Hydrocharis morsus-ranae L.
First record: Ray, 1660
Nymphaea alba minima The least white Water-Lily, or Frog-bit. Ray,1670:221.
Cambridgeshire Fens, CC Babington, 1849, CGE.
No additional sites found in 1989, R Payne.
29
Bassenhally Pit, 28-98-, FH Perring, BSBI exc. 1.8.1993, [R].
Scattered, Bassenhally Pits outfall, Whittlesey, 288.988, R Payne, 8.1988.
West of Bassenhally, 28-98-, A Brown, 17.8.1994, [R]; 29-98-, NW of Bassenhally, NP Millar, 10.9.1997, [R]; Drain from Bassenhally Pit NE to Moreton's Leam, 28-98-, NP Millar, 12.9.1997, [R].
Drain E side of W Delph, 26-98-, NP Millar, 9.9.1997, [R]; 27-98-, East Delph Lakes and drains (new fishing lake), A Brown, 17.6.1994, [R]; East Delph lakes and drains, 27-98-, (most marginal species introduced by owner), NP Millar, 10.9.1997, [R]; Drain along W side of East Delph, 27-98-, NP Millar, 10.9.1997, [R].
Ditch off Morton's Leam, 289.989, JH Bratton, 16.8.1986; Counter drain to Moreton's Leam, Nene Wash, 259.982-264.982, R Payne, 1980; abundant and in flower, 259.982-264.982, R Payne, 3.7.1988; G Crompton & R Payne, 5.7.1988.
Very abundant in many ditches inside Nene Washes to NE in TL29, R Payne, 8.1988; Nene Washes, RSPB Reserve, 28-99-, JH Bratton, 19.8.1988 [same loc. as R Payne above]; very abundant from c. 260.989-275.993, R Payne, 8.1988.
Nene Washes, RSPB Reserve, 276.992, fruiting plants freq. in some ditches, CD Preston & MD March, 1995, Wats.21(2):206.
Whittlesey, Newbould, Bab.1860; Whittlesey Washes, ditches from 27-99- to 29-99, CD Preston & S Webster, 11.8.1991, [R]; 28-99-, G Crompton, CD Preston, S Lambert, FH Perring, BSBI exc. 1.8.1993, [R]; Common Wash, 26-98-, NP Millar, 9.9.1997, [R]; Whittlesy Washes, 27-99-, ditch onW of track from car park, CD Preston & S Lambert, BSBI exc. 1.8.1993, [R]; Whittlesey Washes, 29U, T Pankhurst et al., 9.8.2002, [R].
36
Pond, Swavesey, 361.699, RJ Pankhurst, 1972.
37
Middle Fen, Swavesey, 35-70-, large population with only 2 plants fruiting, CD Preston & MD March, 1955, Wats.21(2):206.
Pond in Middle Fen, Swavesey, 362.704, JO Mountford, 26.9.1985.
Large overgrown ditch, Middle Fen, Swavesey, c. 360.708, JO Mountford, 2.9.1987.
Swavesey, small pond, 362.703, R Payne, 1988; 360.708, JO Mountford, 1990, [R].
Ditch, Counter drain of R. Ouse, 361.707-362.710, R Payne, 1988.
Abundant, R. Ouse Counter Drain, Swavesey, 360.708, JO Mountford, 13.9.1989.
Locally abundant, ditch, tributary to R. Ouse Counter drain, 362.710-364.705, R Payne, 1988.
38
Forty Foot opposite Betty's Nose Farm, Benwick, 339.879, NP Millar, 24.9.1997, [R].
Forty Foot and at bridge, Benwick, 38N, 39P, DA Wells & M Gurney, 21.8.1999, [R].
Forty Foot at Dock Bridge, Chatteris, 394.882, (38Z) NP Millar, 18.7.1998, [R].
Forty Foot at Puddock Bridge, Doddington, 351.880, NP Millar, 24.9.1997, [R].
Turf Fen, AF.cat.
Twenty Foot, Chatteris, 378.889, PH Oswald & RH Richens, 21.8.1999, [R].
Twenty Foot at junction with Forty Foot, 386.884, among much Lemna minor, PH Oswald & RH Richens, 21.8.1999, [R].
39
Very abundant in medium sized ditches with open water from 302.997 to New Come Over, 307.997, R Payne, 24.8.1988.
Whittlesey Washes, 30-98-, S Lambert, BSBI exc. 1.8.1993, [R].
44
Formerly grew in the ponds and ditches in the low places on Triplow and Foulmire Moor, but since the enclosure and drainage of these places has caused it entirely to disappear....grew upon the locality shown on the sketch. [Ninewells]. Maynard MS.13:328b.CRO.
45
In the ditches cut out of the river Cam behind Peterhouse, and infinite other ditches. Ray,1660,100-101(86).
Cambridge, 30.7.1877, Bent.ann; Ditches, nr Cambridge, n.c., 1866, CGE.
Cam JM.ann; In the river Cam, and on it's Banks. Martyn,1763,Herbat.XIII.
Morsus Ranae Cam. Th.M.ann.Meth.-Index Loc.3; Cam. Fisher ann.Berkenhout,274.
Cow Fen. Bab.1860; Coe fen, H.D.ann.
Sheep's Green, Cambridge. West,1898,256; A Malins Smith, 18.8.1905.
Morsus Ranae Granchester Th.M.ann.Meth.-Index Loc.8; Granchester. Martyn,1763,Herbat.V; G(ranchester). Fisher ann.Berkenhout,274; Granchester, J Martyn, Bab.1860.
Pond, Little Shelford, 45-50-, M Powell, [R].
46
In fen ditches, Baitsbite, PGM Rhodes, 1905, CBSC.
Ditch near Baitsbite, EA George, 1939.
C(hesterton) ---Fisher ann.Berkenhout,274.46; Ditches, Chesterton Common, W.L.P.G., 3.8.1824, SWN; Chesterton. Bab.ann.Relhan,411; Bab.1860,222.
Ditches, Ditton Meadows W.L.P.G., 7.1825, SWN; Ditches by the path to Fen Ditton & by the towing path. 1835,Coleman(a),52; Fen Ditton. Bab.1860,222.
Histon Road, Bab.1860.
Horningsea, Bab.1860; H.D.ann.
Milton Fen. Bab.ann.Relhan,411; Milton fen; SWW. Bab.MS.Fl.3:705; Milton. Bab.1860,222; HD.ann; Milton Fen, Mills ann; Ditch, Milton Fen, (J 21), APD Jones, 1939.
Waterbeach, Bab.1860; Waterbeach, Mills ann; H.D.ann.
47
Morsus ranae flore pleno odoratissimo nondum descriptus In a ditch by the side of Audrey causey, close by the great wooden bridge plentifully. Ray,1660,100-101(86).
* Morsus Ranae flore pleno odoratissimo, N D. In a Ditch by the side of Awdrey Causey, close by the great wooden Bridge, plentifully, CC. Merrett,1667,79.
Nymphaea alba minima flore pleno odorato Double-flower'd sweet Frog-bit. In a ditch by the side of Audrey Caussey-close, by the great wooden Bridge, plentifully. Ray,1670:221.
Nymphaea alba minima flore pleno odoratissimo Cat.Cant. Double-flower'd sweet Frog-bit. In fossa palustri ad latus aggeris seu calceti, Audrey Caussey dicti, prope pontem ligneum in insula Eliensi. Ray,1690,207; Ray,1696,279; Ray,1724,290.
Morsus ranae fl. pleno Audrey Causey JM.ann.
Morsus Ranae flore pleno Audrey Causeway Th.M.ann.Meth.-Index Loc.1; Audrey Causeway, (flore pleno). Martyn,1763,Herbat.XII; Audrey Causeway Fisher ann.Berkenhout,274; Frog-bit. b In a Ditch by Audrey Causeway, by the great wooden Bridge. Relhan,1785; Hydrocharis morsus ranae - I have searched in vain for the b there was formerly a wide ditch on the edge of the common, near Audrey causeway. Relhan,litt.1799; 'I had hopes to send you Hydrocharis mor-ran: b. I have been six or seven times to Audrey Causey, the plant I am afraid is lost - last year I found one or two specimens hexapetalous.' Relhan in litt. to Smith, 5.9.1800a, LINN; Hydrocharis morsus ranae a holt near the great bridge at Audrey causeway where the Hydrocharis with a double flower grew once: it is not there today. Newmarket, 30.7.1801, Relhan in litt. Sowerby,47:45; Ray mentions a variety with fragrant double flowers, which Mr. Relhan informs us is not now to be found in the place he indicates. Flowers with 6 petals now and then occur. Smith,Eng.Bot. (1801) 12:808; In a Ditch by Audrey Causeway, close by the great Wooden Bridge. Ray. Not found since his time. Relhan,1802;1820; Aldreth Bridge, Bab.1860.
Ditch on Burystead Farm, AF.Flora.
Sutton, AF.cat.
48
Forty Foot, 42-87- and 435.869, NP Millar, 17.8.1997, [R].
Manea, AF.ann.
Mepal Bridge, JSL Gilmour, 1930.
Horseway, [?Homeway] A.F.cat; Horseway Pits, AF.cat.
The Washes, AF.ann; Ditch, Ouse Washes, 451.823, CJ Cadbury, 7.1972, (not recorded recently on Ouse Washes, f. 10.1980.)
Welchs Dam, AF.cat; Near Welches Dam, 47-85-, Ouse Ditch Survey, Grose & Allen, 1978.
49
16ft. drain near Wimblington, JSL Gilmour, 1930; drains, Wimblington, 46-94- & 46-93-, NP Millar, 12.7.2003, [R].
56
Bottisham Fen. Bab.ann.Relhan,411; Bab.1860,222.
Hydrocharis Morsus Ranae...occurred in Reche Lode, Jenyns,JNH,25.7.1826.
Reach Lode, AJ Crosfield, 11.8.1922, CGE.
57
Stretham, JS Henslow, 5.8.1822, CGE; Stretham Ferry, CEM ann; Old West River, Stretham, EM Walker, 1907,CGE; Pond by river, near Elford Closes, DH Valentine, c.1936; A pond near the River (Great) Ouse near Elford Closes, Stretham, in fruit, JE Dandy & G Taylor, 19.8.1932, BM, Wats.21(2):206; In pit, Elford Closes nr Stretham, 501.721, PD Sell, 61/588, 17.8.1961, CGE.
Upware n.c., 21.7.1829, NTM.
Wicken. Bab.ann.Relhan,411; Wicken Fen. Bab.1860,222; H.D.ann; Wicken, 21.7.1910, Gray,ann; Wicken Fen, J Blades,ann.Bab; Wicken Lode, CE Moss, 5.10.1910, CGE; West ann; Evans,1923; Lode on Sedge Fen, Wicken, CD Pigott, 7.1947, CGE; Wicken Lode, SM Walters, 1951.
58
Ely. Martyn,1763,Herbat.XII; E(ly)flore pleno Fisher ann.Berkenhout,274; Ely. Bab.ann.Relhan,411; Near the Bridge, Ely, West ann.
Littleport, E---, JE Little, 8.1878, CGE' Littleport, Ely, n.d., JE Little Diaries, VI:144, HTN.
NE of Pymore Viaduct, 50-89- Ouse Ditch Survey, Grose & Allen, 1978.
Roslyn Pits, RI Lynch & W Hillhouse, 18.6.1880, CUBG 84/80; Went to Rossall Pit at Ely, with Potter, Cowell, and some students. We found...on our way back Hydrocharis, by the north side of the river. We took a boat from Ely to the Pit. 9.8.1887. Bab.Mem.251; Roswell Pits, Cowell Hb., 9.8.1889, IPS; A Shrubbs, 10.8.1887, CGE; West ann.
67
Isleham, Fryer. Bennett,1899,245; AF.ann.
68
Great Shell Farm, Prickwillow, JE Little, 20.6.1914, CGE; and BEC Rep. 1926,104.
30
Moreton's Leam, near S edge, Nene Washes, 350.006-351.006, for c. 50 yds from Poplar House Farm and west, 2 or 3 non flowering patches, DA Wells, G Crompton & J Bulleid, 6.7.1998.
40
...At Needham Hall, Friday Bridge, Elm. 1818. It grows in Fen ditches in the neighbourhood of Wisbech. not uncommon. Skrim.MS.
Elm, n.d., JE Little Diaries, VI:144, HTN.
Wisbech, J Balding, Bab.1860.
