Posted by Taylan 10/14/13
Taylan: Trying to ID this in MatchMaker. (Couldn't even get started! I should gracefully resign from my OMS membership before getting kicked out!!)
Would you say it is gilled, pored, veined or toothed? Growing on the cut surface of a human-downed healthy large tree trunk. High elevation at Mt. Hood.
Sava: In Matchmaker, "gilled" (with a few exceptions) covers fleshy mushrooms with plate-like lamellae. "Toothed" there have unambigous teeth. "Veined" are chanterell-like, but not only that; it's a short list of "veined" mushrooms on Mathcmaker; it's best to go through the pictures of all of them to get the idea. What you have here (and I don't know what it is) is in "polypores". Many species in this group show a large variety in the form of hymenium-bearing surface. It's possible to see on the same fungus pores and gills, pores and teets, daedaloid arrangements. Don't despair if you don't nail down this one. Others on WTM may be able to recognize this from the picture; I can't.
Judy: Sava's descriptives here are a good start - you have to look in the polypore section of Matchmaker or Arora, as this is hard, woody and "conchy". First, what kind of wood (or tree - and is it living or dead) is it growing on? These guys are as host specific as any mycorrhyzal fungus, and some prefer living, some prefer dead hosts.
That "poroid" surface is almost but not quite daedaloid (maze-like) but is the closest category.
If the host is alder or other hardwood it could be a Datrona, though sometimes found on conifer substrates in the PNW. The description in Matchmaker for D. mollis looks close to yours, but without examining it, this is as close as I can get.
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