Bos et al 2005: The ascospores are dark-brown, ellipsoidal, (51–)58–69(–79) X 33–41 µm, with 5–6 subapical pores in a pseudocircle. The other end shows the remains of an originally cellular, or gelatinous (not fossilised), eccentrically placed appendage. The base of this appendage is about 12 µm in diameter, with a small central pore.
Bos JAA, van Geel B, Groenewoudt BJ, Lauwerier RCGM (2005) Early Holocene environmental change, the presence and disappearance of early Mesolithic habitation near Zutphen (The Netherlands). Veg. Hist. Archaeobot. 15:27-43.