Pollen sac A chamber in which the pollen is formed in the angiosperms and conifers.
Pollen sac A chamber in which the pollen is formed in the angiosperms and conifers.
花粉囊：在被子植物和针叶类中形成花粉的小室。
Pollen sac A chamber in which the pollen is formed in the angiosperms and conifers.
花粉囊：在被子植物和针叶类中形成花粉的小室。