A re-evaluation of the morphology of Sorapilla (Bryophyta: Sorapillaceae) based on Sorapilla papuana

Abstract

Sorapilla Spruce & Mitt. is a taxonomically problematic genus of mosses. In this paper one of the two known species, Sorapilla papuana Broth. & Geh., is described and illustrated in detail for the first time, and its morphological peculiarities are discussed. It is monoicous, rather than dioicous as had been assumed. The presence of an annulus on the capsule and sparse hairs on the calyptra, both suggested previously, are confirmed. Paraphyllia, which had been reported for Sorapilla, are not present. The phylogenetic position of Sorapilla remains uncertain.