72 VIOLACEAE 



Top. Bot. 52. Syme, E. B. ii. 10, t. 168. Nyman, 74. Baxter, t. 393. 



Fl. Oxf. 39. 

 Native. Pascual. Dry hilly pastures, roadsides, chalk downs, &c. 



Locally common. P. April-September. 

 First record. Cistus helianthemum, Dr. Noehden, Mavor'sAgr. Berks, 1609. 



1. Isis. Wytham Hill. Ashbury. Idstone. A small-flowered 



form is found with the type at Wytham. Near Faringdon. 

 Near Buscot. 



2. Ock. Cumnor, Boswell. Very common on all the dry banks about 



Blewbury, Lousley in Russell's Cat. Tubney, Walker. S. Hinksey, 

 Laivson in Herb. Oxf. Besilsleigh. Cumnor Hill. King Standing 

 Hill. Lockinge. Letcombe. Cothill. Blewburton Camp. 

 White Horse Hill. Wittenham Clumps. British Village near 

 Faringdon. Valley above the ' Rifle Range ' on Boar's Hill. 

 Cherbury Camp, &c. 



3. Pang. Compton and Hampstead Norris, Lousley, 1. c. Streatley, 



Pamplin. Abundant on the chalk downs of Streatley, Basildon, 

 Pangbourn, Moulsford, Compton, Hsley, &c. Grass slopes under 

 Sulham woods. Near Bottom Stead Farm. Bradfield. Very 

 luxuriant under Ashridge Wood. By Unwell Wood. Lowbury 

 Hill. Englefield, &c. 



4. Kennet. On Gibbet Hill and Walbury Camp. Lambourn 



Downs. Near the Ridgeway. Letcombe Downs. Near Newbury. 

 Inkpen. West Hsley. 



5. Loddon. On the chalk abundant about Marlow, Mill. Frequent 



about Park Place, Stanton. Hurley. Quarry Wood. Wargrave. 

 Culham. Bisham, &c. 



When the leaves are green underneath it is the H. vulgare, var. 

 concolor, Reichb. Fl. Germ. Exc. ii. 714. 



The Rock rose, although a common plant on the Coralline, Oolite, and 

 Chalk soils, is almost wholly absent from the clays and peaty sands. 

 It delights in sunny pastures or grassy downs, and is found with 

 Anthyllis, Poterium Sanguisorba, Bronius eredus, Festuca otina, and Scabiosa 

 Columbaria. 



H. Chamaecistus occurs in all the bordering counties. 



VIOLACEAE, DC, Fl. Fr. iv. 801 (1805). Lindl. Syn. 35 



(1829). 

 VIOIiA, Linn. Gen. 898 (Tournefort, Inst. t. 236). 

 V. palustris, Linn. Sp. PI. 934 (1753). Marsh Violet. 



Top. Bot. 53. Syme, E. B. ii. 13, t. 170. Nyman, 79. Fl. Oxf. 43. 

 Native. Uliginal. Marshes, bogs, alder swamps, wet portions of 



