*1: Trethowel near
Porthkea, S. of Truro, 1852, JST
(BM) (Paton 1969a: 714-715).
*2: Pill near Saltash,
1867, FB (BM) (Paton 1969a:
714-715).
Habitat
notes from Cornwall are as follows. Mostly recorded
growing in small patches (low lawns or scattered plants) on
shale or head on low cliffs beside coastal creeks, where it
usually grows in slightly to well shaded places under small or
larger overhangs (and often also shaded by trees), commonly
where there is a trickle of water, and often on thin
accumulations of 'soil' (that may be vertical, inclined or
horizontal). It often grows down to within about 1.5 m above
HWST level. Cephaloziella turneri
is a regular and close associate in this type of habitat. Near
Perranarworthal found on thin soil on sloping ledges of slaty
rock of quarried bank above busy road, the site now being
rather heavily shaded by trees and bushes. Other associates
recorded: Ceratodon
purpureus, Hypnum
cupressiforme var. resupinatum, alga,
lichen.
Commonly c.fr.: capsules immature 4; dehiscing 4;
dehisced 4, 5, 7, 12.