Range & Status
(syn. Jungermannia caespiticia Lindenb.). Widespread in N. and C. Europe; also New York State and Alaska. In Britain, recent records are mainly from the Pennines of N. England, with isolated localities in mid-Wales and E. Cornwall. Formerly also E. Gloucestershire, Surrey and Isle of Wight.
One locality, near Luckett (SX37W), where it was recorded from 1963-1970.
Habitat & Ecology
The Cornish site is on damp, mineral-rich soil in old mine workings. Elsewhere it is a pioneer species of moist base-poor soils in a variety of habitats, including moorland edges, stream banks and reservoir margins. It is a dioicous species in which perianths are rare and capsules very rare; only sterile and male plants have been found in Cornwall. Gemmae occur frequently.
There is no recent information from the Cornish site, where it was last recorded in 1970.