by Dr M Lueth ©.
*1: Mousehole Cave, 1883, WM & WC (OXF) (Paton 1969a:
*2: Goss Moor, 1906, RWS (TRU) (Paton 1969a:
Habitat notes from Cornwall are as follows. On
clayey, sandy, humic or peaty soil of banks, track-edges and
old pathways on heaths and in mires. Unshaded clay soil in
trampled area near pool and a reservoir edge, with Aneura pinguis, Solenostoma
gracillimum, Scapania irrigua. Damp
clay soil part shaded on bank near canal. Gear: damp sandy
ground of disturbed area by dune slack. Edge of water of small
stream in edge of Grey Willow carr in heathland.
Edge of water of small stream in flush above S.-facing
sea-cliff. Flush on N.-facing sea-cliff (with Riccardia multifida).
Patches growing over top of extensive turf of Hymenostylium
recurvirostrum at N.-facing base of mortared wall of old
mine-building, where apparently copper contaminated. Damp soil
among old concrete of ruined wall, part shaded. On decaying
mortar and damp concrete of old walls of ruins of china clay
dries (almost unshaded to moderately shaded); same, but on wet
shaded wall (near Pellia endiviifolia)
and on rather dry wall overgrown by low scrub. Thin soil on
top of ruined wall of mine boiler house (almost unshaded). On
side of block of concrete almost buried in soil on damp
unshaded slope below reservoir dam. Partly bare soil of steep
slope in small old slate quarry. Thin soil on almost unshaded
slope in old quarry near coast (with Cephalozia
scalaris). On unshaded soil in disused granite quarry,
dichotomum and Dicranella varia. Wet,
sometimes vertical soil of flushed banks and slopes above
N.-facing sea-cliffs (with Aneura pinguis, Fossombronia angulosa,
endiviifolia). Twice on wet peaty humus in flushes on
slopes above N.-facing sea-cliffs (with Calypogeia fissa). At
least two records amongst sphagna in mires or wet heaths (with
Aneura pinguis, Calypogeia fissa). In
wet areas on quarry floors and flushed areas on slopes of
china-clay quarries (with Aneura pinguis, Pellia neesiana, Philonotis fontana).
On slaty rocks and stones at water-level in streams and edge
of a river, mainly well shaded e.g. in deciduous woodland. On
humic damp sand at edge of mica dam, partly under Juncus effusus (with
Blasia pusilla, Riccardia
chamedryfolia). Damp soil under edge of scrub on slope of
old metalliferous mine (with Aneura pinguis). Among
mosses on open flushed calcareous sand of floor of disused
sandpit in dunes.
At least occasionally with gemmae on apices of
thalli. Frequently (?) c.fr.: immature 1, 3-5.