*1: Gulval Carn, 1860,
WC (OXF) (Paton 1969a:
706).
*2: Shaded sandstone
rocks beside path in woodland N. of Sowden's Bridge, near
Looe, Aug. 1961, JAP (BBSUK) (Paton 1962:
364, 1969a: 706).
Habitat notes from Cornwall are as follows. On dry,
steep serpentinite and gabbro rocks of S.-facing outcrops,
almost unshaded or part shaded, mainly on overhanging faces.
On shaded serpentinite rocks in deciduous woodland and above
wooded stream bank. Large patches low on trunk of substantial
Sycamore tree in woodland above bank of
stream.
Associates include Hypnum cupressiforme
var.
resupinatum, Metzgeria furcata, Neckera complanata;
but most often forming pure patches appressed to rock on drier
more shaded surfaces than those occupied by any of its
associates
Cper: 11. Recorded once c.fr.: dehisced
10.
