*1: LizardDowns, 1926, HHK & WEN
(BBSUK) (Paton 1969a:
702).
All British records are from the Lizard pen., where
it has apparently been recorded from five different sites. The
latest records from two of the sites are from the 1930s, those
from another two are from the 1960s, the most recent being in
1968 (JAP); several more recent attempts to refind it
there have been unsuccessful (JAP, DTH, RDP).
A lengthy search on 15 Oct. 1998 with JAP in the
Ebenezer Triangle, at the best locality for 1960s records, was
unsuccessful. The heath was still mostly short, with plenty of
'bare' looking patches, but these mainly had covering of
gelatinous algae. The only Cephaloziella seen in
30 minutes of searching was a small amount of Cephaloziella cf. stellulifera. JAP
recalled much more Cephaloziella spp. (C. hampeana, C. stellulifera) in
1960s in similar habitats. Possibly Nitrogen pollution from
main road nearby has lead to nutrient enrichment of surfaces
and loss of small liverworts.
In March 2004 it was newly discovered at a fifth
site on the east Lizard pen., W. of Rosuick
(DTH, conf. JAP): on unshaded damp soil with
sparse low vegetation in hollow among serpentinite rocks on
heath (with sparse Entosthodon obtusus,
Cladonia; scanty Fossombronia
'husnotii', F. cf. maritima, Riccia hubeneriana,
immature Campylopus). The C. dentata had foliar
gemmae (photo), but no perianths.
