51 + 
VEGETATION OF BLAKENEY POINT. 
part of the sloping sides of the bank. Its outer margin abuts 
closely upon the zone of Artemisia maritima,- which is here 
taken as the upper limit of the salt-marsh vegetation. (Fig. 10 
on left.) 
The shade of the Sucedas, which here stand in somewhat 
close formation, commonly restricts in marked degree the growth 
of other plants. Obione portnlacoides is, however, common in 
this zone, more especially upon the older banks that separate 
marshes in which it is the dominant species. Aster Tripolitan 
and Glyceria maritima are likewise present, the former usually 
as scattered individuals, but the latter sometimes in consider- 
able frequency. 
A very characteristic plant of this association and entirely 
restricted to it, is Cochlearia anglica, which, however, is rather 
rare and confined to the older laterals. 
Beyond the Stueda zone scattered bushes are still found in 
the succeeding associations up to the crest, but in continually 
decreasing amount. 
(2.) The Festuca rubra Zone. 
The second zone consists typically of an almost pure sward 
of Festuca rubra and is much less clearly defined than the first, 
being of very variable width, occasionally broken, and merging 
below into the zone of Suceda. Between this and the third 
zone, a more or less subsidiary zone can often be distinguished, 
consisting of Triticum pungens (with occasionally T. pungens 
v. aristatum), frequently associated with which is Cochlearia 
danica and more rarely Atriplex littoralis. This last forms 
the upper limit of the drift, and beyond this line the Suceda 
bushes, though they persist up to the crest, are very scattered 
and low in growth. 
(3.) The Statice binervosa Zone (Figs. 10 and 15). 
The third zone is characterised by the presence of Statice 
binervosa in considerable amount, and much less abundantly 
Frankenia Icevis. These two species appear to be normally 
associated with bare shingle in which the interspaces are com- 
pletely filled with sandy mud. A few dwarfed and scattered 
Suceda bushes are usually present in this zone, and also 
