*1: On Sphagnum in bog near
Porthmeor, Zennor, 1967, JAP (BBSUK) (Paton 1968c: 624, 1969a:
699).
*2: Brown Willy, 1918,
FR (BM) (Paton 1969a: 699). Castell (1950:
377) listed a gathering made by FR from the same locality in
1949 as new for vc2.
On more or less bare peaty surfaces in mires,
including tops and sides of hummocks and banks (often growing
from gelatinous algal films), on living sphagna, also on
vertical damp peat of low bank at edge of acidic flush on open
hillside. Normally fully insolated or almost unshaded,
sometimes moderately shaded by overhanging banks. Associates
include Calypogeia
fissa, Calypogeia
muelleriana, Cephalozia
bicuspidata, Cephalozia connivens,
Lophozia
ventricosa, Odontoschisma sphagni,
Dicranella
heteromalla, Sphagnum
capillifolium, Drosera rotundifolia;
less often Campylopus
pyriformis, Kurzia
sylvatica, Odontoschisma
denudatum.
Normally with plenty of foliar gemmae, but
occasionally with none or very few on substantial patches of
the plant (which then need careful checking to avoid confusion
with Mylia
taylorii). Cper: 10. Single
record c.fr.: one nearly mature sporophyte at Harpur'sDowns, 23 Sept 2000 (sporophytes very
rare according to Paton 1999).
