Saccobolus quadrisporus  

Anamorph: not known.
Teleomorph: ascomata apothecia, 350-700 µm diam., 150-250 µm tall, superficial, sessile, pulvinate, at first clear watery violet, gradually becoming darker with age, the margin not differentiated. Disk at first convex, then ± flat, clear watery violet, becoming blackish-violet or black, at maturity dotted with the dark apices of the protruding asci. Interascal tissue composed of rather sparse unbranched or sparingly branched hyaline thin-walled paraphyses 2-2.5 µm diam., the apex irregularly clavate, to 6.5 µm diam. Asci 85-110 x 20-26 µm, clavate, tapering downwards into a rather thick base, the apex truncate with a very broad operculum, the wall thin and staining blue in iodine, 4-spored. Spore clusters ellipsoid or elongate, 37-48 X 15-17 µm, surrounded by a common mucilaginous coat. Ascospores arranged in two parallel rows (rarely side by side in a single row), 17-20 x 9-10.5 µm, ellipsoidal, often somewhat trigonous, at first hyaline, then blackish-violet, one side with a thick girdle of irregularly reticulated or warted pigment to ca 1.5 µm thick surrounded by a narrow zone of greater translucency, in the other parts smooth to finely punctate and with only a thin layer of pigment.