Van Geel et al 2011: Ascospores sub-fusiform, 28–43×12–15 μm with one flattened side with long furrow. Gelorini et al 2011: Ascospores ellipsoid to subfusiform, inequilaterally one-celled, yellowish brown, 37–40×13–16 μm, smooth, thick-walled and with tapering ends; germ slit nearly straight and running over the entire spore-length near the flattened side.
van Geel B, Gelorini V, Lyaruu A, Aptroot A, Rucina S, Marchant R, Sinninghe Damsté JS, Verschuren D (2011) Diversity and ecology of tropical African fungal spores from a 25,000-year palaeoenvironmental record in southeastern Kenya. Rev. Palaeobot. Palynol. 164:174-190.