by Dr M Lueth ©.
*1: Trefusis nearFalmouth, 1833, EAW (TRU) (Paton 1969a:
*2: Trevanion, Wadebridge, 1905, RVT (B) (Paton 1969a:
On calcareous stone (slates), concrete, old bricks,
or mortar of walls (including bridges, buildings such as
churches, and ruins, etc.). Habitat notes from C&S are as
follows. Mainly on man-made structures, also in old quarries.
Often on vertical surfaces, sometimes in rather dry places
under overhangs. Commonly in moderate to heavy shade, but
sometimes also grows fully insolated. Single record of small
patch on rather thick layer of soil on ledge of old wall.
Commonly in pure patches in shade; recorded associates include
Homalothecium sericeum, Neckera complanata, Tortula muralis, Zygodon viridissimus
less often Eucladium
Commonly c.fr.: capsules immature 1-4, 7, 9-12;
dehiscing 1-3 , 10-12; dehisced 1-6, 10, 12.