*1: Newlyn Cliff, 1869,
WC (PNZ) (Paton 1969a:
*2: St Minver, EMH
(Holmes 1906, Paton 1969a: 737).
Grows in patches, often as rather small isolated
patches, but sometimes forming a low lawn up to ca 10 cm across. Notes
on habitats in C&S are as follows. On thin or deeper soil
(stony 'protosols', loams, among gravel, etc.) or in crevices
of concrete or other masonry with little or no soil, usually
on substrates of basic to neutral reaction (sometimes slightly
acidic). In free-draining situations, often where rather dry,
normally unshaded or partly shaded e.g. by trees or bushes
(occasionally in deeper shade). Typically found on banks (at
woodland edges, in cemeteries and churchyards, on and above
sea-cliffs, on a streamside, at lanesides or roadsides, on old
mine areas including banks of mine-spoil), on field and
laneside 'hedges', on tops and ledges of stone walls (usually
mortared walls), on thin soil in crevices of stone walls
inland and near coast and on gravel near walls or on graves.
Less typical records are of single patches on soil of path on
a hillside, on steep slag/earthy minespoil of steep bank on
old mining ground near coast, on damp old mortared brickwork
of ruin in open deciduous woodland, in crevices of old wall
inside ruins of mine boiler house and in crevice of old
mortared-stone wall of ruin. Found once in crevices of
retaining wall of bridge over R. Tamar, within its flood-zone.
Associates recorded: Amblystegium serpens
var. serpens, Bryum capillare, Bryum radiculosum, Bryum rubens, Cephaloziella
Oxyrrhynchium hians, Oxyrrhynchium
Fissidens taxifolius var. taxifolius, Lophocolea
Trichostomum brachydontium, Conocephalum conicum,
low grasses and herbs; also, rarely, Bryum pallens, Weissia
Not seen c.fr.