H. Harmaja, 1970, writes, "very probably: Clitocybe phyllophila v. phyllophila"
type
W. A. Murrill
615a
1911-10-20 - 1911-01-30
20 Oct 1911-01 Nov 1911
United States of America, Washington, Seattle,
Mostly in moist virgin forests of Pseudotsuga, Thuya, Abies, Tsuga, Acer, Alnus, etc. A few in peat bogs, some on rather dry coniferous slopes, and others in open fields and lawns