272 DIPSACEAE 



Dry Sandford. Cherbury Camp. Cothill. Frilford. Radley. 

 Very abundant all along the chalk escarpment from Uffington 

 and Compton Beauchamp to Moulsford. On the chalk outliers 

 known as the Wittenham Clumps, and by the railway at 

 Didcot. 



3. Pang. Ilsley, &c., Heiveifs Hist. Remarkably common about 



Beedon, W. M. Rogers. Unwell Wood, Lawson, in Herb. Ox/. 

 Very common on all the grassy downs in the district and on the 

 grassy borders of woods. On the exposed downs it is much 

 dwarfed, and is the sub-var. pumila, Coss. et Germ. Fl. Par. 



4. Kennet. Lane leading to North Heath and other places, RusseWs 



Cat. 1839. An abundant plant of the grassy chalk downs on 

 both sides of the Kennet valley, being found on the summits of 

 the White Horse Hill and Gibbet Hill. 



5. Loddon. Sonning, Rudge, 1800. Frequent about Park Place, 



Remenham, &c., Stanton. Plentiful near Bisham and near Quarry 

 Wood, near the Chalk-pit at Wargrave, in the meadows near 

 Hurley. On gravel near Maidenhead and Bray. White-flowered 

 forms have been noticed near Purley and at Letcombe. 



A form with sub-entire leaves was observed at Sulham which is 

 worth further study. 



S. Columbaria occurs in all the bordering counties. 



S. arvensis, Linn. Sp. PI. 99 (1753). Field Scabious. 



Trichera arvensis, Schrad. Cat. Sem. Hort. Gott. (1814). Knautia 

 arvensis, Coult. Dips. 29. 



Top. Bot. 220. Syme, E. B. iv. 252, t. 679. Nyman, 347, Fl. Oxf. 156. 

 Native. Agrestal. Cultivated fields, hedge-banks. Common and 

 generally distributed, but more partial to sandy soil. P. June- 

 August. 

 First record. S. arvensis, Mavor's Agr. Berks, 1809. 



The Field Scabious is too frequent and too widely distributed to 

 need special localities being given. It contrasts beautifully with the 

 yellow corn. 



White-flowered forms have been noticed near Shippon, near Upton, 

 near Twyford, and at Shottesbrooke. 



The form with leaves entire, or nearly so, is the var, integrifolia 

 (Roth, Tent. Fl. Germ. ii. 164, as a species), which has been seen at 

 South Hinksey, at Wantage, near Risely, and near Loddon Bridge. 



A form with more deeply cut leaves than the type has been noticed 

 about Cumnor, probably the var. pinnatisecta (Coss. et Germ. Fl. Par. 

 373) of Knautia arvensis. 



S. arvensis occurs plentifully in all the bordering counties. 



