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I've wanted to find this one for a while. I doubt much can be gleaned from my amateur microscopy, but I believe I found a condiophore and some hyphal bodies. The fungus has spread throughout the entire body, even emerging from the face between the antennae. It also seems that the fungus has "sewn" the body to the leaf with strands of hyphae, as shown in picture 9.

Stalks average ~90 μm diameter, heads ~215 μm.
Distinguishing features from this key:

• Brown hymenium
  
• Pruina not always conspicuous, but white when present
  
• Thallus growing from under the surface of wood
  
• Excipulum underdeveloped, maybe visible occasionally in the last picture
  
• Spores 3.5-4.5 µm (ascospores in 11th picture I think, range is close given the difficulty measuring)

Looks like I caught a diverse array of conidia as well.

Since I couldn't identify the phycobiont, I could have also gone down the wrong genus.