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The cap of Suillus grevillei is bright yellow, darkening to burnt orange on older specimens. Starting convex but flattening in older mushrooms. The cap is viscid and looks shiny even when the weather is dry and is covered in slime. Pores are sponge like, angular, bright yellow that darken with maturity and will bruise a rust colour. The stem is yellow with brown scales underneath the veil like skirt and smooth above. Before the mushroom fully opens the pores are covered by a fine web like veil which joins the edge of the cap to the stem, when this comes away it forms the skirt.
Beneath larch trees, with which Suillus grevillei is ectomycorrhizal.
Spotted near a larch tree (Larix sp.) Gerritsflesch, Veluwe, Holland. (sources:see reference)
Spotted on Jul 19, 2020
Submitted on Oct 1, 2020