 Lilium anther with insets showing dividing microspore mother cells and microspore tetrads. |  Lilium ovary with 6 developing ovules. |  Megaspores in developing ovules of Lilium. |
 First division in Lilium embryo sac (megaspore) development. |  Second division in Lilium embryo sac (megaspore) development. |  First 4-nucleate stage in Lilium embryo sac (megaspore) development. |