Pluteus "pellitus"
Could be an undescribed species, as Pluteus pellitus is a European species and does not occur in North
America.
Cap characteristics separate this species from Pluteus cervinus and Pluteus petasatus, two species
that grow in similar habitat.  The cap
is mostly white, smooth, silky and slightly visid.  This single specimen was
growing in May from a decaying hardwood log.
Typical cystidia (microscopic cells on gill surface) of this
unidentified Pluteus mushroom
.
See Mushrooms
Demystified
, David Arora,
1986, p. 256