Thallus: individual colonies are cushion-shaped, tending to become lobed as they enlarge. When dry they are shrunken and cartilaginous but rapidly swell when wetted, becoming gelatinous. The interior is composed of globose, hyaline fungal cells in a mucoid matrix, the cells retaining cytoplasmic connections. The outer cells are pigmented (dull brown to olivaceous) and slightly echinulate. Anamorph: microconidia and two types of macroconidia are reported. Teleomorph: ascomata formed as locules within the colony, one to several of these pseudothecia present per individual colony. The pseudothecia are poorly delimited and may remain within the vegetative tissue at maturity or else may become emergent and knob-like. The asci are bitunicate, subclavate, with a much thickened apex, usually containing eight ascospores (some sources state 2 to 8 ascospores per ascus). Ascospores are hyaline, uniseptate, with the cells slightly unequal, (12.5)13.5-18.5 × (6-)6.5-9 µm. It has been reported that the ascospores may disjoin at the septum, and sometimes bud within the ascus to form numerous globose, thin-walled blastospores. Pseudoparaphyses are absent; when present the interascal tissue comprises beaded hyphae.