*1: Tremethick Moor,
Penzance, 1876, WC (CMM) (Paton 1969a:
708).
*2: Cardinham Downs,
1880, RVT (B) (Paton 1969a:
708).
Almost all records are from wet, acidic, peaty
substrates on open areas of wet heath (including heath on
almost flat ground and on flushed side of a small valley) or
in oligotrophic mires, where it forms low hummocks or diffuse
patches. Common associates include Sphagnum
capillifolium,
Sphagnum cuspidatum, Sphagnum
denticulatum,
Sphagnum fallax,
Odontoschisma sphagni, Erica tetralix, Eriophorum
angustifolium, Molinia caerulea; less
often Sphagnum
fimbriatum, Erica
ciliaris, Narthecium ossifragum,
Schoenus nigricans,
Ulex gallii.Three
other records were from open acidic flushes; two in small
mires formed in hollows near old china clay pits or spoil
tips, with other sphagna.
One record c.fr.: dehisced 9.