Also called the small Sporophyl
Ball. Gymnosperm inflorescence, was born in the spring of the new base long branch, which is composed of many scales (or microsporophyll is composed of tightly spirally arranged stamens) in male flowers on the shaft is oblong or oblong, male cones in each of the following scales (back), pollen sac has two or more elongated (i.e. microsporangium). There are a number of pollen mother cells and pollen sacs (i.e. microspore mother cells), after meiosis, the microspore produces a lot of haploid, and then develop into mature pollen grains (i.e. male gametophyte stage). Each pollen grain has two layers, the airbag outer wall to form two hemispherical sides highlighted the (fin); air bag is to help spread structure. When the mature pollen from a large number of cracks, the Yellow winged pollen, wind spread, up to tens to hundreds of kilometers. This is a specialized in wind pollinated plants and to adapt to the environment.