1962, JAP (BBSUK) (Paton 1969a:
702). [An older report (Porthkea nearTruro,
WEN & HHK, in Rilstone 1926) is not supported by a
specimen: Paton 1969a: 702].
*2: Soil on roadside in
woodland, W. of Killiow, Tregony, Dec. 1961, JAP
(BBSUK) (Paton 1962: 361, 1969a:
Forms small, thin patches or grows as sparse
scatter of stems on partly bare substrates. Habitat notes for
localities in Cornwall are as follows. S. of Gweek: on thin
soil under overhangs on low slaty cliff at edge of creek,
partly shaded at edge of Sessile Oakwood; Ditrichum subulatum is
commonly an associate; some patches being overgrown by 'slime'
of algae. Mawgan Creek: steep overhanging head of W.-facing
low cliff beside creek, part shaded by deciduous woodland
edge. Stanbury: partly bare steep soil of laneside bank ca 500 m inland of
north coast of vc2. W. of Lamorran: on steep loamy soil of
laneside bank partly shaded by trees (with Calypogeia arguta, Cephalozia
albicans). Penryn: thin steep soil over slaty rock ca 2 m above H.W.M. on
low cliff beside creek, part shaded by mature oak tree. Other
associates recorded: Cephalozia
bicuspidata, Epipterygium tozeri,
Commonly (not always) with foliar gemmae. Commonly
(?) cper: 4. Antheridia: 12.