36 cruciferj:. 



Hackney, ' and brought to the Crosse in Cheapsidt by the women of 

 that village, to be sold' ; Ger. 178. 

 First record : Parkinson, 1640. 



B. Cheiranthus, Vill. B. monensis, var. /3 (Bab. Man.). Sinapis Cheir- 

 anthus, Koch (L. Cat.). Syme E. B. i. t. 92. VII. A stray plant at 

 Chelsea in 1852 ; Jrv. H. B. P. 704. 



SINAPIS, Linn. 



54. S. nigra, L. Brassica nigra, Koch (Syme E. B.). Black Mustard. 

 Slnapi sativum secundum, Ger. (Johns.) 



Cyb. Br. i. 162 ; Comp. 104. Syme E. B. i. t. 85. 



Eiver-sides, fields, and waste places ; rather common. A. June — August. 



II. Fields near Queen's Eiver, Hampton. 



III. By the Eailway, Hounslow Heath ; Warren. 



IV. Bet. Whitchurch and Stanmore. 



V. Twyford ! ; Shepherd's Bush ! ; Newb. 



VI. Bet. Tottenham and Edmonton ; Cherry. 



VII. [Banks at back of Old Street ; and in the way to Islington ; Johns. 

 Ger. 245.] On ditch sides in many places about London ; Merrett, 

 114. , Highgate ; Gospel Oak Fields ; Herb. Hardw. Camden Town, 

 1818 ; Bennett {y.s.). Chelsea, 1815 ; Herb. G. 4" R. Upper Clap- 

 ton ; Cherry (v. s.). Near St. Mark's College ; Newb. South Heath, 

 Hampstead. 

 First record: Johnson, 1633. 



55. S, arvensis, Z. Brassica Sinapistrum, ^ois. (Syme). Charlock. 

 Bapistrum arvorum, Ger. em. (Blackst.). 



Cyb. Br. i. 161 ; Comp. 104. Curt. F. L. f. 5. 



Cornfields and cultivated ground ; very common. A. June — September. 



Common in all the districts. 



VII. Marylebone Park, 1823; Herb. G. Sf E. Primrose Hill, 1827; 

 Varenne. Kentish Town ; Herb. Hardvj. I. of Dogs. 



First record: Blackstone, 1737. Mr. Irvine notices a ^var. glabra' at 

 Chelsea ; H. B. B. 703. 



56. * S. alba, L. Brassica alba, Bois. (Syme). White Musta?'d. 

 Sinapi albtim (Johns.). 



Cyb. Br. i. 161 ; lii. 385 ; Comp. 104. Curt. F. L. f. 5. 



Cornfields, but usually stray plants on waste ground and roadsides; 



common. A. July — September. 

 I. Stanmore Heath. 

 II. Stanwell Moor. Tangley Park. Teddington. Near Hampton Court. 

 III. Waste ground about Twickenham; isolated specimens. Harrow; 

 Herb. Harr. 



