Pseudotrichia mutabilis  

Anamorph: not known.
Teleomorph: ascostromata initially, with necks erumpent from ectostromatic tissues of the host fungus, often becoming almost superficial as the host tissue degrades, usually gregarious in clusters of 4-10, perithecial, 170-250 µm diam. and 200-300 µm tall, ± globose with a shortly papillate neck, the ostiole rounded [reported as compressed slitlike in some collections]. Peridium rather broad, 20-30 µm in thickness, covered by sparse to copious yellowish to pale brown verruculose hyphae, often with granular pigmented exudates, the apical region ± glabrous; composed of reddish brown compressed cells, the pigmentation patchy. Ostiolar canal periphysate. Interascal tissue composed of trabeculate pseudoparaphyses in a gelatinous matrix, sometimes partially deliquescent at maturity. Asci (90-) 110-130 x (12-) 16-18 µm, cylindrical to cylindric-clavate, with a fairly long tapered stalk, thick-walled and fissitunicate with a conspicuous ocular chamber, 8-spored. Ascospores arranged biseriately, 31-36 (-39) x (6-) 7-8 µm, fusiform and tapering to ± acute ends, straight or inaequilateral, hyaline, usually 1-septate but with 1-2 secondary septa sometimes developing after maturity, the primary septum median and strongly constricted, the part of the upper cell next to the septum inflated, smooth-walled, surrounded by a broad gelatinous sheath.