AK OriLINE OF THE FLORA OF SUSSEX. 3 



and flowing through Lurgashall, Lodsworth, past Petworth railway 

 station into the Arun, near Pulborough, thence to the sea by west 

 hank of the Arun. Taken as a whole this is a rich botanical district, 

 and it is still imperfectly explored. The following are some of the 

 more interesting plants restricted to this district in the county. 

 Scirpus triqueter and carinatus are peculiar, in Sussex, to the banks 

 of the Arun, I believe. 



Cardamine impatiens. Poterium muricatum. 



Cochlearia anglica. Rubia peregrina. 



Dianthus prolifer. Inula crithmoides. 



Silene conica. Paris quadrifolia. 



Arenaria tenuifolia. Ornithogalum pyrenaicum. 



Astragalus glycyphyllus. Spartina stricta. 



Geum rivale. 



II. Arun. 



West Rother boundary to the west. Eastern boundary, com- 

 mencing at the Surrey border, through Roughey Street, across St. 

 Leonard's Forest, by Stone Lodge and Colgate to Pease Pottage Gate, 

 thence south to Hand Cross, westward over Plummer's Plain to Monks' 

 Gate, across country to the junction of the railways near Plumtree 

 Cross, on to Bashurst and Ludwick, taking the main road to Billings- 

 hurst, then leaving it again and crossing the railway to the east of the 

 station, onward to Coneyhurst, Broadford Green, Chiltington, Thake- 

 ham, skirting Heath Common, through Washington, Highden, 

 Finden, West Tarring, and Heene to the sea, a little west of Worthing. 

 There is perhaps a greater diversity of soil in this district than any 

 other. It includes the greater part of St. Leonard's Forest, and 

 stretches across the county in its widest part. 



Peculiar Species, 

 Callitriche truncata. Carex canescens. 



Pyrola media. teretiuscula. 



Myosotis sylvatica. Calamagrostis lanceolata. 



IIL Adue. 

 Arun boundary from the sea to Plummer's Plain, thence Ouse 

 boundary to Rottingdean and the sea, a little east of Brighton. The 

 late Wra. Borrer resided at Henfield, in this district, and thoroughly 

 explored it ; a large proportion of his herbarium specimens were col- 

 lected here. 



Peculiar Species, 

 Helleborus viridis. Yicia sylvatica. 



Berberis vulgaris. bithynica. 



Silene noctiflora. Lathyrus Aphaca. 



Tilia parvifolia. Caucalis daucoides. 



Geranium pyrenaicum. Carex elongata. 



IucIhuiu. Hornschuchiana. 



Trifolium steilatum. 



lY. Ouse. 



Cuckmere boundary to Cross-in-Hand, East Rother boundary from 

 there to Castle Hill, near Rotherfield, then turning westward across 



A 2 



