*1: Near Lamorna, 1879,
WC (OXF) (Paton 1969a:
715).
*2: Wet rocks in old
slate quarries, Trewarmett, N. of Delabole, Apr. 1958, TL
(Warburg 1960: 772, Paton 1969a: 715).
Mainly in wet, flushed places on and above granitic
sea-cliffs of Land's End Peninsula, both N.-facing and
S.-facing, on firm sloping rocks, crumbling rocks, thin soil
over rock and gritty soil in edge of a stream. Commonly almost
or quite unshaded, but also in small quantity on underside of
overhanging rock with trickling water, and occurring in
quantity quite low on N.-facing sea-cliffs. Commonly lacks
closely associated bryophytes, although others occurring
nearby may include Didymodon tophaceus, Solenostoma
gracillimum, Scapania undulata and
occasionally Dicranella
palustris and Philonotis rigida.
Atypical record at Carwinion of small amount of weak,
straggling plants growing close to edge of shallow water on
granitic rock of 'bowl' in ornamental
gardens
Not seen c.fr.
