TOPOGRAPHICAL REMARKS. XXI 



the county, both above and below the town of Wisbech, and 

 also on both sides of the river at Foul Anchour, near Tydd. 

 It was formerly a salt-marsh, but is now nearly, or, for the 

 most part, quite dry. The soil is not peat, but a kind of 

 silt deposited by the river in the ancient estuary. The 

 actual bants of the river produce a few marine plants, but 

 the extensive salt-marshes are nearly gone, and with them 

 much of their peculiar vegetation. 



The following list includes the names of the most cha- 

 racteristic plants which remain, together with those of a few 

 which were gathered there formerly, but have not been seen 

 by any botanist for many years. 



Frankenia lsevis. Atriplex littoralis. 



Althsea officinalis. A. Babingtonii. 



Lepigonum marinum. Obione pedunculata (ex- 

 Aster Tripolium. tinct). 



Bidens tripartita. Obione portulaco'ides. 



Glaux maritima. Triglochin maritimum. 



Statice Limonium. Buppia (rostellata?) 



Statice caspia. Sclerochloa maritima. 



Armeria maritima. S. distans. 



Plantago maritima. S. loliacea. 



Sueda maritima. Lepturus incurvatus. 

 Beta maritima "(extinct). Triticum pungens. 



Salicornia herbacea. Hordeum maritimum. 



Rivers. — Little need be said concerning the rivers of this 

 county. "With the exception of the Cam, they are wholly 

 included in the Fens, are often raised high above the neigh- 

 bouring country, and have lofty banks to confine their waters. 

 Within these banks a space is left, on one or both sides of 



