On the last year Phragmites australis stems. Abundant.
Apothecia are up to 3mm in diameter, sessile, pale yellow.
Apothecia react strong yellow in KOH. Medullary excipulum with crystals.
Asci 8-spored, IKI+bb, croziers(-).
Ascospores are hyaline, long-fusiform, with some small guttules, OCI=3, measured
(17.3) 18.3 - 21.4 (21.5) × (2.6) 2.9 - 3.3 (3.5) µm
Q = (5.2) 5.5 - 7.2 (7.9) ; N = 22
Me = 19.8 × 3.1 µm ; Qe = 6.5
Paraphyses are cylindrical with long or sometimes with multiguttulate VBs.