I. FLOWERING PLANTS. 



AVENA PUBESCENS. Dry pastures in the chalk districts, not unfrequent, 

 6-7. Banstead Downs,* scarce ; meadows by the Thames, Moulsey ; 

 foot of chalk hills W. of Dorking ;* meadows by the Mole, about Esher 

 (from seeds brought by floods from the Downs?) ; also E. of Merstham ;* 

 and E. of Shoreham.* 



Avena strigosa. Cornfields (rare), 6-7. Farnham ; occasionally between 

 the Rye House and Hoddesdon. 



BALLOTA NIGRA. Hedgerows, and waste places, especially near habita- 

 tions (plenty on the hedges about the outskirts of London), 6-10. 



BARBAREA VULGAIUS. Hedges and ditches, frequent, 5-8. By the 

 Thames, both sides of Hammersmith Bridge, Surrey side ;* by the 

 ditch on Barnes Common.* 



BARBAREA ARCUATA ; B. INTERMEDIA ; B. STRICTA. These forms, now 

 considered as distinct species, may be met with in similar situations. 

 Between Hertford and Ware ; Broxbourne Wood ; brooks at Cheshunt ; 

 brook at Totteridge ; Roxeth. 



Barbarea prcecox. Waste places, rare. Purley Downs (?) ; road from 

 Dorking to the Holmwood ; between Betchworth and Wonham Mill ; 

 near Brockham ; banks of the Wey, near Guildford ; Ruislip ; Pinner;* 

 wastes about Thames Ditton; gravelly field near N.E. boundary of 

 Hatfield Park on Hertford road ; Twickenham ; Apperton, near the 

 canal bridge, plenty. 



BARKHAUSIA. See CREPIS FCETIDA and C. TARAXIFOLIA. 



BARTSIA ODONTITES. Fields and roadsides, frequent, 6-8. (Plenty along 

 the banks of the Paddington Canal.) 



BELLIS PERENNIS. Pastures, frequent, 2-10. 



BERBERIS VULGARIS. Woods, hedges, and plantations, 5-6. Hedges 

 about Northfleet, and from Dartford Heath to Greenstreet Green, road- 

 side right ; between Tring stat. and Aldbury ; field by Lea Bridge road ; 

 Lea districts ; Iver. 



BETA MARITIMA. Muddy banks of the Thames, both sides of the river, 

 frequent ; between Plumstead and Erith ;* about Northfleet,* Graves- 

 end,* Rochester, and between Leigh and Southend,* 6-9. 



BETULA ALBA. Woods, frequent, 4-5. Epping Forest ;* Burnham Beeches ;* 

 woods about Leith Hill;* Warley Common;* and on Chislehurst 

 Common.* 



BIDENS CERNUA. Sides of ditches, ponds, and streams, common ; (plentiful 

 about Tottenham and Edmonton in ditches by the Lea), 7-10. 



BIDENS TRIPARTITA. In similar situations, and in marshy places, fre- 

 quent ; (ditches by the Lea, and banks of the Roding, Colne, and on 

 Colney Heath, abundant), 7-9. 



BLYSMUS COMPRESSUS. Boggy pastures near springs, very rare. Shirley 

 Common, olim (?) ; wet meadow near Bagshot Heath (Winch MSS., and 

 N. B. G.) ; bog left of Redhill road, 2 miles from Merstham (?) ; about 

 Ham Pond below Redstone Hill (possibly) ; and bogs, foot of Cockshott 

 Hill ; boggy pasture, now enclosed, opposite Beddington Park gate, 

 Mitcham Common;* in Hatfield Forest, (probably by the large pond 

 in the park). In the rill near Dulwich Wells, olim. 



