*1: Tremethick Moor,Penzance, 1862, WC
(PNZ) (Paton 1969a:
739).
*2: Near St Erme, 1861,
ES (TRU) (Paton 1969a:
739).
Grows as lawns or often mixed with other bryophytes
and vascular plants. Forming pure hummocks up to 25 cm high
locally on wet heathland at Retire Common. Habitat notes from
Cornwall are as follows. In open, wet, acid, oligotrophic to
mesotrophic mires or wet heathland, or flushes e.g. in
pastures or above sea-cliffs, commonly with sphagna (including
Sphagnum
denticulatum,
S. inundatum, S. capillifolium, S. fallax, S. fimbriatum, S. palustre, S. papillosum, S. subnitens), other
common associates include Calypogeia fissa, Odontoschisma
sphagni, Pleurozium
schreberi, less often Dicranum bonjeanii;
usually at base of such vascular plants as Calluna vulgaris, Erica tetralix, Juncus effusus, Molinia caerulea, Potentilla erecta, Ulex gallii, or mixed
with low growth of these, less often Schoenus
nigricans.
Unusual records (as colonist): six records, often
of substantial patches, on partly bare clay of slopes and flat
areas of tips of china clay spoil, others of patches on wet
track edges or developing wet heathland on china clay spoil
(with Bryum
alpinum, sparse Calluna vulgaris, Molinia caerulea, Pleurozium
schreberi). Single record on wet clayey track edge in
young coniferous plantation. Single record also of small patch
with other mosses in damp, sparsely vegetated hollow on old
metalliferous mining ground; unshaded. At base of granitic
boulder near reservoir edge, with Hypnum jutlandicum and
other mosses. A bit growing on soil of plant pot in open air
at Burncoose Nurseries then two years later in several places
there on peaty soil, perhaps having arrived with horticultural
peat.
Recorded several times with gemmae at stem or
branch apices. One record cfr, capsules immature 6, dehisced
6.