Notes: Found near Sunset Highway Rest Area. Growing solitary on a small fallen alder branch.
Cap 6 cm across. Stem hollow, fragile. Spore print dark brown. Spores 7-7.5 × 4-4.5 microns. Cheilocystidia 55 × 15 microns.
Doesn’t seem to be any of the white-haired Psaths in MatchMaker and Fungi of Switzerland. (Haven’t tried any keys.)
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I tried the Smith book. Subsection Subacutae seems right. Within it, we are “On wood of hardwoods”, which points to key locations 16-21. However, every species description in this group has something that doesn’t match well.
… look much like the cheilocystidia and are about 50 microns long. Two photos added.
Byrain, I don’t have the Smith monograph and so cannot really follow your ID attempts. But thanks a lot!
I tried keying it out, this definitely needs more pleurocystidia details like shape to proceed. I think Subgenus Pannucia Section Appendiculatae in the Smith book looks promising.
Here is where I get stuck, in the Appendiculatae key.
3. Pleurocystidia utriform or fusoid-ventricose and with the apex broadly rounded.
3. Pleurocystidia nine-pin-shaped to obtuse to acute. subsect. Subacutae.
I saw pleurocystidia on the cross-section that I made to look at the
pileipellis, but I didn’t take a picture of them. Will see if I can do it
Absent, present? This is important for Psathyrella identification, please record it in the notes. :)
Created: 2012-07-10 03:14:17 CDT (-0400)
Last modified: 2013-03-16 22:35:43 CDT (-0400)
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