360 



4. P. rufescens, Schrad. Ruddy Pondweed*. 



Bab. Man. 380. Hook. St. Fl. 431,2. Galp. 112. 



Herbaceous aquatic perennial ; in rivers and streams. 



July. 



1. In the Upper Ouse at Bardwell, Ixworth Thorpe 

 and Sapiston || ; in ditches at Santon Downham. 



A remarkable form, with leaves approaching those of 

 P. plantagineus, was found in 1882 at Eiddles worth, Norfolk;, 

 and in 1883 at Knettishall, Suffolk, the localities within 

 a mile of each other, and both within a few yards of the 

 Little Ouse ||. 



3. Ditches at Beccles : in the Aide, Sweffling, E.N.B. 



4. In the Waveney, near Scole, D. Turner. 

 Earliest record 1804. Dawson Turner. 



8. P. lieteropliyllus, Schreb. Various-leaved Pondweed. 



Bab. Man. 381. Hook. St. Fl. 432. H. & S. 81. Top. Bot. 

 Suff. W. 



Herbaceous aquatic perennial ; in ponds and ditches. 



June, July. 



1. Bombay Fen, Mildenhall, Sir C.J.F.B. : Laken- 

 heath, H. & S. 



3. Bungay, Sk. ms. 



4. In the Waveney, near Diss ? Woodward. 

 Earliest record 1850, Sir C. J. F. Bunbury ; or 1812 ? 



Woodward. 



11. P. llicens, Linn. Shining Pondweed., 



Bab. Man. 382. Hook. St. Fl. 432,3. H. & S. 81. Hist. Yarm. 

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



Herbaceous aquatic perennial ; in rivers. June. 



1. In Little Ouse at Knettishall, and at Thetford War- 

 ren |J : in the Upper Ouse at Bardwell ; Ixworth Thorpe ; 

 Sapiston and Honington : in the Lark at West Stow ; Bar- 

 ton Mills and Mildenhall; in Barton Mere and Ampton 

 Lake. 



2. In the Stour at Nayland. 



3. In the Waveney at Bungay and Beccles : Somer- 

 leyton, Hb. 8k. 



4. Oakley, Collins. 



P. acuminatus, Schum. 



Bab. Man. 382. Hook. St. Fl. 433. 



1. In the Upper Ouse at Honington and Sapiston ||, 



