POTAMOGETONACEJ]. 297 



I. Ruislip Reservoir, W. M. H.; Melv. 82. Canal north of Harefield ! ; 



Newb. 

 II. Grand Junction Canal, W. Drayton I ; Newb. Staines Moor, 



III. Harrow ; Herb. Harr. 

 V. Cana] at Apperton. 



VII. Serpentine Eiver, Hyde Park!; Huds. i. 62. Ibid. 1795 ; 8m. E. B. 



Lake in Regent's Park ; Eiver Lea, E. P. ; Herb. Mus. Brit. Pad- 



dington Canal ; Irv. M88. Thames near Putney Bridge, 1817 ; 



Herb. G. ^ R. Round pond, Kensington Gardens ; Warren. 



First record: Hudso7i, 1762. Both subspecies are figured by Petiver, 



H. B. Cat. V. figs. 12, 13. The P. zosteraceus {Bab. Man. eds. i., ii.) 



of the • Serpentine, Hyde Park, Dr. J. A. Power,' was a form of fec- 



tinatus. The locality was omitted in subsequent editions, when the 



name was changed to P. flabellatus ; nor is it given in a list, by 



Mr. Babington, of localities for the latter plant in Phyt. iv. 1 1 60. 



720. P. deusus, L. 



Cyb. Br. iii. 9. Syme E. B. ix. t. 1414. 

 Ditches and streams ; rather rare. P. June — August. 

 I. Colne near Iver Bridge ! ; Newb. 

 II. Colne, Staines Moor. Staines Common. Common by Walton Bridge. 

 Bushey Park. 



IV. Hampstead ; Irv. M88. Stanmore. 

 V. Canal at Greenford ; Melv. 82. 



VII. Canal towards Hampstead Road, 1815; Herb. G.<^R. Marsh ditches, 

 Hackney Wick. Isle of Dogs. 



First record : Goodger and Rozea, 1815. 



ZANNICHELLIA, Linn. 



721. Z. palustris, Linn. 



Potamogeito affinis graminifolia aquatica (Pet., Doody). Aponogeton 



aquat. graminifol. stamin. sing. (R. Syn. iii.). 

 Cyb. Br. iii. 23. Syme E. B. ix. t. 1425. 



Ponds and ditches ; rather rare. A. or P. June — August. 



I. Several pools at Pinner, W. M. H, ; Melv. 83. Pond by the church, 



South Mims. 

 II. Ditches, Staines ; Cooper, 115. 

 IV. Pond below the ' Spaniards,' Hampstead. 

 VI. Pond by brick ground on Finchley side of Highgate Archway ; Davies. 



Hadley ! ; Warren. 

 VII. Pond at upper end of Stroud Green ; Boody M88. Small pond on 

 east side of Islington; Pet. Midd. By St. Pancras Church near 

 London; Bill, in E. 8yn. iii. 136. [Tothill fields, J. Sowerby; 

 Smith M88.'\ Carlton Road, Kilburn, 1869!; Warren. Ditches 

 in Isle of Dogs, abundant. 



