*1: Branch of oak,
Lord's Wood, N. of Truro, Nov. 1961, JAP
(BBSUK) (Warburg 1962: 377, Paton 1969a:
755), as H. mamillatum. [An older report 'Trevaylor nearPenzance, 1921, Watson' (Rilstone 1926)
was a record of H. cupressiforme var. filiforme is apparently not supported
by a specimen].
*2: Bodmin, 1889, RVT
(B) (Paton 1969a: 755), as H. cupressiforme var. filiforme. Base of
Beech, roadside near Maker, Torpoint, Feb. 1961, JAP
(BBSUK) (Warburg 1962: 377, Paton 1969a:
755), as H.
mamillatum.
Clearly distinct from H. cupressiforme in characters of the capsule lid, so that
treatment as a distinct species appears correct. However, as
discussed under
H. cupressiforme var.
cupressiforme
,
non-fertile plants can be hard to identify even using
combinations of characters.
Notes on habitats in C&S are as follows. Common
as epiphyte, frequently forming large patches or sheets,
mainly on lower parts of trunks and low main branches (but typically above
level dominated by Isothecium myosuroides
var.
myosuroides) where it may form the dominant bryophyte
cover. Recorded on Ash, Beech, Grey Willow, Gorse, Hazel,
Japanese Larch, Pinus
contorta, Rhododendron, Sessile Oak, Sycamore (but
probably grows on almost all tree types and varied shrubs).
Not infrequently in open sites but commonly also well-shaded
inside woodland or groves of trees, also Grey Willow carrs and
Rhododendron scrub.
On Japanese Larch on low twigs, covering old cones, in part
shade of woodland edge. On granitic (and gabbro) rock in old
quarries and in shaded 'hedges', granitic boulders on
china-clay spoil, on granitic crags of a valley side. On firm
unshaded clay of old china clay spoil on sheltered slope. On
old roofing felt of shed under tree edges near
pool.
Common associates include Cryphaea
heteromalla,
Frullania dilatata,
Hypnum cupressiforme var. resupinatum, Isothecium myosuroides
var.
myosuroides,
Metzgeria violacea,
Metzgeria furcata,
Metzgeria consanguinea, Microlejeunea
ulicina, Ulota
bruchii, Ulota
crispa, Ulota
phyllantha.
Commonly c.fr.: capsules immature 1, [few: 2-6],
7-12; dehiscing 1-3, (4), [7 - one], 8-12; dehisced 1-7 (8-10
old), 12. Capsules much scarcer or absent in exposed sites
(including most areas within several km of exposed
coasts)
