Page:The Oak.djvu/147

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INFLORESCENCE AND FLOWERS—FRUIT AND SEED.
129

tion, and the fertilized egg-cell is now termed the oöspore, and at once begins to grow into the embryo.

The Oak (Marshall Ward) Fig 35.jpg

Fig. 35.—Various stages in the development of the ovule: n, nucellus; i, i' integuments; p, point of attachment to placenta; e, embryo-sac; r, vascular cord supplying ovule; m, micropyle; x, young embryo. (Partly after Th. Hartig.)

It would be very interesting to describe at length all the remarkable details of these processes, and their