Chiloscyphus polyanthos rivularis

Description

The 1.5-4.5 mm wide shoots of these pale green, translucent leafy liverworts usually interweave together in a mat. The lateral leaves are up to about 2 mm long and wide, more or less alternate, rounded, truncate or weakly indented, and the base runs down onto the stem. The small, narrow underleaves are bilobed, with lateral teeth. These two species are dioicous, and female plants give the only conclusive identification feature: the perianth lobes of C. polyanthos are undivided and hardly toothed, whereas those of C. pallescens are toothed.