Summary:
Features include 1) cushion-shaped to spread out cushion-shaped fruitbodies on aspen wood, 2) a white surface that is flat or with inconspicuous to conspicuous perithecial mounds, the openings dark, 3) orange granules situated immediately beneath surface and between perithecia, and KOH-extractable pigments colored orange, 4) spores that are elliptic-inequilateral, and brown, with a straight germ slit the length of the spore.

Microscopic:
SPORES (14)15-19(20) x 5.5-8 microns, elliptic-inequilateral, with narrowly rounded ends, "brown to dark brown, unicellular", "with straight germ slit spore-length", "perispore indehiscent in 10% KOH", epispore smooth; ASCUS 140-170 microns x 8-11 microns total, the spore-bearing part 100-117 microns long, the stem 27-60 microns long, with apical ring blueing in Melzer''s reagent, discoid, 1.5-2 microns high and 3-4 microns broad; PERITHECIUM 200-400(500) microns in diameter, 200-500 microns high, spherical to obovoid, (Ju), SPORES 15-19 x 7.5-9 microns, inequilaterally elliptic, dark brown to opaque, uniseriate; ASCUS 8-spored, 90-120 x 12 microns in spore-bearing part, cylindric, with stem 15-40 microns long; PARAPHYSES present; PERITHECIUM 200-300 microns in diameter, spherical or conic, (Miller, J.H.)

Notes:
Collections were examined from BC and NM, (Ju).

Synonyms and Alternate Names:
Saccoblastia sebacea Bourdot & Galzin