Hygrocybe mucronella

Hygrocybe mucronella is a species of agaric (gilled mushroom) in the family Hygrophoraceae. It has been given the recommended English name of bitter waxcap. The species has a European distribution and typically occurs in grassland where it produces basidiocarps (fruit bodies) in the autumn. Threats to its habitat have resulted in the species being assessed as globally "vulnerable" on the IUCN Red List of Threatened Species.