288 alismacej:. 



in Pet. H. B. Cat. xliii. t. 12.] The subaqueous grass-like leaves were 

 mistaken by Doody for a species of Potamogeton, and called P. gra- 

 minetcm majiis fliiviatile. In the Thames and Hackney River ; Boody 

 MSS. Buddie {MSS. vi.) rightly referred the name to Sagittaria, and 

 Petiver figured the leaves {H. B. Cat. xliii. 9) as the Grass Arrowhead ; 

 but Dilleuius (i?. Syn. iii. 150) again placed it among the Potainogetons. 



BUTOMUS, Linn. 

 (597. B. umbellatus, L. Flowering Rush. Water Gladiole. 



Juncus cyperoides floridus pahulosus (Lob.). Gladiolus palustris Cordi, 



Ger. em. (Blackst.). 

 Cyb. Br. ii. 478 ; iii. 516. Curt. F. L. f. 1 (drawn from a Middlesex 



specimen). 

 Sides of streams, ditches and ponds ; common. P. June — September. 

 I. Harefield, freqiient ! ; Blackst. Faso. 33. 

 II. Bushey Park, 1802 ; Winch. MSS. Staines Common !, 18-11 ; Herb. 

 Young. Canal at W. Drayton ! ; Newb. Stanwell and Staines 

 Moors. 



III. Eoxeth ; Melv. 80. Hounslow Heath. 



IV. Eiver Brent near the stone bridge at WiUesden ; Herb. Hardw. Road 



bet. Finchley and Hendon ! ; Newb. 

 V. Canal near Greenford ; Melv. 80. Twyford!; Newb. In the Brent 



profusely; Lees. 

 VI. New Cut, Edmonton. 

 VII. [By the Tower of London ; Lob. Adv. 44.] Paddington Canal, near 



the 'Mitre,' 1815; [Bayswater Canal in Kensington Gardens, 1817; 



Herb. G. # i?.] Marshes by Blackwall ; Curt. F. L. and Forst. 



Midd. Very common in the Isle of Dogs ; S?m'th MSS. Canal by 



Kensal Green Cemetery, 1862, Britten ; Phyt. N. S. vi. 348, and Cole. 



Banks of Thames, Fulham ; Faidkner, 22. Ken Wood, Hunter ; 



Park Hampst. 30. By Ken Wood ponds, 1866 ; Fox. In the Lea 



at Hackney and ditches at Hackney Wick. 

 First record: Label, 1570 ; also first as a British plant. 



TRIGLOCHIN, Linn. 

 698. T. palustre, L. 



Gramen junceum sjncaimn, C. B. P. (Blackst.). 



Cyb. Br. ii. 478. E. B. 366, reproduced in Syme E. B. ix. t. 1433 (drawn 



from a Middlesex specimen). 

 AA'^et places ; rare. P. June — August. 

 I. Marshy grounds about Harefield, plentifully ; Blackst. Fasc, 38. Bet. 



Yewsley and Iver Bridge ! ; Newb. 

 II. Bushey Park by the ponds, 1867. 



V. Side of canal, Greenford ; Melv. 81. Marshy spots by the Brent ; 



Lees. 



