Van Geel 1978: Ascospores muriform with many transverse and longitudinal septa, strongly flattened, brown. Size of spores rather variable: 60-95 x 30-50 μm.
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.