Two new species of Dacampia (Ascomycota, Dacampiaceae), with a key to and synopsis of the known species of the genus

Abstract

Two new lichenicolous fungi in the genus Dacampia are described: D. muralicola sp. nov. from the apothecia of Protoparmeliopsis muralis (syn. Lecanora muralis) in Turkey, and D. rhizocarpicola sp. nov. from thalli of Rhizocarpon obscuratum in the UK. The new species differ from those previously recognized in the genus in the size and septation of the ascospores, as well as in occurring on unrelated hosts. A new combination D. leptogiicola comb, nov. (syn. Pleospora leptogiicola) is also made. A key to the seven accepted species of Dacampia is presented, along with line drawings of their ascospores.