Same as this collection sequenced later: https://www.inaturalist.org/observations/103429524#activity_comment_e3b32c8e-777b-4678-b7c1-dcc619725bba Could be a new species. See Dr. Josef Vlasak's comment there.
pinonbistro
2018-03-14
2018-03-14
United States of America, Arizona, Yavapai Co., Arizona, USA
White to straw colored, firmly attached flat growth with narrow margin, pores exposed and irregular to split or toothy, tubes up to 3 mm, mild odor and taste, on Az ash along intermittent stream at about 4500’ elevation