Notes on some British Barbulas

Abstract

The moss Hypnum cupressiforme var. heseleri is reported new to the British Isles and its status is discussed. Line drawings and a photographic illustration are provided. It was found growing on an apple tree on the Royal Estate, at Flitcham in West Norfolk. It differs from other species of Hypnum in its distinctive rounded-concave leaf form and julaceous branches. The habitat and ecology are broadly similar to those in the other European sites from which this moss has been reported.