*2: On E-facing rocks
at base of crag by stream, 20 m alt., Rocky Valley near
Boscastle, SX08, DTH02-354 (BBSUK)
(Rothero 2003: 61).
This is the only Cornish record. It grew in mainly
pure patches totalling ca 1.5 m² on sloping
E.-facing slaty rocks at base of damp crag on slope above
stream, partly shaded by deciduous
Not seen with foliar gemmae (frequent in this
species elsewhere); not seen c.fr.