van Geel 1978: Conidia verrucose, consisting of (3-)4 columns of 2 or 4 cells, each column terminating in a septate appendage, verrucose pigmented.
Gelorini et al 2011: Conidia ellipsoid to rectangular, 3–4 columns with 4 cells to each column, yellowish brown, 35–40×20–25 μm, verruculose, thickwalled; terminating in septate appendages, 12–80 μm long (frequently broken), 5–8 μmwide.
van Geel B (1978) A palaeoecological study of Holocene peat bog sections in Germany and the Netherlands, based on the analysis of pollen, spores and macro- and microscopic remains of fungi, algae cormophytes and anymals. Rev. Palaeobot. Palynol. 25:1-120.