Illustrates the processes of pollination and fertilization.
Anatomical Model, Student Flower Model Separates into seven parts.26 number-coded floral structures are explained in detail in the accompanying 4-page Study Guide. Visible near the top of this tube are two sperm nuclei - one of which is destined to unite with the egg to form the embryo - the other will fuse with the polar nuclei to become the endosperm tissue which will nourish the developing embryo. One of these grains has generated a pollen tube which has entered the ovary.