Ix FLORA OF BERKSHIRE 



P. pusilhmi, Chara fragiJis, var. Iledwigii, and TolypeUa glomerata also occur. 

 By its banks many forms of Carex acuta are found with C. cUsticha, 

 Cere/olimn Anthriscus, Brachyxiodium pinnatunij Juncus ohtusiflorus^ &c. 



Another of its feeders rises near Faringdon, and passes by Shelling- 

 ford to Stanfoid, while another from the same high ground (about 

 400 feet) near Faringdon, passes by Hatford to Stanfoi'd. A third, 

 coming from the neighbourhood of Pusey, which is about 300 feet 

 above the sea, drains the Celtic earthwork called Cherbury Camp, on 

 which are to be found Bromus erectus, Avena puhescens, A. pratensis, 

 Carlina^ Habenaria viricUs, Cerastium arvense. Orchis ustulaia, Asperula 

 cynanchica, and Anemone Pulsatilla, and then falls into the main stream 

 of the Ock near Charney Basset. Other small streams come from the 

 low waters^hed (under 300 feet) of the Coralline Oolite ridge at King- 

 ston Bagpuze. Fyfield, and Tubney. One of these, the Frilford brook, 

 passes through a tract of country which is particularly interesting from 

 the extensive portion of bogland which it contains ; here a large number 

 of uliginal species occur, and with these, as so often happens, is found 

 in close vicinity a rich ericetal vegetation, which has for its chief 

 constituents Trifolium arvense, T. striatum, T. scabrum, Cerastium arvense, 

 Verbascum nigrum, Myosotis collina, M. versicolor, Echium vulgare, Onoporclon 

 Acantldum, and many interesting forms of Rubus, among them thyrsoicleus. 



Another, and in some respects a still more interesting feeder of the 

 Ock, is a small brook with two or three branches, which comes from 

 the watershed, at an elevation of about 300 feet near Besilsleigh, 

 the birthplace of the botanist Berkenhout. The branch which 

 l^asses by Cothill forms a marsh, which is one of the richest and most 

 interesting in the Midland Counties. Among the plants which have 

 been found there are Potamogeton coloratus in considerable quantity, 

 Utricularia major, U. minor, Chara hispicla, C. contraria, C. fragilis, Satnolus 

 ValerancU, Epipactis palustris. Orchis incarnata, and latifolia, Eriophorum 

 latifolium, Pinguicula vulgaris, Drosera rotundifolia, Echinodorus ranunculoides, 

 Parnassia palustris, Oenanthe Lachenalii, Pedicularis pcdustris, Anagallis 

 ienella, Valeriana dioica, Menyanthes trifoliata, Carex dioica, C. pulicaris, 

 C. echinata, C. Hornschuchiana, C. fulva, C. flava, C. paniculata, C. remota, 

 C. Boeninghausiana, C. rostraia, C. panicea, C. disticha, Schoenus nigricans, 

 Molinia varia, Sieglingia decumbens, Phragmites communis in magnificent 

 specimens, Juncus obtusijlorus, while the drier portions of the marsh 

 afford Genista iinctoria, Genista anglica, and Lithospermum officinale. 



Lastly, another tiny brook carries off the water from another portion 

 of country with a rich and varied flora, namely, that which includes 

 the 'fir-topped Hurst' of Cumnor, Boar's Hill, and Foxcombe Hill 

 with its ' signal elm,' and the woodland tract of Bagley. 



The Ock is also reinforced by a stream which issues from the 

 junction of the Chalk and Gault at about 400 feet, near the picturesque 



