Paxillus obscurosporus C.Hahn (1999) Paxillus obscurisporus is a basidiomycete fungus found in Europe.

[1] It was originally given the name P. obscurosporus which was later corrected to 'obscurisporus' .

It is visually similar to the brown roll-rim (P. involutus) but can grow much larger, up to 29cm across.

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