoma lloydii Bres.