288 ALISMACEiE. 



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

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

 mineum onajus fluviatile. In the Thames and Hackney Eiver ; Doody 

 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 Dillenius (i?. Syn. iii. 150) again placed it among the Fotamogetons. 



BUTOMUS, Lwn. 

 697. B. umbellatus, L. Flowering Bush. Water Gladiole. 



J uncus cyperoides floridus paludosus (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, frequent ! ; Blackst. Fasc. 33. 

 II. Bushey Park, 1802; Winch. MSS. Staines Common!, 1841; Herh. 

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

 Moors. 



III. Eoxeth ; Melv. 80. Hounslow Heath. 



IV. Biver Brent near the stone bridge at AViUesden ; Herh. Hardw. Road 



bet. Pinchley 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 ; Smith MSS. Canal by 



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



Banks of Thames, Fulham ; Faulkner, 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: Lobel, 1570 ; also first as a British plant. 



TRIGLOCHIN, Linn. 

 698. T. palustre, L. 



Gramen jimceum spicatum, C. B. P. (Blackst.). 



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



from a Middlesex specimen). 

 Wet places ; rare. P. June — August. 

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



Yewsley and Iver Bridge ! ; Kewb. 

 II. Bushey Park by the ponds, 1867. 



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



Lees. 



