Two new records of ascomycetes from Japan, Pyrenopeziza protrusa and P. nervicola (Helotiales, Dermateaceae sensu lato)

This study clarified that P. protrusa morphologically differs from P. nervicola in (1) more protruded outermost cells in ectal excipulum, (2) smaller ascospores, and (3) longer and thinner asci. Pyrenopeziza protrusa produces chlamydospore-like brown cells under culture while P. nervicola forms more complex, brown bulbils. These species formed distinct clades based on ITS-5.8S rDNA in the phylogenetic analysis. The two species did not share the same host.
Source: Mycoscience - Category: Biology Source Type: research