*1: On poplar, Newlyn
Cliff, 1867, WC (PNZ) (Paton 1969a: 744).
(Vc1 placed in brackets because there is no recent record:
Paton 1969a: 744, Crundwell 1970: 208).
+1: On vertical rock of
lightly-shaded S.-facing serpentine crag, NE. of Gwendreath
Farm, SW71, 1997, DTH 97-408 (BBSUK, DTH)
(Rothero 1999b: 45).
*2: Trevelva, St
Minver, 1891, RVT (B) (Paton 1969a:
744).
Habitat notes for recent records from Cornwall are
as follows. NE. of Gwendreath Farm, vc1: on vertical or
near-vertical rock low on S.-facing serpentinite crag, lightly
shaded by Broom and Blackthorn bushes (associates include Hypnum cupressiforme
var. resupinatum,
Radula
lindenbergiana). Rosteague: in small quantity on vertical
mortared-stone wall beside lane, where lightly shaded. W. of
Kilkhampton: patches on steeply sloping to vertical bark of
trunks of old Ash trees (two) and very large old coppiced
Sycamores (four), in open and moderately shaded in sheltered
valley. Ethy: vertical bark of old Sycamore in parkland (near
Leucodon sciuroides
var.
sciuroides,
Syntrichia laevipila). Also recorded on Beech trunks in
parkland at Ethy by FRo and SD.
Not seen c.fr.
