*1: Carn Galver, 1861,
WC (PNZ) (Paton 1969a: 717).
*2: Roche Rock, 1870,
RVT (B) (Paton 1969a:
717).
Forms deep, rounded cushions on exposed rocks,
looser patches on rocks in woodland. Grows mainly on inclined
or vertical surfaces and in small crevices of granitic rocks,
occasionally on thin soil over rocks. Locally frequent and
plentiful in small areas, mainly on open hillsides and slopes
near tors; often unshaded or only partly shaded and mainly on
N.-facing slopes, but sometimes in shaded crevices and twice
found inside deciduous woodlands. Plants intermixed in its
cushions or at their edges sometimes include Barbilophozia
attenuata, Lophozia
ventricosa, Scapania gracilis. A
single [unconfirmed] report as epiphyte in Cornwall (Ethy: FR or
SD).
Three records c.fr. (vc2): capsules immature 2, 3,
5, 12.