Macromitrium ousiense, a neglected Chinese moss species (Orthotrichaceae, Bryopsida) with new synonym and records

摘要

Macromitrium ousiense is a neglected Chinese moss species, differing from other taxa of the genus in its leaves with smooth laminal cells and gymnostomus capsules with hairy calyptrae. We found that M. heterodictyon Dixon is a new synonym of M. ousiense, and Japan is a new distribution record for the species.