42 CRUCIFERAE 



t. 49. Sm. E. B. t. 1747. Nasturtium palusfre, DC, Syst. ii. 191- 

 (i82i\ and Index Kew. N. terrestre, K. Br. in Aiton, Hort. Kew. 

 1. c. (1812). 



Top. Bot. 44. Syme, E. B. i. 180, t. 117. Nyman, 36. Fl. Oxf. 26. 

 Native. Paludal. Banks of rivers, ditches, meadows, pond-sides, 



and muddy places. A. May-October. 

 First record. Sisymbrium terrestre, Dr. Noehden, Mavors Agr. Berks, 



1809. 



1. Isis. Wytham. Near Eynsham. 



2. Ock. Hinksey, Boswell Kennington. Marcliam. Abingdon. 



Kadley. Wallingford. 



3. Pang. Streatley, Pamplin. Moulsford. Pangbourn. Tilehurst. 



4. Kennet. Newbury. Benham. Enborne. Greenham. Soutlicote. 



5. Loddon. Sonning, Tufnail. Near Henley, Stanton. Near Wind- 



sor, Bolton King. Wargrave. Coleman's Moor. Hurst. Aston 

 Ferry. Shottesbrooke. Loddon side. Bray. Blackwater. Near 

 the Giis-works, Wellington College, on dryish ground. Near 

 Blackwater Ford. Windsoi*, near the Home Park. 

 This plant has rather a wider range in the county than the pre- 

 ceding species, from which it may be known by its smaller flowers 

 and more turgid pod. Near Abingdon a prostrate form has been 

 found. It occurs in all the bordering counties. 



E. amphibia, Bess. Enum, PI. Volh. 27 (i822\ Great Yellow Cress, 

 Water Charlocke. 

 Smjmbrium amphibium, Linn. Sp. PI. 657 (1753). Nasturtium am- 

 phibium, E. Br. in Aiton, Hort. Kew. 1. c. Rapistrum aquaticum, Ger. 

 Em. 234. Armoracia amphibia, Peterm. Fl. Lips. Excurs. 477. 



Top. Bot. 45. Syme, E. B. i. i8r, t, 128. Nyman, 35. Fl. Oxf. 25. 



Native, Paludal. Banks of rivers, ditches, watery places. Not un- 

 common and widely distributed. P. May- September. 



First record. Rapistrum. There is another sort called Rapistrum 

 aquaticum very common in all our Oxford ditches, MS. in Lyte's 

 Herball, 1660. Nasturtium ampJdbium. Banks of the river (near 

 Marlow\ frequent, Mr. G. G. Mill in Phyt. i. (1843^ 984. 



1. Isis. Thames near Oxford, I>yer. Lechlade. Bablock Hythe. 



Appleton. Faringdon. Wytham meadows. 



2. Ock. Marcham, Walker. Denchworth, Wait. UfiBngton. Wan- 



tage. Abingdon. Eadley. Kennington. 



3. Pang. Pangbourn. Moulsford. Basildon. Reading. 



4. Kennet. Theale. Padworth. Kintbury. 



5. Loddon. River at Marlow, Mill. Sonning, Tufnail. Frequent 



about Henley, Stanton. Blackwater, Penny. Thames at Bisham, 

 Medmenham, &c., Britten. Hurst. Wargrave, Melvill. Twyford. 



