Pollen Vs. Seed Cones | Hunker
Pollen Vs. Seed Cones. Coniferous trees feature two types of cones: the pollen cone and the seed cone. Some conifers have both cone types on the same tree, making it possible for the tree to pollinate itself. Cross pollination occurs when one tree produces only seed cones and therefore must be fertilized by pollen drifting to...