Spores 17-20um, 6 per acus?. Psoroglaena abscondita. A parasite on algae at the base of an Ulmus americana in a swamp. k-, c-. I couldn't get a decent cross section so apothecia is somewhat dissected. See Kubiak 2003. Seems to be more septate than described 3-4 this one is up to 5.