*1: Buryas Bridge,
Penzance, 1842, WC (NMW) (Paton 1969a:
698).
*2: Goss Moor, 1906,
RWS (TRU) (Paton 1969a:
698).
Habitat notes for records in C&S are as
follows. Abundant, forming large patches on acid soil of banks
and thin soil over granitic rocks in old quarries; associates
include Ceratodon
purpureus, Diplophyllum albicans,
Ditrichum
heteromallum, Pogonatum urnigerum,
Pohlia annotina, Polytrichum
juniperinum, Scapania compacta.
Frequent and sometimes plentiful on acidic 'soil' or
'lithosols' on areas of old copper mine-spoil, unshaded or
sometimes partly shaded; near Ceratodon purpureus,
Solenostoma
gracillimum, Scapania compacta.
Abundant (one of commonest bryophytes), often in pure patches,
as colonist on flat and sloping ground on clayey and gritty
lithosols and on soft crumbling rock in and around old and
working china clay quarries, on mica dam edges and on spoil
heaps, where unshaded or lightly shaded (often with Cephalozia
bicuspidata, Ceratodon purpureus,
Polytrichum
juniperinum, Pogonatum aloides, Pogonatum urnigerum,
Scapania compacta,
Scapania irrigua,
less often Solenostoma
gracillimum, Lophocolea bispinosa,
Marsupella
profunda, Marsupella sprucei).
Plentiful on banks and slopes on and above sea-cliffs, on
acidic soil, sometimes in wet places e.g. flushes and thin
soil over granite and slate rocks (associates include Cephalozia
bicuspidata). Several records on Isles of Scilly on low
damp N.-facing sea-cliffs of acid sandrock. Peaty or humic
substrates of flat ground on heaths or banks on heaths or in
mires, often unshaded, sometimes growing from algal mats (with
Odontoschisma
sphagni). Damp tracks in heathy areas and in conifer
plantation (with Solenostoma
gracillimum, Pohlia
annotina). Damp soil of stream banks, almost unshaded,
with Anthoceros
punctatus, Dicranella
heteromalla, Dicranella rufescens,
Lunularia cruciata,
Pellia epiphylla,
Phaeoceros laevis.
In small amount amongst sphagna in open mire. In small amount
on steep acid soil of bank beside pasture, partly shaded by
deciduous trees (with Diplophyllum
albicans).
Commonly cper: 1-3, 9, 10. Frequently (commonly ?)
c.fr.: immature 2-4, dehiscing 3, dehisced 3, 4. See
Blackstock (2006b) for study of reproductive biology in N.
Wales.
