I. FLOWERING PLANTS. 69 



SONCHUS ARVENSIS. Cornfields and by river-banks ; frequent, 8-9. In 

 almost every cornfield ; (cornfields at Willesden ;* by the rivulet, 

 Wimbledon Common.*) 



SONCHUS OLERACEUS. Both on waste and on cultivated ground, common, 

 6-8. Everywhere in the suburbs. 



SONCHUS ASPER. In similar situations, and as common, 6-8. Everywhere, 

 and with the preceding. 



SONCHUS PALUSTRIS. Ditches by the Thames, formerly, very rare ; now 

 probably extinct. (May be sought for in the neighbourhood of Barking ; 

 Rainham ; Plaistow ; Plumstead.) 



SPARGANIUM RAMOSUM. Ditches and stagnant water, common, 7. (Abun- 

 dant in the Roding,* ditches, &c., by the Lea.*) 



SPABGAKIUM SIMPLEX. Ditches and stagnant water, in a gravelly soil, 

 frequent. 7. In the rivulet in the hollow below Wimbledon Common ;* 

 Paddington Canal, beyond Willesden ;* Thames about Teddington ;* 

 ditches near Waltham Abbey ; Colney Heath ; Totteridge Green. 



SPARGANIUM AFFINE and MINIMUM. Rare. Two localities in Herts; 

 pond near Digwell's Lodge Farm ; and pond S.E. corner of wood at 

 Darman's Green ; uppermost of three ponds between St. George's Hill 

 and the Wey ? olim. 



SPARGANIUM NATANS. See S. AFFINE and MINIMUM. 



SPARTINA STRICTA. Sheppey (mouth of the Medway?), local, abundant, 8. 



SPECULARIA HYBRIDA. Dry and chalky cornfields, not common, 6-9. 

 Cornfields near Dartford, on the road to Greenstreet Green ;* cornfields on 

 the downs about Reigate ;* near Harefield ; Brockham ; about Croham 

 Hurst ; about Verulam, St. Albans ; Purfieet ; Tilbury ; Southend. 



SPERGULA ARVEXSIS. Cornfields, frequent, 6-8. (Plentiful about Wey- 

 bridge ;* and at Ham near Richmond.) 



SPERGULARIA RUBRA. Gravelly and sandy soils, frequent, 6-9. (Hamp- 

 stead Heath ;* Plumstead Common.*) 



SPERGULARIA NEGLECTA. Banks of the Thames below Woolwich, local, 

 68. Plentiful on both sides of the river.* 



SPERGULARIA MARINA. See S. NEGLECTA. 



SPIRAEA ULMARIA. Ditches and riversides, common, 6-8. (Plentiful by 

 the Thames,* Lea, &c.*) 



SPIR^A FILIPENDULA. Chalk downs, frequent, 6-7. Purley Downs;* 

 roadside between Croydon and Sanderstead ;* Coulsdon ;* Mickleham ;* 

 Leatherhead ;* Epsom and Banstead Downs ;* Box Hill ;* Reigate Hill ;* 

 and in 'other places along the chalk range ;* also by the Thames, in- 

 cidentally, from seed brought from a distance by floods (?) ; Morant's 

 Court Hill ; chalk downs about Wrotham ; about Aldbury Nowers 

 Wood and heath S. of Tring (plim, no heath there now). 



SPIRANTHES AUTUMNALIS. Dry hilly pastures, in a chalky or gravelly 

 soil, not common, 8-9. Banstead Downs ; Purley Downs ; downs about 

 Coulsdon ; Reigate Hill ;* Mickleham Downs ; Dartford Heath ; Box 

 Hill ; Betchworth Hill ; sandpits about Woolwich (?) olim ; Epping 

 Forest, near 8th milestone (?) olim ; open pastures about Hanwell ; 

 Warley Common (?); Tunbridge Wells Common, and elsewhere in the 

 neighbourhood ; Bedwell Park, Essendon ; near the old mill, Hoddesclon ; 



