On top of the bark of living Quercus macrocarpa.
Dictyospores measure
(25.7) 30.1 - 38.5 (41.3) × (9.2) 9.8 - 12.4 (13.3) µm
Q = (2.3) 2.8 - 3.5 (3.7) ; N = 25
Me = 33.4 × 10.7 µm ; Qe = 3.1

https://www.studiesinmycology.org/sim/Sim64/sim64.pdf