Eton: Mr. Gotobed.— Cambridyesh. Hiveis and ditches: Rev. R. Reliian. 
In the brook between Barton and Grantchester : \V. II. Coleman, in N. B. G. — 
Cumberland ; Near Keswick: Mr. Hutton.— Dorset ; In the Stour, in many 
places; in the Froome and Fiddle, near White Cliff, by Blandford : Dr. Pui.- 
teney. — Durham; In a pond near the Friar’s Goose, east of Gateshead: 
N. J. Winch, Esq . — Essex; In the Rhodon near Wanstead: Mr. J. Woods, 
jun. About Woodford: FI. Metr. — Gloucestersh. Near Bristol: Miss VVoa- 
si.ey , in N. I>. G. — Hants ; Near Fordingbridge: Dr. Matos. — Kent ; North- 
fleet : Mahtyn. Common near Faversham : E. Jacob, Esq. 1777. South 
Kent: Rev. G. E. Smith. Tunbridge Town : FI. Tun. Between Greenwich 
and Woolwich ; between Lee and Eltham ; and in the river by the road-side at 
Mary Cray: FI. Metr. — Leicestersh. In the river Soar between Loughborough 
and Leicester; above the Castle Mill, at Leicester : I)r. Pulteney. — Lincolnsh. 
Near Friestone; 1826: Dr. Howitt, in N. B. G. — Middlesex ; Biick-field near 
Tyburn Turnpike ; and between Rotherhithe and Deptford: Martyn. River 
at Harefield : FI. Metr. Thames side between Hampton Court and village : 
Mr. Watson, in N. B. G. — Norfolk; Furze rivulet, Diss; and frequent near 
Bungay: Mr. Woodward. Ditches at Acle by the side of the road, between 
Y armouth and Norwich, plentiful ; and elsewhere in the county, not uncommon : 
D. '1 uiiNEn, Esq.— Northumb. Ditches near Alnwick: Mr. R. Kmei.cton, in 
N. B. G. — Notts. Old Trent ditches, near Averham Meadows (Ordoyno) ; banks 
of the Crete, near Southwell: N. B. G. — Somersetsh. Buttle 'Jurf-moor; 
ditches in the Sedgmoors, frequent : J. C. Coi.lins, in N. B. G .—Suffolk ; Near 
Bungay ; banks of the Waveney between Bungay and St. Olaves: Mr. Wood- 
ward. In the larger ditches near the river at Beccles; and at Worlingham; 
Cove, Stc. : Rev. G. Crabbe. Marshes between Yarmouth and Burgh Castle : 
Mr. Wicg. — Surrey ; Barnes Common: FI. Metr. Thames above Hampton 
Court Bridge: Mr. Watson, in N. 13. G. — Common in Sussex: W. Boriier, 
Esq. — In Warwickshire : Rev. W. T. Bree — Westmoreland ; Stockbeck: 
N.B. G. — Worcestersh. Blakedown Pool near Stourbridge: T. Pom on, Esq. 
By the Wier, at Newman’s Bridge, near the Devil’s Den, Clifton-on-Teme : 
Air. Lees. — Yorkshire ; Ditch at York; Foss Navigation near York, in plenty ; 
near Whitgift on the banks of the Ouse : B. G. Leeds : H. Denny, in N. B. G. 
— WALES. Anglesey ; In Cors ddygai, near Berw ; rare: Rev. H. Davies. — 
In SCOTLAND and IRELAND, but not common. 
Perennial. — Flowers in July and August. 
Root fleshy, creeping, with many long fibres. Stems from 3 to 
6 feet high, upright, smooth, angular, and deeply furrowed, hollow, 
leafy, not much branched. Leaves pinnate, of from 2 to 6 pair of 
large, opposite, spear-shaped, pointed leaflets, with an odd one, all 
sharply and regularly serrated ; those of the leaves which grow 
under water being often doubly pinnatifid, with very narrow seg- 
ments. Umbels large, terminal or axillary, stalked, manv-rayed, 
flattish. Universal and Partial Involucrums of several spear- 
shaped, sometimes serrated, leaves, with membranous margins. 
Flowers white ; teeth of the calyx elongated ; petals nearly equal, 
inversely heart-shaped, infiexed. Fruit small, shortly egg-shaped, 
striated. Styles permanent, reflexed, slightly tumid at the base. 
Carpels (fig. 7.) with 5 stout, rounded, prominent ribs; the inter- 
stices striated ; with many vittse ; the commissure (inner face of the 
carpel) with 6 vittue. 
This plant is a native throughout the whole of Europe and North 
America, in ditches and marshes. It is of an acrid and poisonous 
quality, particularly the roots. According to the observations of 
Linnaeus, horses and swine eat it ; sheep are not fond of it ; cows 
and goats refuse it. The roots are noxious to cattle, rendering them 
quarrelsome and pugnacious. The seeds are aromatic and warm 
to the taste. 
