Octosporaconidiophora (Pyronemataceae) – a new species from South Africa and the first report of anamorph in bryophilous Pezizales

摘要

Octosporaconidiophora is described as a new species, based on collections from South Africa. It is characterised by apothecia with a distinct margin, smooth or finely warted ellipsoid ascospores, stiff, thick-walled hyaline hairs, warted mycelial hyphae and growth on pleurocarpous mosses Trichosteleumperchlorosum and Sematophyllumbrachycarpum (Hypnales) on decaying wood in afromontane forests. It is the first species of bryophilous Pezizales in which an anamorph has been observed; it produces long, claviform, curved, hyaline and transversely septate conidia. Three other cryptic species of Octospora were detected using three molecular markers (LSU and SSU nrDNA and EF1α), but these could not be distinguished phenotypically. These are not described formally here and an informal species aggregate O.conidiophora agg. is established for them. The new species and finds of Lamprosporacampylopodis growing on Campylopuspyriformis and Neottiellaalbocincta on Atrichumandrogynum represent the first records of bryophilous Pezizales in South Africa.