28 CRUCIFERJ!. 



This plant is extensively cultivated in the northern and eastern suburbs, 

 in shallow pits of large size, intersected and divided into rectangular 

 portions, by narrow dikes. It is gathered in early morning, and cried 

 about the streets for sale, mostly by children. 



38. M". sylvestre, R. Br. 



Ericca aquatica, Ger. (Pet.). Sisymbrium sylvestre, L. (Mart.). 



Cyb. Br. i. 148 ; iii. 384 ; Comp. 101. Curt. F. L. f. 3 (drawn from a 



London specimen). 

 Wet roadsides and river banks ; rather common. P. June — September, 

 I. Ruislip, Hind ; Melvill, 8. Eastcott. Moss Lane, Pinner. 

 II. Thames side, Teddington; Newton MSB. By the Thames side, 

 generally, from S anbury to Teddington. 



III. River side, Twickenham. 



IV. Stanmore. Brick field, Burgess Hill, Hampstead, 

 V. Chiswick. 



VII. [In a ditch in the road bet. "Whitechapel and Mile End ; Pet. Midd.] 

 [In the ditches about Tothill Fields, Westminster ; Blackst. Spec. 

 20. Very abundant there ; Curt. F. L. and Herb. Forst.'] Hammer- 

 smith ; E. B. 2324. By the Thames at Fulham ; Britten. Bet. 

 Kensington Square and Chelsea, 1820 ; Pa7nplin. Inside of 

 Kensington Garden railings, S.E. corner. South Heath, Hampstead. 

 First record : Fetiver, 1695. 



39. M". palustre, DC. 



Sisymbrium terrestre, Sm. (Curt.). N. terrestre, E. Br. (Melv.). 



Cyb. Br. i. 147; iii. 384; Comp. 101. E. B. 1747 (drawn from a 



Tothill Fields specimen) ; but Curt. F. L. f. 5 is a better figure. 

 Damp ground, waste or cultivated, old walls, &c. ; common. P. June — 



September. 

 I, Near Eastcott ; near Ruislip Common ; Woodready, Pinner ; Melvill, 

 7. Stanmore Heath. South Mims. 

 II. Staines Moor. Feltham Green. 

 III. Headstone ; Melvill, 7. Hoimslow Heath. Whitton. Hatton. 



Twickenham. Isle worth. 

 IV. Kingsbury, 1827-30; Varenne. Harrow Weald; Melvill, 1. North 



Heath, Hampstead. 

 V. Han well, 1845 ; Morris {v. s.). Ealing Common ! ; Newb. Brent- 

 ford. 

 VI. Edmonton. 



VII. [Tothill Fields ; Curt. F. L. Where the Penitentiary now stands ; 

 Pamplin.'] Kensington ; Pamplin. [On Blackfriars Bridge, 

 1815] ; Uxbridge Road, 1816; Herb. G. # R. Eel-brook common, 

 abundant, 1862. Chelsea. Near Buckingham Palace. South 

 Heath, Hampstead. Kentish Town ; Herb. Hardw. [Thames Em- 

 bankment, 1866, and formerly on the river wall of Temple Gardens.] 

 Isle of Dogs ! ; Newb. Hackney Wick. 



