A find of Pirottaea from dead stems of Silene dioica collected in the Bohemian Switzerland National Park is described. The material possesses very well developed setae, is assigned to Nannfeldt’s evolutionary lineage 2, and within the lineage differs from Pirottaea pilosissima known from stems of Geranium sylvaticum by shorter and up to 4-septate setae. Peziza sphaerioides var. lychnidis was revised and found to be conspecific with our material, but invalid. The earliest valid description of the taxon was found and a new combination is proposed. Results of a revision of several specimens of Pirottaea spp. published from the area of the Czech Republic are given.
Chlebická M., Konvalinková T. (2010): Pirottaea lychnidis comb. nov. from the Bohemian Switzerland National Park, Czech Republic. – Czech Mycology 62(1): 19–32.
