One new species and three new records in the genus Porpidia from China

Four species of Porpidia are newly reported from China, including one species new to science (Porpidia crystallina) and three records (Porpidia umbonifera, P. seakensis and P. cf. contraponenda) new to China. Porpidia crystallina is characterized by a macrocarpa-type exciple containing crystals, a Cinereorufa-green epihymenium, large ascospores and a lack of secondary metabolites. Morpho-anatomical, chemical and phylogenetic analyses were carried out to elucidate the placement of the species and to support the delimitation of the new taxon. Detailed taxonomic descriptions, ecological and chemical characters, and illustrations are provided for each species. A key to all known Chinese Porpidia species is also provided.

Automated summary

This study reports four new species of Porpidia from China, including one new species to science (Porpidia crystallina) and three new records to China (Porpidia umbonifera, P. seakensis and P. cf. contraponenda). Morpho-anatomical, chemical, and phylogenetic analyses were conducted to clarify the placement of these species and to support the delimitation of the new taxon. Detailed taxonomic descriptions, ecological and chemical characteristics, and illustrations are provided for each species. Additionally, a key to all known Chinese Porpidia species is included.