Hello,
I hope someone can help me get somewhere with this Pyrenomycete.  I see it often and I'd really like to know what it is.  It is a black Pyrenomycete that envelopes whole stumps and logs, probably of hardwood.  The stromata are rough, cone-shaped, up to a millimeter wide and tall, some with a large round ostiole.  It renders the wood extremely hard-- getting a small sample takes a lot of effort or a saw.  Please take a look at my photos of sections and microscopic features.  There were not a lot of micro features that I could recognize.  I only saw 3 spores, 2 and 3-septate, thick-walled, ranging from 12- 24 x 3.5-4.5 microns.  Thanks in advance for your help.
Ethan