I don't know fungi - I'm not even one myself - but eyeballing it I think it most closely resembles a death cap. For the record I'm not one of those either.
Fungal fruiting bodies beneath Quercus canariensis (Algerian Oak).
No staining of any kind observed at any break points
Dry L.nuda.
Note pale spore visible upper left in photo 1, and purple base colour photo 2.