TheMountainMan Posted August 22, 2020 Report Share Posted August 22, 2020 Help, is this a Berkeley's Polypore? No black staining / bruising. Northeast Pennsylvania Mostly shaded area, at edge of wooded area. Near some live and dead oaks and pine. Also a maple tree nearby. Closest to a dead pine stump that was ground down this summer. Lots of little gnats flying around it. Quote Link to comment Share on other sites More sharing options...
brendan Posted August 22, 2020 Report Share Posted August 22, 2020 I think some of the black visible on the edges of the fronds could be signs of staining, try ripping a chunk off, give it a few minutes and see if it darkens. Quote Link to comment Share on other sites More sharing options...
TheMountainMan Posted August 22, 2020 Author Report Share Posted August 22, 2020 Did darken somewhat. At first I thought this may be a black staining polypore, but it grew about 2 weeks earlier than other black staining polypores in this area and had a little bit different appearance to me, so wasn't sure. The others are just popping now. The black edges are hard / dry and get some sun. New pics attached. Quote Link to comment Share on other sites More sharing options...
brendan Posted August 22, 2020 Report Share Posted August 22, 2020 You know, it's interesting. The more I look at the pore surface in that one photo I keep thinking about G. frondosa but the fronds seem way too large and spread out to possibly be that. I'm not sure I can say, someone else will surely be along to help though. Quote Link to comment Share on other sites More sharing options...
Dave W Posted August 23, 2020 Report Share Posted August 23, 2020 This is Meripilus sumstinei, Black-staining Polypore. When the fronds are large and approximating semi-circles, this species looks quit a bit like Berkeley's. Mature Berkeley's fronds are smoother (upper surfaces) with more even margins and it does not bruise black (or dark gray/brown). Grifola has smaller fronds that do not stain. Quote Link to comment Share on other sites More sharing options...
TheMountainMan Posted August 23, 2020 Author Report Share Posted August 23, 2020 Thank you kindly for your help. Quote Link to comment Share on other sites More sharing options...
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