go Oliver . — On the Structure , Development , 
in question. I hope at some future time to be able to fill 
it up. 
After fertilization . — Passing on now to the next oldest 
stage found, which is given in Fig. 30. The ovule has elon- 
gated much and continues to do so until the ripening of the 
seed, when it entirely fills the loculus (Fig. 35). In Fig. 30 
the fertilized egg-cell has already divided and a long suspensor 
formed (sp.) ; the latter remains attached to one side of the 
embryo-sac very near its upper end, and by its elongation the 
embryonic cell ( emb. ), in which no divisions have yet arisen, 
is carried to a point below the middle of the embryo-sac. 
The contents of the embryo-sac (other than the embryo and 
suspensor) are shaded in the figure. A development of endo- 
sperm has taken place, but is confined to the lower two-thirds 
of the embryo-sac ; in the synergidal region no cell-division 
takes place. 
At the base of the embryo-sac a most unusual appearance is 
seen. The lowest cap-cell (c 3 ), as above described, was found 
to elongate very much ; now it has considerably outstripped 
the embryo-sac in length ; further, by a longitudinal median 
wall it has become divided into symmetrical halves. The 
‘ appendage/ as I shall at present denote this structure, consists 
therefore of two very long, tapering cells, applied side to side 
and ensheathed in the down-growing ovular tissue. The walls 
of this appendage are brightly shining and fairly thick, and 
consist of unaltered cellulose. Its contents are richly proto- 
plasmic, and each of its cells contains near its proximal end a 
large nucleus ( n ). At this time, and in the next following 
stages, the appendage contains great quantities of small 
starch -granules, no doubt transitory. This extraordinary 
structure is, I believe, to be regarded as an absorptive organ. 
By its large surface much food-material is absorbed from the 
tissues outside it (perisperm), which is in turn passed on to the 
embryo-sac ; the embryo-sac from this point increasing in bulk 
at the expense of the outside tissues. So long as this con- 
tinues do we find transitory starch-granules deposited in the 
appendage. In later stages — when its object is fulfilled — the 
