Käyttäjän sarahduhon tunnistukset

The pale ochre to whitish underside has me puzzled. The closest match seems to be Stereum subtomentosum but the spores are far too small, averaging 2.5x3.5 microns. Habitat probably an aspen stick but conifer twigs (mostly spruce also in the area
), though the stick looks like a hardwood and still has thin bark