Tortula inermis and Schistidium helveticum, two mosses from Scotland, new to the British Isles

摘要

Tortula inermis and Schistidium helveticum are reported and illustrated from the Water of Ailnack in the eastern Cairngorms of Scotland. Both species are newly recorded for the British Isles, and are noteworthy in Scotland because of their primarily southern distribution in Europe and the Mediterranean region. Both species occur on seasonally dry, friable soil on ledges and outcrops of conglomerate rock. The locality is in a region with a relatively cool, continental climate, but there is no evidence to suggest that these species are recent colonists at the site.