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Apocarpous Gynoecium-1
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We will use the Buttercup (Ranunculus), Magnolia & Lotus (Nelumbo) as Examples of the Apocarpous Gynoecium.
Ranunculus flowers showing the progression of flower development from the bud on the right to a mature flower on the left. The Sepals (Clayx) abscise early in development. Compare this to the picture of real flowers. Note the presence of many free carpels in the Gynoecium & the numerous Stamens in the Androecium. |
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Carpels contain Ovules in their Ovaries.
Ovules contain the Megagametophyte which is called the Embryo Sac in angiosperms.
The Stamens consist of two parts. The Anther & the Filament that supports it.
The Anther produces Pollen which is the Microgametophyte
Long
section through a mature Ranunculus flower.
Note the Ovules which lie in the Ovaries of each Carpel. The Ovules contain the Megagametophyte or Embryo Sac. Also note the Stamens which produce Pollen the Microgametophyte. |
Each Carpel becomes a Fruit.
Ranunculus produces a Folicle which is a dry dehiscent fruit which splits once longitudinally.
The Ovules become Seeds.
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Fruits (Folicles) from Monk's Hood (Aconitum sp.) a member of the Ranunculaceae | |
Diagram of Ranunculus Gynoecium. |
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