New taxa in the genus Lyophyllum s.l. from La Palma (Canary Islands, Spain)

Four new taxa in the genus Lyophyllum (L. brunneum, L. infidum, L. pseudoloricatum, and L. pseudoloricatum f. lactellum), collected in La Palma (Canary Islands), are here described and taxonomically delimited based on morphological data. For each species detailed descriptions, microscopical drawings and plates are presented. Notes on closely related species are also added.