Under Quercus spp., Rhododendron ponticum baeticum.
Perhaps ciliatus. On rotten hardwood. Sharing the substratum with Polyporus tuberaster. Cap is 2.3 cm; foot is 4mm. 2 pores per mm; they descend onto the foot but as not as deep as on the cap. Fibrose margin of cap. Cap has some scales. Two units at some distance of each other. Photos 3 & 4 were taken three days later. The biggest odd spores were 19.6-16 x 4.9 um. Polyporus tuberaster was growing on the same tree: https://www.inaturalist.org/observations/215220419
Saprófito de Quercus pyrenaica
En tronco de Sauco. Sambucus sp.