522 
VEGETATION OF BLAKENEY POINT. 
of that which obtains in the zone of greatest abundance, viz., 
the flanks. Also where the relict Statices near the base of a 
lateral have become buried by the advancing shingle of the 
main bank there is even slightly greater luxuriance exhibited. 
In the appended table the heights, in inches, of twenty plants, 
taken at random from the crest and flanks, are given, from 
which it is seen that the average of the former shews an excess 
of about 4| inches over that of the latter. 
Statice binervosa : Heights of Plants :■ — - 
Crest 9‘5 9 11 6 7 10 10'5 9 7 10 Average 
6 9’5 9'5 7 9 10'5 6'5 8 9'5 6'5 8‘5 ins. 
Sides 3'5 3 4'5 475 5'5 375 3 4‘5 3 4’5 
3 3‘5 6 3'5 4 6 3 4 3'75 5 478 „ 
An examination of Plantago Coronopus from the three 
regions shewed the same general relations both as to the size of 
the plants and the relative lengths of their individual leaves. The 
leaves of the plants from the “ Binervosa ” zone were small, 
fleshy, sub-cylindrical, and nearly glabrous, with often little or 
no sign of teeth. On the crest the plants bore leaves which 
were much flatter, with well-developed teeth, and very hairy. 
Where covered by shingle, the leaves were again fleshy and 
glabrous, or nearly so, but the dentation was well developed 
(though not as in crest plants), and the leaves were flat though 
thick. 
P. Coronopus : Length of Leaves. 
Binervosa Zone — Average 
1 7 ’8 '8 1'2 '8 ‘9 1 1*2 '9 ’93 ins. 
Crest — 
2'5 3 2'5 L5 2 1’5 1 1*5 1‘5 1 L8 „ 
Shingle — 
3 3‘5 2‘5 2‘5 3'5 2 1’5 1’5 175 2 2'3 „ 
In the above table typical plants were selected from each 
habitat and ten leaves of each measured. 
The only reasonable explanation of these data appears to be 
that under the rigorous conditions of the sloping flanks, the 
Statice abounds through the absence of its less hardy com- 
petitors, but with the accretion of soil the limiting factor for 
