The floating liverworts of Essex 467,077 466,076 TL(52)41 490,173 TQ(51)58 572,855 TL(52)51 52,15 TQ(51)69 601.931 615,907 19 Lalton Common Pond, edge of Mark Bushes, on mud at southern end of pond, 22 October 1967. Janet M Adams. 19 Small pond in Mark Bushes, 7 June 1986. Kenneth J Adams. 19 Tednambury, drainage ditch in Stort Valley, floating and terrestrial forms, 15 August 1980. Kenneth J Adams. 18 Cranham Marsh, on damp clay by drain from Spring Wood to MiddleWood. 1990. Kenneth Hill. 19 Hatfield Heath, pond just north of. 1959. Eric Saunders. 18 Shenfield Common, large pond in secondary woodland, with Ricciocarpos natans, July 1987. Kenneth J Adams. 18 The Horse Pond, Childerditch, now dried up, on mud in centre of pond with Ricciocarpos natans under Juncus effusus. 13 July 1986. Kenneth J Adams et EFC. 18 Danbury, Backwarden, in old gravel working, abundant as terrestrial form on rotting leaves, 4 October. 1993. Tim Pyner. 1 9 Boreham, old gravel pit, floating form, 10 November 1986. Tim Pyner. 19 Great Totham, old gravel workings, terrestrial form on damp soil under Salix. 3 August 2002. Tim Pyner. 19 Pond in Twinstead Wood, 1966. Peter J Wanstall. 19 Daws Hall, abundant in drainage ditch. 23 August 1981, Kenneth J Adams. 19 Layer Wood, small pond in NW corner. 2003. Peter Wilson. 19 Layer Marney, 1861. Dr Ezekiel G Varenne. Essex Naturalist 22: 76. 19 Warren Plantation, eutrophic marsh opposite Colchester Zoo. 1968. Kenneth J Adams. 19 Fingringhoe Wick N.R., floating form in pond by Arch Hall, 1969. Stanley T Jermyn. Fingringhoe Wick N.R., floating form in dense rafts, pond near the entrance and in the winter wet ponds, 8 September 1979. Kenneth J Adams. Fingringhoe Wick N.R., more or less permanent in the gravel working ponds at the Wick. Present in quantity in the Sand Martin Cliff pool. October 3991. Kenneth J Adams & Tim Pyner. 19 Rowhedge Pits, small gravel working. 14 April 1982. Kenneth J Adams. 19 Fingringhoe Village Pond, 2002. Peter Wilson. 19 nr. Ardleigh Reservoir, 1987. Bill Chisholm. 19 nr. Ardleigh Reservoir, 1987. Bill Chisholm. TL(52)70 780,036 TL(52)71 757,114 TL(52)81 85,11 TL(52)83 85 ,35 88,37 TL(52)91 91,18 TL(52)92 950,221 TM(62)01 04,19 TM(62)02 025,212 028,204 031,293 025,289 148 Essex Naturalist (New Series) 21 (2004)