250 CERATOPHTLLACB^. 



IV. In Hampsteede Wood !, and all the hedges thereabout ! ; Ger. 263 and 

 Johis. Erie. Bet. Finchley and Hendon ! ; Isewh. Mill Hill ; 

 Morris (v.s.). 

 v. Horsington Lane ! ; Melv. 68. 

 VI. Hadley ! ; Warren. Finchley, near the church ; Tucker. Whetstone. 



Edmonton. 

 Vn. [Primrose Hill, 1820 ; Herb. G. # E.] Fields bet Kentish Town 



and Highgate, abundant. Homsey Wood. 

 - First record: Gerarde, 1597 . Wanting in the S.W. parts. 



602. M. annua, L. True Mercury. French Mercury. 



Eight Mercury (Turn.). M. sjoicata seu foemina Diosc. (Budd.). M. 



mas et foemina (Pet.). 

 Cyb. Br. ii. 367. Curt. F. L. f. 5 (drawn from London specimens). 

 Gardens, waste places, and on rubbish ; rather common, A. June — 



October. 

 II. Hampton. Near Strawberry Hill. 

 III. Abundant about Twickenham and Isleworth. 

 V. In great quantity on the railway bank at Kew Bridge Ey. Station. 

 VI. Edmonton. 



Vn. Beginneth now to be knowen in London, and in gentlemennis places 

 not far from London ; Turn. ii. 56. About London, very fre- 

 quent ; Budd. MS8. In most gardens in and about London ; Pet. 

 Midd. and Bot. Land. Near Paddington Church, 1757; RiU, 506. 

 Humerton near Hackney ; Forst. Midd. Upper Clapton ; Cherry 

 {v. s.). Spa Fields Chapel ; Islington ; Camden Town ; Land. Fl. 

 120. Hammersmith, abundant. Gardens at N.E. corner of Green 

 Park. Poplar. Hackney Wick. 



Var. j3. M. amhigita, L. fil. Syme E. B. viii. t. 1270, 

 III. On waste ground near Twickenham Ey. Station. 

 VII. Parson's Green. Site of Exhibition at S. Kensington. 



This is merely the female plant with a few male flowers intermixed. 

 It is worthy of remark that there are a very few male flowers drawn 

 on the female plant in Curtis's figure. 

 First record: Turner, 1562 ; also first as a British plant. 



CEEATOPHYLLACEiE. 



CERATOPHYLITJM, Linn. 



603. C. aquaticum (L. Cat. and Syme E. B.). C. demersum, L. and 

 C. submersum, L. (Bab. Man.). 

 Equisetuin palustre ramosum et aquis immersum, ^c. (Merr.). 

 Cyb. Br. i. 382 ; iii. 430 ; Comp. 174. Syme E. B. viii. tt. 1276, 77. 



