1. Pollination occurs on the scale at a distance from the nucellus. 2. The pollen tube is very long and gives rise to many small lateral haustorial branches. It combines features of conifers and cycads to a certain extent. 3. Reasons are adduced to show that this is probably an extremely primitive form of tube, having come down from very remote times little changed. 4. The body cell divides in the extra-nucellar part of the tube a month or more before fertilization. The central cells of the archegonium divides very late or perhaps not at all, except in cases of delayed fertilization. 5. The male cells are very large and unusually active, as well as long-lived. 6. Blepharoplast-like bodies are found in the male cytoplasm. 7. The male cells pass through the neck without injuring the cells. 8. The male cell comes into violent contact with the egg and frequently displaces it. 9. The free nuclear divisions of the proembryo are restricted to the male cytoplasm that surrounds the fusion nucleus, which persists a...