*1: Carn Galver, 1882,
WC (NMW) (Paton 1969a:
695).
+1: On granite
boulders, Carn Galva, Morvah, 1965, JAP
(BBSUK) (Paton 1966:
182).
*2: Glynn valley,
Bodmin, 1910, RWS (TRU) (Paton 1969a:
695).
A robust liverwort that often grows as large pure
patches or partly intermixed with pleurocarpous mosses.
Habitat notes from Cornwall are as follows. De Lank, Draynes
and Hendergrove Woods (vc2): on ledges and sloping surfaces of
granitic rocks, thin soil over rocks and occasionally on
rotting wood, partly shaded and shaded inside deciduous
woodland above river banks; associates include Plagiochila
asplenioides, Plagiochila spinulosa
and Scapania
gracilis. Chapel Rock, Roche: on steep granitic rock near
base of tor, on N.-facing slope but unshaded. Rough Tor among
large granitic blocks and boulders.
Not seen c.fr.
