362 



19. P. obtusifolillS, Koch. P.gramineus, Sm.not Linn*. 



Grassy Pondweed. 



Bab. Man. 383. Hook. St. Fl. 435. H. & S. 81. Hist. Yarnu 

 Top. Bot. Suff. E. ? 



Herbaceous aquatic perennial ; in streams and ditches. 



June, July. 



3. Fritton Decoy 1 1 ; Beccles : Somerleyton, H b. 8k. : 

 Oulton Broad, E. Sk. : Lound, Paget : St. Olave's Bridge, 

 Trimmer. 



4. Leiston, T.W.G. 

 Earliest record 1834. Paget. 



20. P. mucronatus, Schrad. P. Friesii, Eupr. 



Mucronate Pondweed. 

 Bab. Man. 383,4. Hook. St. Fl. 435. 



Herbaceous aquatic perennial ; in lakes, streams and 

 ditches. July August. 



1. Livermere Lake || : Lakenheath, G. (l.Druce, 1883. 

 3. Kessingland and Benacre || ; Beccles. 

 First notice 1883. G. C. Druce. 



21. P. pusillus, Linn. Petty Pondiveed. 



Bab. Man. 384. Hook. St. Fl. 435. H. & S. 81. Hist. Fram. 

 Top. Bot. SufE. E. and W. Galp. 113. 



Herbaceous aquatic perennial ; in streams and ditches, 

 &c. Frequent in all the districts. June. . 



P. tenuissimus, M. & K. P. gracilis, Bab. 



Hook. St. Fl. 435. Lond. Cat. 1502.b. 



1. Ixworth Thorpe || and Lakenheath. 



3. Beccles ; Kessingland ; Benacre and Covehithe. 



4. In a small pool in Eedgrave Fen || : in a pond 

 between Eedgrave and Wortham. In a pool at Mellis. 



5. Marsh ditches, Bawdsey. 



Earliest record 1798. Eev. G. Crabbe. 



22. P. trich.oid.es, Cham. Hairlike Pondweed^ 

 Bab. Man. 384. Hook. St. Fl. 436. 



Herbaceous aquatic perennial ; in ponds and ditches*. 



July, August. 



1. Tuddenham, E. Sk.,Jide Eev. K. Trimmer : Barton 

 Mere, C.B. 



4. Ditch and pond, Wortham Long Green ||, A.B. 

 Earliest notice 1864. E. Skepper. 



