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VEGETATION OF BLAKENEY POINT. 
I. The Main Shingle Bank. 
The main shingle bank at Blakeney, which extends for some 
7 i miles in length beyond the point at which it becomes free 
from the mainland, has the usual contour associated with this 
type of formation (see Oliver, The Shingle Beach as a Plant 
Habitat, New Phyt., Vol. XI., 1912, p. 76), and it is to the 
landward face that the flora is almost entirely confined. The 
limits of the shingle bank proper are not always easily defined, 
as for a considerable portion of its length there are sand-dunes 
and salt-marshes abutting upon it. We consequently find at 
these points that the members of one association become 
mingled with those adjacent, and thus render it not altogether 
easy to determine what plants should be included in the one or 
the other. In the following account and in compiling the lists 
it has been thought best to omit those species which were 
plainly the fringe of another formation. On the other hand, it 
is important to emphasise the fact that salt-marsh and dune 
plants do occur on the main bank well away from these 
doubtful zones of transition : these are, of course, included, as 
they have an important bearing either as relicts or as colonists. 
The Principal Species. 
The commonest and certainly the most characteristic plant 
of the formation is undoubtedly Suoeda fruticosa, and as its 
distribution appears to be a marked factor in determining that 
of other species it will be well to consider it first. The proper 
position of Suoeda fruticosa is best seen towards the distal 
extremity and on the relatively stable laterals (these latter will 
be dealt with subsequently in detail) ; in both these positions it 
occupies the extreme edge of the banks, and in general is 
most abundant between tidal limits. 
This plant also occurs, however, in considerable quantity on 
the crest of the main bank, where the bushes form lines parallel 
to its axis. (Fig. 6.) The individuals increase gradually in 
number as we pass from the older proximal to the younger 
distal or free end of the bank, where they again decrease. We 
thus find a maximum number of bushes on the crest towards 
the centre or region of medium age, and minima corresponding 
