*1: Sunset, Kea near
Truro,
1859, EAW (TRU) (Paton 1969a:
750).
*2: Withiel, before
1907, RVT (B) (Paton 1969a:
750).
Habitat notes from C&S are as follows. Common
as epiphyte, mainly on lower parts of trunks, where often
forms extensive sheets and locally dominant in many Cornish
woodlands and in old Grey Willow carrs. This species
along with Hypnum
andoi, Hypnum
cupressiforme var.
resupinatum and Metzgeria furcata are
the most shade-tolerant of the common epiphytes. Where it is
abundant on trees, I. myosuroides mainly
occurs lower on trunks than Hypnum andoi or Hypnum cupressiforme
var.
resupinatum. Recorded on Alder, Ash, Beech, Grey Willow,
Elder, Hazel, oaks, Sycamore, but probably tolerates almost
all types of tree. Extends into upper part of flood-zone
beside R. Tamar and on boulders near some other rivers and
reservoir edges.
On granite and slate rocks in old quarries and on
their spoil, on laneside banks (extending onto firm soil at
some localities), on walls, on steep rocks in 'hedges' (where
extending also on to firm steep soil substrates), on boulders
in heaths and acid grassland, about tors, upper part of
exposed sea-cliffs. Abundant on steep and vertical granitic
rocks of crags and boulders in deciduous woodland, in open and
in shade, often forming extensive patches. Extends onto firm
soil substrates on laneside banks. Also on gabbro boulders
near coast. An unusual record of plenty on cast-iron of old
pipe above river bank, lightly shaded by
trees.
Common associates include Kindbergia
praelonga, Hypnum
andoi, Hypnum
cupressiforme var.
resupinatum,
Thuidium tamariscinum, also Diplophyllum
albicans, Frullania
tamarisci.
Commonly c.fr.: capsules immature 1-3 (4), 7-12;
dehiscing 1-3 [4], 10-12; dehisced 1-5, 7-10,
12.
