Observation 268346: Hymenochaetaceae Donk

Notes:
A bright rusty/orange-brown resupinate growth on the inside of a large, hollow, very decayed log in mixed woods. The fertile surface appears somewhat velvety to the naked eye, but is covered with soft, bristle-like spines (setae?) visible with a 10X magnification loupe. It’s impossible to even touch the surface lightly without getting your fingers stained orange (See image # 4440). Might this be spore “dust”?

Images

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Copyright © 2017 Judi Thomas.
IMG_4443A.JPG
Copyright © 2017 Judi Thomas
IMG_4433.JPG
Copyright © 2017 Judi Thomas
IMG_4440.JPG
Copyright © 2017 Judi Thomas
Note stained finger.
IMG_4435.JPG
Copyright © 2017 Judi Thomas
IMG_4379.JPG
Copyright © 2017 Judi Thomas
IMG_4374.JPG
Copyright © 2017 Judi Thomas
In situ
IMG_4376.JPG
In situ

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Comments

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Thanks for looking at this ob, Danny. I can see
By: Judi T. (AvidAmateur)
2017-02-13 18:10:25 CST (-0500)

the similarity to the reference you provided (a specimen collected in 1937!). I didn’t see any mention of the substrate in this reference. The wood from which my specimens were taken was so rotted that I couldn’t take a guess on the tree species. A more experienced friend looked at this for me and immediately thought it looked like conifer wood rather than a hardwood. Seems like microscopy would be needed here.
Once again, I am duly impressed with your extraordinary memory … your ability to remember even the most obscure observations and call them to mind when you see something that looks similar. It’s a gift.