Mycena metata  is the most common pine-loving Mycena  in the Hawaiian
Islands, often found by the thousands.  In some planted forests of loblolly and slash
pine (Pinus taeda  and P. elliottii ), it is the primary saprotrophic agaric instrumental
in pine needle recycling.  It is easy to recognize by the campanulate-umbonate pale
greyish brown pileus, white to pale greyish orange or pink lamellae, a long grey stipe
and mild chlorine odor.  Microscopically, the large, broadly clavate hymenial cystidia
apically covered with evenly spaced rod-like spinulae are characteristic.