Had only a short time to observe this. I was at work and they frown upon ‘waisting time’ looking at mushrooms. (There was also a tent in the area, I guess someone set up camp. I didn’t want to disturb.)
Found in a drainage area that had a large volume of rotting substrate. On a downed hardwood log. Pretty sturdy but a little pliable. Slightly fuzzy caps. Also seems like elongated pores on the underside as far as I can tell. I removed some and placed them on the log for the underside shots.



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i agree
By: Chaelthomas (Chaelthomas)
2017-10-07 01:54:34 PDT (-0700)

with David. The bottom kind of looks phlebiod.

By: Christian (Christian Schwarz)
2017-10-05 14:13:02 PDT (-0700)

has much more blunt, wavy ridges (non-poroid), and smaller caps, and grows on birch.

Thanks David
By: Jared McRae (redeye311)
2017-10-05 12:21:11 PDT (-0700)

I’m going to have to revisit this spot and get some samples and some more detailed photos. I didn’t have time when I found them. Also I don’t have a scope. Need to work on that.

By: David Tate (DavidTate)
2017-10-05 10:20:46 PDT (-0700)

This looked Merulioid to me. The way the hymenium is structured is a good sign of that as far as I can see. Best I can tell from the pics, this looks similar to Plicatura nivea or P. crispa, but those are typically found in a more northern distribution, so I’m not sold on them as the correct id, but it might be a starting point for you. I just went through a bunch of meruliod info a few days ago for one of my observations, and it’s difficult to get to a species, and will likely require you to do some microscopy at least and check for clamp connections and get a look at hyphae structures and spore shapes and sizes, but if you want to try, you can check out this paper and maybe it’ll help you narrow it down.

GINNS, J. H. 1975. Merulius: s.s. and s.l., taxonomic disposition and identification of species. Can. J. Bot. 54: 100-167.