32 A NEW LONDON FLOEA. 



between Walthamstow and Essex ;* between Weston Green and Ditton 

 Common ; between Greenwich and Woolwich olim (?) ; ditches between 

 Ware and Hertford ; ponds near 10th milestone, Romford road ; 

 Totteridge ponds ; pools near the Welsh Harp, Hendon ;* in the Cran 



'' near Hounslow ;* Hoddesdon Marsh ; near Watford ; Harefield ; 

 Whitemoor Pond ; Ash. 



HUMULUS LUPULUS. Thickets and hedges, frequent ; especially in Kent, 

 7-8. Roadside between Cray ford and Dartford; about the Grays; by 

 the Ravensbourne ; about Erith ;* frequent in a lane leading from 

 Wrotham to Cuxton ;* c. 



HYACINTHUS. See SCILLA NUTANS. 



HYDROCHARIS MORSUS-RANJE. Ditches and ponds, principally near the 

 Thames, 8. Backwater of the Thames at Walton ;* ditches in the 

 marshy meadows below Higham ;* and also below Dartford ;* between 

 Greenwich and Woolwich ; and on towards Erith.* In the Paddington 

 Canal ;* also in the canal between Harefield and Uxbridge ;* Barnes 

 Common, in the ditch right, a patch of it ;* Rainham ; Grays ; Purfleet ; 

 Egham. 



HYDROCOTYLE VULGARIS. Boggy, and wet places on moors and heaths, 

 common (plenty on Hampstead * and Putney Heaths *), 7-8. 



HYOSCYAMUS NIGER. Waste places, chiefly on a chalky soil, rare, and 

 probably almost exterminated in the metropolitan districts, 6-8. About 

 Hertford ; Mead Lane ; Ware Park ; Hatfield Park ; roadside near 

 Ware ; near Stanstead ; Essendon ; Sawbridgeworth ; Box Moor ; back 

 road ascending from church Cobham to Fairmile ; about Worplesdon ; 

 Pirbright ; near the mill, Harefield (olim) Chislehurst Heath (?) ; near 

 the palace, Eltham (?) ; on a common near Guildford (? Shalford, none 

 there now) ; Abrook Common (?) olim ; Red Hill and Reigate (? uncertain) ; 

 Nutfield; Merrow Downs ; Puttenham Heath and Common (possibly); 

 common on the chalk about Farnham ; Gomshall ; on rubbish about 

 St. Albans and Sandpit Lane. No-man's-land Common, Herts (more fre- 

 quent, perhaps, towards Cambridgeshire) ; Fyfield Wood, near Grays : 

 banks between Leigh and Southend, and Southend towards Shoebury ; 

 lane between Brockham and Godbroke ; Cookham. 



HYPERICUM ANDROS^EMTJM. Hedges, and shrubby places, not very frequent, 

 6-8. Hills E. of Merstham ; lane west end of Reigate Park ; Leith Hill 

 woods; lanes W. of Dorking ;* between Guildford and Dorking ; about 

 Claygate, Ditton ; wood between Chislehurst and Bromley ; thicket near 

 Harefield Church (?); lane leading from Broxbourne to Brickendon Green ;* 

 and other lanes in that neighbourhood ; Ashbridge woods, and woods 

 near Great Berkhampstead ; wood near Thorndoo ; between Abridge and 

 Romford ; Cookham ; Redstone Hill ; copses on the Weald Clay, below 

 Crawley, frequent. Weston Wood, Albury ; Bookham ; Stoke Wood, 



HYPERICUM DUBIUM. Rare, local, Hatfield. 



HYPERICUM QUADRANGULARE. See H. TETRAPTERUM. 



HYPERICUM PERFORATUM. Woods and thickets, common, 7-9. (Roadside 

 from Putney Heath to Kingston, by the Park ;* lane leading from the 

 * Spaniards/ Hampstead Heath, to the meadows below Bishop's Wood,* 

 &c.) 



