*1: Near St Ives, 1844,
AG (PNZ) (Paton 1969a: 726).
*2: Burniere, Bodieve
near Wadebridge, RVT (B) (Paton 1969a:
726).
Grows as dense low lawns or deeper tufts, sometimes
as large patches. Habitat notes from Cornwall are as follows.
A basiphile that grows on vertical or steeply inclined firm
'soil' (mostly earthy head deposits), soft rocks (slates,
serpentinite, sand-rock) or old masonry (mortar, concrete). It
usually grows in lightly to rather heavily shaded places, on
surfaces that are flushed or moist, at least in winter.
Records from natural sites are from dry and flushed rock low
on sea-cliffs, creekside cliffs and low banks beside streams
near the coast. More numerous artificial sites are in old
quarries, old road and railway cuttings and on old walls (e.g.
beside roads, streams and rivers, of mill, of old lime kilns
and of ruins of former china-clay works). Often in pure
patches; associates recorded were Conocephalum conicum
s. str., Cratoneuron filicinum,
Didymodon
tophaceus, Fissidens
adianthoides, Gyroweisia tenuis, Pellia endiviifolia,
Rhynchostegiella
tenella, Thamnobryum
alopecurum.
Not seen c.fr. in Cornwall by DTH (although noted
as 'rarely c.fr.' in Cornwall by Paton 1969: 726; elsewhere in
British Is., capsules 'rather rare, maturing in spring'
according to T.L. Blockeel in Hill et al. 1992:
297).
