TOPOGRAPHY OF BLAKENEY POINT. 17 



future development is uncertain. Should its mouth be effectually 

 cut off from the sea by the throwing up of an apposition bank, 

 it would either remain a low indefinitely, or, if the outer 

 embryo dunes did not develop too rapidly and so cut off 

 supplies of sand, it might become dotted over with Psamma 

 dunes. On the other hand, should it remain tidal there is 

 the possibility that it may develop a salt marsh not, in all 

 probability, a muddy marsh like the Pelvetia Marsh to its 

 south, but on present conditions a salt marsh of the sandy 

 order. 



PART II. VEGETATION. 

 BY E. J. SALISBURY, D.Sc., F.L.S. 



(Lecturer in Botany, East London College, University of 

 London.) 



The following preliminary account of the Flora of Blakeney 

 Point and Shingle Bank is the result of work carried out 

 during the past three years as a member of Professor Oliver's 

 ecological party. The author is deeply indebted to Professor 

 Oliver, not only for valuable advice and criticism on many 

 points, but also indirectly to his stimulating influence through 

 the whole co-operative effort of which the present paper is but 

 a single outcome. 



For the investigation of the area in question the work was 

 divided up into separate parts, each being allotted to a different 

 section, and it is to the other members of the " Floristic 

 Section " that the writer's thanks are due for their assistance 

 in the field. 



For an account of the topography of the district dealt with 

 in the following communication the reader is referred to the 

 preceding section of this paper. 

 VOL. IX. D 



