Pollen grains of Cycas are known as microspores. The pollen grains are light in weight and easily blown away by wind at 3 celled stage (prothallial cell, generative cell, tube cell). A large pollination drop comes out of micropylar end of ovule by disorganisation of nucellar beak. The pollen grains get stuck to this drop and as it dries the pollens are drawn into the pollination chamber.