*1: Trembath Mills,
Newlyn, 1865, WC (PNZ) (Paton 1969a:
747).
*2: Caerhays near
Portholland, 1837, EAW (TRU) (Paton 1969a:
747).
Habitat notes from C&S are as follows. Most
often a calciphile, but apparently not always. Frequently near
water, in open and shaded. Common on concrete or mortar or
over softer stones of old walls, unshaded (but mainly where
humid or sheltered) to moderately shaded. Also on and beside
blocks or bits of dumped calcareous masonry, in open or part
shaded. At bases and sometimes higher on concrete fence-posts,
not or part shaded. On blown sand shaded by grasses and
Bracken near coast. On soil with very short turf on upper part
of sea-cliff. On granitic and serpentinite rocks near and
above water level of streams. Soil of banks and over masonry
debris in old mine areas, unshaded to lightly shaded. On damp
decorticated wood of fallen elm trunk near stream. Common on
silted bark of trees and firm soil within flood-zone on banks
of rivers, and in upper parts of inundation zones beside
reservoirs, usually part shaded. On Sycamore trunk above flood
level beside stream. Decorticated wood of fallen tree trunk,
in open. Bark of trunks and living branch low on Elder bushes
(with Rhynchostegium
confertum). Damp sand in fenny area near stream at edge of
dune grassland; unshaded.
Recorded associates often include Bryum capillare, Didymodon insulanus,
Oxyrrhynchium hians, Kindbergia praelonga,
Rhynchostegium
confertum, Tortula
muralis, Zygodon
viridissimus, also Sciuro-hypnum
plumosum, Bryum
donianum, Lejeunea
cavifolia, Leptodictyum riparium,
Radula
complanata.
Commonly c.fr.: capsules immature 1-7, 12;
dehiscing 3-8 [10, 12]; dehisced (1-4, 6 old),
6-12.
