The floating liverworts of Essex
424,975 18 Baldwin's Hill Pond, c.1960. recorded on large scale pond survey
map found in documents derived from the then South West Essex
Technical College.
429,980 18 Goldings Hill Upper Pond. First appeared in the narrow leaf-filled
channel behind the island with Riccia fluitans, 28 July 1981.
Judith Adams. Later became very abundant and spread round to
the other side of the pond, June 1982. Janet M Adams. In 25 May
1985 a small patch appeared in the narrow channel only. The
channel was dredged over the winter of 1985/6, but a few thalli
managed to surface by the 27 May 1986. Kenneth J Adams. There
has been no sign of any plants, despite looking every year since.
The channel was redredged in October 1991, and again along with
the whole pond over the winter of 2000/2001.
TL(52)40 441,006 18 Pestle Pits Pond, Epping Forest, 'the one with the conduit',
plentiful one year with Riccia fluitans, Bernard Tavener Ward,
[date? sometime in the 1960s].
TQ(51)59 1 8 Dagnam Park, a pond in, 1979. Peter J Wanstall.
550,927 18 Dagnam Park, in two overgrown ponds, both at the southern end
& of Park. 24 June 1979. Kenneth J Adams.
552,928
550,927 Dagnam Park, mud form all over the bed of the dried up pond,
west of the north-south track. 20 July 1981. Kenneth J Adams.
550,927 Dagnam park, same pond recently dredged, but still surrounded by
trees. Huge population all over the surface looking like a giant
Lemna. 16 July 2000. Kenneth J Adams et EFC. Same pond, still
present June 2004, just a few tiny thalli floating on the surface; by
4 October numerous scale-less thalli stranded in a Im band on the
sunlit eastern side and floating plants all gone. Kenneth J Adams.
TL(52)51 19 Hatfield Forest, ' floating in a pond' 18 May 1942. J H G Peterken,
or 52 BBS Herbarium. Nat. Mus. Wales. Cardiff).
TL(52)5 1 520,1 76 19 Woodside Green, Great Hallingbury, floating on a pond by Lodge
Farm. 1950s. E G Eagling & John L Fielding.
TL(52)52 539,209 19 Hatfield Forest, floating on a pool in the lake marsh nature
reserve, 1982. John L Fielding confirmed Kenneth J Adams. [BBS
Herbarium and BBS Bulletin 44. 23J.
TQ(51)69 600,935 18 Shenfield Common, on soft mud of pond margins, pond dried up
and developing into secondary woodland adjoining the Common.
Autumn 1985. Michael Chambers (Brentwood School).
601,932 18 Shenfield Common, plentiful, floating form in large pond hi
Shenfield Common woodland, with Riccia fluitans and Lemna
trisulca. Kenneth J Adams et EFC.
615,907 1 8 The Horse Pond, Childerditch, on mud in centre of pond, which
was completely vegetated over with Riccia fluitans beneath tall
herbaceous vegetation. 1986. Kenneth J Adams et EFC.
TL(52)70 18 Little Baddow. 1881. H N Dixon.
Essex Naturalist (New Series) 21 (2004) 145