van Geel 1978: Conidia septate, 95-110 x 17-20 μm, straight or only slightly curved. Base truncate, central part swollen, gradually tapering into the rounded apex. Walls relatively thick (1.5 μm) and smooth; inside with a characteristic rough structure.
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.