*1: Polglase N. of
Gweek, 1963, JAP (BBSUK) (Paton 1969a: 726).
[Earlier report (Carbis Bay, 1921, WW, in Rilstone 1926) not
supported by specimen: Paton 1969a:
726].
*2: Near St Breward,
1909, RWS (TRU) (Paton 1969a: 726). This
record is older than that listed as new for vc2 by Warburg
(1957: 332).
Usually grows in small tufts, less often as larger
patches. Habitat notes from Cornwall are as follows. On moist
rocks (granitic, slaty, gabbro) and thin soil over rocks, on
vertical to horizontal surfaces. Only recorded from close to
rivers, streams and trickles (once near a small waterfall), in
light to rather heavy shade in deciduous woodland, groves of
trees, beneath retaining wall of a bridge and in a disused
railway cutting. One record was from flood zone at edge of R.
Camel. Associates recorded are Fissidens bryoides
var. caespitans, Fissidens polyphyllus,
Heterocladium
heteropterum var.
heteropterum, Lejeunea lamacerina,
Mnium hornum, Rhizomnium
punctatum.
Not seen c.fr. (archegonia seen:
12).