Genus Statice as represented at Blakeney Point. /. 273 
Table IV ; comparison with Table I shows that, generally speaking, increase 
in the number of glands corresponds with increase in the number of 
stomata : — 
Table IV. Average Number of Stomata on the Leaf Blade in S. bellidifolia and the Various 
Forms of V. binervosa, per sq. mm. of Area. 
Form. 
Plant . 
S. bellidifolia 
1 Hybrid Broad-leaved binervosa . . . 
S. bmervosa : 
muddy low 
sandy-mud 
culture from seed .... 
-r. c narrow-leaved lateral . . 
Dwarf {experimental 
binervosa zone of a lateral 
(one year in greenhouse) 
crest of a lateral 
(one year in greenhouse) 
Tall S. bmervosa , Main bank plant 
Upper surface of 
Lower surface of 
leaf blade. 
leaf blade . 
73*3 
35*9 
40*1 
35*2 
63*6 
63-6 
56-0 
51-2 
37’3 
35*2 
33*2 
26*3 
36*6 
44*2 
32*5 
35*2 
16*6 
2 3*5 
34*6 
31*8 
The structure and distribution of the mucilage and Mettenian glands 
has already been fully considered (see pp. 231-7). 
The Mettenian are generally sunken slightly below the epidermal level, 
while the mucilage glands are raised slightly above it. In the leaves of the 
culture plant, however, the Mettenian glands are level with the surface. 
In the broad-leaved form the epidermal cells surrounding a gland are some- 
what enlarged, a feature which recalls S. bellidifolia , where they are enormous 
when compared with the remaining epidermal cells. 
The distribution of tannin in the leaf blade is similar in all the forms. 
The layers of cells immediately adjacent to the epidermis, both upper and 
under, are very rich in a substance giving the reactions of tannin (see p. 259), 
and these two layers contain very little starch ; the two layers immediately 
internal to them are very rich in starch and contain practically no tannin. 
Many of the remaining mesophyll cells have tanniferous contents, more 
especially those in the neighbourhood of the vascular bundle of the midrib. 
In the petiole this substance occurs in the subepidermal layer and in 
numerous isolated parenchyma cells. Enormous quantities are present in 
the mud plant. 1 
5. The Inflorescence Axis. 
The distribution of the tissues in the inflorescence axis is shown in 
Text-fig. 22. The pith (/.) is surrounded by a ring of large, closed, 
collateral bundles (yb. 1). In the lower parts of the axis in the pith one or 
more bundles of sclereides may occur, but they usually die out before the 
insertion of the first scale leaf. The number of vascular bundles varies 
greatly ; it depends on the size of the inflorescence and the degree of 
branching ; the number decreases after the emission of each branch. The 
1 For the probable function of the tannin see pp. 253 , 259 - 60 . 
