van Geel 1978: (Asco?)spores unequally one-septate, and slightly constricted, brown, 24--29 x 11--12 um, wall becoming thinner at both ends and forming a pore about 1 um wide (or wider due to corrosion).
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.