A new species, Massarina magniarundinacea

Abstract

Massarina magniarundinacea, a new pleosporalean fungus, is described and illustrated. It is found on a submerged herbaceous stem from a river in Hokkaido, northern Japan. The shape of ascospores is very similar to that of M. arundinacea, but the dimensions are much larger, 67-82 x 6.5-9 μm (vs. 23-40 x 3.5-6 μm in M. arundinacea). In artificial media, M. magniarundinacea produces a teleomorphic state.