46 A NEW LONDON FLOEA. 



and Sonning, in Berks ; ponds west side of Ball's Wood ; pond between 

 Mangrove Lane and Brickendonbury Park ; ponds by the high road 

 between Bell Bar and Mil ward's Park Wood ; banks of canal between 

 Hanwell and Brentford ; ditches about Ditton and Chertsey. 



(ENANTHE FLUVIATILIS. Streams, not very general, 7-9 ; in the Lea 

 above Chingford Mills ;* in the Colne, plentiful,* (between Watford, 

 Harefield, and West Drayton) ; in the Thames by Chertsey ;* in the Lea, 

 near Hertford, beyond scarce. 



(Etiothera biennis. Incidentally, about London, and rather frequent, 7-9. 

 About the reservoirs at Walthamstow ;* waste places in the suburbs ;* 

 railway bank near Weybridge, abundant ;* also railway banks, Sutton ;* 

 Coulsdon ; Lewisham ; Warley. 



ONOBRYCHIS SATIVA. Chalky downs, frequent, 6-7. Fields bordering Da- 

 rent Wood ;* about Croydon ;* Reigate Hill ; fields and banks in many 

 places along the Surrey and Kentish downs, both cultivated and appa- 

 rently wild.* 



ONONIS SPINOSA. Barren pastures and borders of fields on a clay soil, 

 common, 6-9. (Plenty on Hampstead Heath, E., near the reservoirs ;* 

 Barnes Common.*) 



ONONIS ARVENSIS. Pastures, roadsides, and borders of fields, on a chalky 

 soil. Everywhere on the Surrey and Kentish downs ;* roadsides, ex. be- 

 tween Croydon and Selsdon,* and between Croydon and Sanderstead,* 

 Box Hill, &c.* 



ONONIS RECLINATA. Sea-shores, rare, 7-11; shore at Northfleet (?) 

 (not seen). 



ONOPORDUM ACANTHIUM. Waste ground and roadsides in a gravelly and 

 chalky soil, not common. Borders of Dartford Heath, rather frequent* 

 (E. de C.) ; and roadside between the Heath and Greenstreet Green ; 

 Gravel Hill, between Swanscomb and Northfleet ; Erith (?) ; North- 

 fleet (?) ; Lewisham chalk-pit (?) olim ; Caterham Junction, a plant or 

 two ;* Walton Heath, E. of Hertford, by the Ware road ; side of the 

 Colne, E. of Colnbrook ; Fyfield ; Barking ; Grays ; Tilbury ; Southend. 



OPHRYS APIFERA. Both on chalky and on clay soils ; on the former, 

 especially in the metropolitan districts, scarce, 6-7. Box Hill ;* old 

 quarries W. of Dorking ; Purfleet (?) olim ; about Northfleet and 

 Gravesend (?); old chalk-pit on Morant's Court Hill - r chalk-pits, Hare- 

 field ; Cookham and Bisham hills ; Reigate Hill ;* Purley Downs ; 

 banks bordering Croham Hurst ;. chalk-pits on the Hog's Back ; North 

 Mimms ; woods near Watford ; chalk-pits, North Hall (or Northaw ?) 

 Common, Herts ; Tring, meadows between Wiggington and London 

 road ; chalk-pit, Gerard's Cross ; near Albury, Shiere, Chipstead, and 

 about Ranmore Common, olim. 



OPHRYS ARANIFRRA. Chalky pastures, rare, 4-5. More frequent in Kent 

 than in Surrey ; about Coulsdon, Dartford, Northfleet, and Gravesend ; 

 Greenhithe chalk-pits ; Mickleham (?) ; Morant's Court Hill ; hills E. of 

 Merstham ; Buckland Hill ; Norbury Park. 



OPHRYS MUSCIFERA. Chalky banks, more frequent in Surrey, scarce, 57. 

 Coulsdon; bank bordering Farthing Downs;* between Dorking and 

 Ranmore Common, and in the chalk-pits ; about Northfleet and Graves- 



