LABIATE. 221 



III. By the Cran on Hounslow Heath, and by Hospital Bridge. Twicken- 



ham. Twickenham Park. 



IV. Moist places, Hanipstead ; Irv. MSS. By Brent Eeservoir ! ; Warren. 

 v. Canal, Greenford ; Melv. 61. Canal, Apperton. 



VI. Trent Park, Southgate ; Cole. Lea Canal bet. Edmonton and Tot- 

 tenham ; Cherry. 

 VII. Near Hackney; Lob. El. Ill and Park. Theat. 588. [In the fields 

 going to Chelsea and Kensington ; Park. Theat. 588.] Near Pad- 

 dington Cemetery ! ; Warren. 

 Pirst record: Label, about 1600. 



537. S. arvensis, L. 



Sideritis humilis lato obtuse fol., Ger. em. (Blackst.). 

 Cyb. Br. ii. 264 ; iii.'483. Curt. F. L. f. 4. 



Cornfields and waste ground ; rather rare. A. or B. August — October. 

 I. Cornfields, Harefield ; Blackst. Fasc. 93. Gardens at Pinner, W. M. H. ; 

 Melv. 61. 

 II. West Drayton ! ; Newb. Tangley Park. 



III. "Waste ground near Twickenham Ey. Station. 



IV. Hendon ; Irv. MSS. Field in Bishop's Wood, Hampstead ; abundant. 

 VI. Edmonton. 



First record: Blackstone, 1737. 



BALLOTA, Linn. 



538. B. foetida, Lam. B. nigra, L., var. a (Syme E. B. and L. Cat.). 

 Black Horehomid. 



Marrnbium nigrum, Ger. em. (Blackst.). 

 Cyb. Br. ii. 251. Syme E. B. vii. t. 1065. 



Hedgebanks and waste ground ; very common. P. July — September. 

 In all the districts. 

 VII. Kentish Town. South Kensington. Shepherd's Bush. Chelsea. 

 Old St. Pancras Churchyard. Hackney Wick. 

 First record: Merrett, 1666. A white-flowered state is recorded from 

 nigh Chelsey ; Mirr. MSS., and near Hammersmith, ]VIr. AVoodward ; 

 With. ii. 616. Another state, B. fi. albo galea lutea, often about 

 Fulham; Herb. Pet. cli. fol. 194. 



B. ruderalis, SvenskBot. Syme E.B. vii. 1. 1066. Not yet certainly recorded 

 for Middlesex. Given as a native of the North Thames sub-province 

 in Cyb. Br. Supp. 65. In answer to enquiry, Mr. Watson writes : 

 ' There is a specimen in my herbarium picked by Eev. Jas. Harris bet. 

 Hampton and Knighton which formerly I thought B. rnderalis, but lat- 

 terly only B. ftetida with more pointed calyx-teeth and white flowers : 

 in so far shading off towards (not exactly into) B. riid.' Such a form 

 was also brought from Harefield by Eev. W. W. Newbould. 



