Iviii FLORA OF BERKSHIRE 



viridis and Buxus as naturalized plants. Cerato2}hyUum , Butomtis, Typha 

 angustifoUa, Chara Jiispida, with some others, also occur. Pusey Woods 

 have Echivm vulgare, Adoxa, and a growth so profuse as almost to cover 

 the ground for several acres of Impatiens varvi/lora, pi'obably introduced 

 with pheasants' food ; the bench mark is 258 feet. 



The road to Faringdon, which forms the southern boundary of the 

 Isis district, leaves Oxfordshire at Botley, where the height above sea 

 level is less than 200 feet, and shortly after ascends the stiff slope of 

 Cumnor Hill, which is 411 feet above the sea ; from this point some ex- 

 tensive views may be obtained, embi-acing a large portion of the valley 

 of the Upper Thames, the larch plantations which border the Chipping 

 Norton road near Sarsden, the woods of Blenheim, the grounds of 

 Eynsham and Combe, the spire of Leafield, and the tower of Charlbury. 

 The roadside on this Oolitic soil affords Trifolium medium, which appears 

 at about the same altitude on the Abingdon Road on similar ground. 

 Astragalus ghjcyphyUus, Calamintha arveiisis, C. montana {menthaefolia , 

 Cnicus eriophorus, Carduus nutans, Cerastium arrense, Braclnjpodimnpinnatum, 

 Bromus erectus., Avena puhescens, &c., are also found. The road at 

 Appleton sinks to 329 feet and again rises to 359 feet at Buckland, 

 reaches its highest point in Berkshire, 448 feet, immediately below 

 the pine-crowned Faringdon Clump, and again dips sharply to the 

 Market Place of Faringdon, which is 332 feet above the sea. 



Tubney yields Verbascum nigrum and V. Thapsus, Rosa tomentosa, R. 

 glauca, Sedum Telephium, Rubus dumnoniensis, R. diversi/oJiuSj R. pyramidalis, 

 &c,, Lathyrus syhestris, and Polygonum- dinnetorum, the latter festooning 

 the hedges in the greatest profusion over a considerable distance. At 

 Kingston Bagpuze a plantation affords a rich growth of Lilium Marfagon. 



2. The Ock. This district, which is of considerable size, consists 

 essentially of the Vale of the White Horse ; it also includes the north 

 side of the Chalk escarpment, and the whole of the Boar's Hill range. 

 It has for its boundaries on the west and north the district of the Isis 

 or Upper Thames, which has just been described ; on the north-east 

 the River Thames,, which is the county boundary of Oxfordshire and 

 Berkshire from Oxford to Mongewell ; on the south from Mongewell 

 a line, which like the southern boundaiy of the Isis district, is not 

 a purely natural one, and is also somewhat complex in character. 

 After careful consideration the following scheme has been adopted in 

 preference to any other. According to this determination the southern 

 boundary which separates the Ock district from the third district, the 

 Pang, and the fourth district,, the Kennet, is as follows. From 

 Monge\vell-on-Thames, 160 feet above sea level, the line follows the 

 road leading to the old station of Moulsford through Halfpenny Lane 

 to King Standing Hill, 400 feet above sea level ; thence it follows the 

 road leading to East Ilsley as far as the Newbury Railway, which 



