*1: Carn Galver, 1861,
WC (PNZ) (Paton 1969a: 718).
*2: Withiel, 1871, RVT
(B) (Paton 1969a: 718).
Habitat notes from C&S are as follows. Forms
patches, mainly on acidic soils, which may be humic or
mineral, including thin soil overlying rocks, compacted soil
beside paths and uncompacted humic soils. Also on plant
litter, varying from Molinia caerulea
tussocks to wet peaty substrates and amongst low sphagna in
mires, and sometimes growing directly on rock. Few records
from old tree stumps in woodland, rotting wood of fallen tree
trunk in woodland (with Dicranum scottianum)
and roof of a church (Gwinear). Unusual record of small
patches growing as epiphyte ca 1.5 m above ground
on horizontal bough of Grey Willow in carr. Grows mainly on
coastal and dry and wet inland heaths, in acidic mires, on and
among granitic boulders and rock outcrops, in old granite
quarries and on their spoil, and often on 'hedges'. Occurs
mainly in open, unshaded or lightly shaded places and
sometimes increases on heathland a few years after fires.
Frequent also in areas of old copper-mine spoil, found once on
a heathy slope of old china clay spoil and once on floor of
old china-clay pit. Single record from gravel beside sewage
farm. Recorded several times part-shaded inside or in edges of
deciduous groves and conifer woodland and also several times
inside shady deciduous woodland. Associates include a range of
common acidophiles, e.g. Campylopus pyriformis,
Cephaloziella
divaricata, Dicranella
heteromalla, Dicranum scottianum,
Gymnocolea inflata,
Odontoschisma
sphagni, Sphagnum spp., and
such vascular plants as Calluna vulgaris, Juncus effusus and Molinia caerulea.
Among less common species, noted with Straminergon
stramineum, Sarmentypnum
exannulatum.
Occasionally/frequently c.fr.: capsules immature
1-4, 7, 9-12; dehiscing 7; dehisced 5, 8,
10.
