*1: Trengwainton,
Penzance, 1867, WC (OXF) (Paton 1969a:
707-708).
*2: Cardinham, 1882,
RVT (B) (Paton 1969a:
707-708).
Forms patches or more extensive lawns. Habitat
notes from Cornwall are as follows. On wet, acidic substrates
in open or slightly to moderately shaded places; twice on wet
heaths (vc1; once with Sphagnum fallax);
other records: once at base of tall Molinia caerulea tussocks in
degenerating mire, twice in young colonising carr of Grey
Willow on degenerating mires, four times in old, sometimes
rather open, carr of Grey Willow (where perhaps relict of more
open conditions; near Sphagnum fallax, Sphagnum subnitens);
flushed stream bank in deciduous woodland, damp N.-facing
hillslope at edge of Sessile Oak wood; three times from wet
marshes at edges of china-clay workings or spoil heaps (in two
of the sites forming large hummocks among Molinia tussocks);
once from marshy hollow near old mine-spoil and at edge of
Grey Willow carr. Several times in open mires among other
sphagna, Juncus or
Molinia tussocks,
but then usually where some flushing or nutrient or mineral
enrichment is apparent, and generally in more mesotrophic
habitats than Sphagnum
papillosum. In vc2, also as colonist of mires on old
china-clay areas, e.g. below old china-clay spoil heaps and
small wet hollow at edge of working china clay pit. Patches in
open grazed mire; acidic flushes on open grassy hillsides and
once in flush in pasture, slightly shaded (near Sphagnum inundatum).
Twice on damp ground of stream banks, in open or slightly
shaded (with Sphagnum
inundatum). Associates recorded in carr include Sphagnum squarrosum
(once), on degenerating mire with or near Sphagnum denticulatum,
Sphagnum fallax, Sphagnum subnitens,
much Molinia
caerulea. Near old china-clay pit with Polytrichum commune,
Sphagnum
fimbriatum, Juncus
effusus. Unusual record of small plants in plant-pot
containing small shrub at Burncoose Nursery; presumably grown
from spores in horticultural peat.
Occasionally (?) c.fr.: capsules dehisced
10.
1.4.b Var. centrale
(C.E.O.Jensen) A.Eddy is regarded as a distinct taxon (as in
Daniels & Eddy 1990: 50, Hill et al. 2008), but all
Cornish records should apparently be referred to var. palustre.
