by Dr M Lueth ©.
*1: Chyenhal, Newlyn, 1860, WC (MANCH) (Paton 1969a:
*2: Sawmills, Fowey, 1906, RWS (TRU) (Paton 1969a:
Habitat notes from C&S are as follows. Unshaded
to lightly shaded, acid soil on path edges, track edges, banks
and slopes, thin soil over and among granite rocks and on tops
and ledges of walls and 'hedges'; often on rocky hilltops, on
coastal heaths or in exposed places on or above sea-cliffs
(associates include Archidium
alternifolium, Ceratodon purpureus,
juniperinum, Polytrichum piliferum,
viticulosa, Conocephalum conicum).
On soil of banks about old granite quarries, often common,
forming pure patches, associates include Ceratodon purpureus,
bispinosa. In small quantity on mosses on vertical,
S.-facing granite rock in quarry, unshaded. Often on old
copper mine spoil and frequently where heavily copper
contaminated, forming small or larger pure patches in unshaded
spots on horizontal to sloping substrates, inland and on
coasts, including tops of exposed sea-cliffs; common
stellulifera, Ceratodon purpureus,
albicans, Gymnocolea inflata, Solenostoma
annotina; others recorded are Archidium
alternifolium, Lophozia excisa, Lophozia ventricosa,
viticulosa, Scapania nemorea.
Colonist on clay soil of banks, track edges, mica dam edges,
etc. in and around old and working china clay quarries,
commonly forming pure patches, unshaded. Thin soil in crevice
in old retaining wall, almost unshaded. With Nardia compressa on
damp granitic rock in Cornish hedge/bank. With other
bryophytes on top of large unshaded granitic boulders in
Foliar gemmae common. Commonly c.per.: 1, 8-12.
Commonly c.fr.: immature 1-3, 11, 12; dehiscing 1, 2; dehisced