*1: Trungle near Paul,
1861, WC (PNZ) (Paton 1969a:
721).
*2: Near Probus, 1861,
ES (TRU) (Paton 1969a:
721).
A.
aloides
and A.
ambigua were often misidentified prior to publication
of the Flora by
Smith (1978), so older records are referred to A. aloides s. l. unless
redetermined subsequently.
Notes on habitats in Cornwall are as follows. Grows
as scattered plants or open turfs, often mixed with other low
mosses. Calciphile; usually on dry free-draining substrates
where unshaded or at most partly shaded. Commonest on thin
soil or weathered old mortar on sides, ledges and tops of old
or ruined walls, e.g. on old mine buildings, ruin of
china-clay dry, and in quarries. Sometimes on very thin soil
or directly on old mortar or concrete. Seen once on thin film
of clay on vertical, damp concrete of wall of ruin, where
lightly shaded. Mainly grows in places with at least some bare
substrate exposed and only very low-growing associates.
Commoner associates on walls and ruins include Bryoerythrophyllum
recurvirostrum, Barbula convoluta, Didymodon fallax, Trichostomum
brachydontium; others recorded include Didymodon luridus, Gymnostomum viridulum,
Pseudocrossidium
hornschuchianum, Pseudocrossidium
revolutum. Several records from calcareous blown sand on
banks e.g. in dunes and on coastal cliffs or cliff-tops;
single records from thin soil on top of 'hedge' on cliff-top,
from partly bare patches of soil and of mine-spoil at edges of
dune-grassland. Four records from soil heaps on old mining
ground and two others from banks of earthy spoil that included
old mortar or concrete debris. Once on bare stony
soil at unshaded edge of old gravel quarry. Associates
recorded on soil include Bryum dichotomum, Dicranella varia, Fossombronia caespitiformis, Trichostomum
brachydontium.
Commonly c.fr. [only recorded with mature
capsules]: capsules immature 1-3, 8, 10-12; dehiscing 1-3,
[4], 9-12; dehisced 1-6, 8, 10-12.