*1: Near Kea, S. ofTruro,
1861, ES (TRU) (Paton 1969a:
745).
*2: St Kew, NE. of
Wadebridge, 1871, RVT (CMM) (Paton 1969a:
745-746).
Grows in patches, often extensive (suggesting
long-established presence). Habitat notes from Cornwall are as
follows. A basiphile, occurring mainly on old, steep to
vertical, mortared or dry-stone walls, in slight to rather
heavy shade, e.g. on laneside banks, church, outside walls of
churchyard, on bridge abutments near stream, beside a lane in
woodland. Also on slaty rock in an old quarry shaded in
deciduous woodland. Associates recorded include Cirriphyllum
crassinervium,
Radula complanata s.
l.
Two records as epiphyte in open deciduous woodland
near R. Tamar, in large patches on trunk of large old oak tree
(from near ground to at least 5 m above it) and near ground on
old rotted stump. Associates as epiphyte were Homalia
trichomanoides,
Zygodon viridissimus var. viridissimus. Single
record on bark of old Ash tree high within inundation zone by
R. Tamar.
Not seen c.fr. in
Cornwall
by
DTH.
