The Essex Naturalist 125
?????? 19 Saffron Walden, "common around Walden", c.1850.
George S.Gibson. Flora of Essex, p.405. 1862.
TQ(51)67 ??????? 18 Near Grays, brackish pool near River Thames,
October 1927. James Groves. Natural History Mus.
Herbarium (BM). Atlas Specimen No. 1234.
??????? 18 Near Grays, 29 October 1927. J.A.Williams. Legit.
C.E.Britton. Natural History Mus. Herbarium (BM).
TQ(51)69 62,91? 18 Ingrave, near Brentwood, c.1850. W. Hind. Flora of
Essex, p.406. 1862.
TL(52)60 667,067 19 Writtle Agricultural College, farm reservoir, stunted
form in shallows, with short branchlets and small,
initially developed, but rapidly deciduous spines.
September 1997.
Coll: Martin Heyward, det: K J Adams.
TL(52)61 66 ,11? 19 Chignall, near Chelmsford, pond, July 1876. Robert
Miller Christy.
Specimen in Passmore Edwards Museum
Herbarium (SRD).
629,182 19 Bishop's Green, large ditch, 18 August 1966, John R.
Ironside-Wood. (J.RIl-Ws record cards and Flora of
Essex, p.45. 1974).
641,155 19 High Easter, ditches, 5 July 1964. John R.Ironside-
Wood. (J.R.I-W's record cards & Flora of Essex.
p.45. 1974).
651,133 19 Mashbury, pond, 8 July 1966, John R.Ironside-Wood.
(J.R.I-W's record cards & Flora of Essex, p.45.
1974).
665,137 19 Pleshey, reservoir, 20 August 1965, John R.Ironside-
Wood. (J.R.I-Ws record cards & Flora of Essex,
p.45. 1974).
TL(52)62 652,257 19 .Linsell, abundant in pond at Lashley Hall, 25 July,
1965, John R.Ironside- Wood. (J.R.I-Ws record cards
& Flora of Essex, p.45. 1974).
TL(52)71 705,185 19 Little Leez, Lodge Lake Reservoir, abundant in the
shallows, antheridia and oogonia present, with var.
longibracteata. 31 July 1991. Coll: & det: Tim Pyner.
748,125 19 Boreham, old gravel pit nr. Brent Hall, dense
decaying mass in deeper water, antheridia and
oogonia present, growing with Nitella flexilis and
Potamogeton berchtoldii. 14 July 1990. Tim Pyner.
TL(52)73 79, 31 19 Pond in Shardlowe's Wood, c.1965. Coll: Stanley
T.Jermyn, det: Eric Saunders. Flora of Essex., p.45.
1974.