This result of a mycological inventory of Agaricales in Caldera de Taburiente National Park in the Canary Islands (Spain) reports a total of 59 species: 51 of these are quoted for the first time for this protected area, 13 are new to La Palma island, and 8 are new to the Canary Islands: Clitocybe pruinosa, Cystoderma jasonis, Naucoria pseudoamarescens, Melanoleuca nigrescens, Mycena sylvae-nigrae, Phaeomarasmius erinaceus, Resupinatus kavinii and Tricholoma batschi. Some of the latter species, together with Lentinellus flabelliformis, L. micheneri, Marasmius wynnei, Resupinatus applicatus, T. scalpturatum var. meleagroides and T. striatum are described and illustrated in more detail.