46 MISS M. F. EWART ON 
that these slits lead into an upper and lower chamber respectively 
(fig. 5), of which the lower is much the larger. A longitudinal 
partition, which is coextensive with the upper slit, forms the floor 
of the upper chamber and the roof of the lower one. A trans- 
verse section of the free part of this attached growth thus re- 
sembles the letter }. The upper chamber, which is empty, 
terminates at the point of insertion of the flower, and from this 
point downwards the growth is fused with the ovary of the 
flower (see fig. 5). The lower chamber (fig. 5) contains a flower- 
bud (4) on the side towards the ovary and a scale (s'), which in its 
turn contains a flower-bud (2,) and the rudiment of an axis (a). 
Finally, it should be noted that the apex (e, fig. 5) of the attached 
growth is bifid, a fact which gives support to the view that this 
growth is double in its nature, consisting of two excavated 
structures fused back to back, and opening the one by a slit 
above, the other by one below. 
Interpretation of Parts.—The interpretation of the structures 
enumerated is as follows. It is so natural, that itis hardly liable 
to question. Examining fig. 2, it is seen that the expanded 
flower obviously arises in the axil of the bract b,. Higher up we 
have the bract b, subtending a flower-bud. Between the points 
of insertion of b, and 6, the axis is fused with the ovary of the first 
flower. Above the insertion of 6, the axis—concealed from view 
in the “lower chamber ”—becomes free, and bears (1) a bract ,, 
the morphologically upper surface of which is fused in its proximal 
portion with the ovary of the expanded flower, whilst its distal 
part is similarly fused with the upper sepal of the expanded 
flower. The horizontal bar of the { is thus regarded as repre- 
senting the fused portions of the bract 6, and the upper sepal 
of the expanded first flower. This interpretation of the fused 
structures provides for the representation of the missing sepal, 
which is thus found in its proper place, though necessarily 
obscured. 
Within the lower chamber the presence of certain structures 
has been noted: a flower-bud 8, a bract s', an additional flower- 
bud 6,, and the rudiment of the axis a (fig. 5). These are all 
inserted in their right positions. The axis a is the continuation 
ot the main axis, and we must regard the sheathing structure, 
which forms the lower part of the H, as a bract (4,, fig. 2) borne 
by this axis. The flower-bud 6 is situated in its axil. On the 
opposite side (7. e. away from the expanded deformed flower) is 
