In order to facilitate a series of studies on the systematics of Flammulina
, the basionym for the type species, Agaricus velutipes, is epitypified, tw
o new species epithets and one varietal name are proposed (F. populicola, F
. rossica, and F. velutipes var. lupinicola), and two new combinations are
published (F. elastica [equivalent to Agaricus elasticus] and F. elastica f
. longispora [ F. velutipes f. longispora]).