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Flowers & Fruits-3

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Syncarpous Gynoecium: The word Syncarpous means Fused Carpels. Obviously, a syncarpous gynoecium must have two or more carpels!!!!! These can be fused at their margins creating one Locule or three closed carpels can be fused creating several Locules.

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Cross Section of an Apocarpous Gynoecium with three Carpels
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Cross Section of a Syncarpous Gynoecium with Three Carpels.

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A Syncarpous Gynoecium of three Carpels.

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Cross Section of a Syncarpous Gynoecium with the Carpels fused at their margins.

The figure below shows longitudinal views of two members of the Solanaceae. These share many traits, and are typical Syncarpus flowers. The Gynoecium is composed of several fused carpels (Syncarpous).

The Number of Stigma Lobes opften indicates the number of Carpels in a Syncarpous Gynoecium.

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Passion Flower
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An ornamental Poppy
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Papaya: Look Closely!

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Longitudinal Views of Datura and Tomato (Lycopersicum) Showing important floral structures. Both are members of the Solanaceae and share some common features. Note the Stigma and Style on the Tomato Carpel. Pollen is trapped by the fluid on the Stigma. It germinates and travels through the Style to the Ovules in the Ovary.

The Lily Flower

Lilium is typically used to teach floral morphology and sexual reproduction. Consequently, we will examine it!

Perianth = Tepals = 3 Free Sepals & 3 Free Petals

Androecium = 6 Free Stamens

Gynoecium = 3 Carpels (Syncarpous) -

Superior Ovary= Hypogenous

Clintonia (Liliaceae)

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Cross Section of Lily Flower showing the Sepals, Petals, Androecium (Anthers) and Gynoecium (Carpels)
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Cross Section of the Lily Gynoecium showing that it is composed of 3 fused Carpels and the presence of Ovules.

I am going to make Links to other Pages on Lily Gametogenesis, Fertilization & Embryo Development Plus, at No Extra Charge, Capsella Embryo Development,  below. We will not have time to work through them in detail & I will let you know what important things I want you to remember.

Lily Microsporogenesis

Lily Megasporogenesis (Modified)

Lily Fertilization & Embryo Development

Lily Do it Yourself Life Cycle

Lily Life Cycle Diagram

Onion Embryo Development

Cereal Embryos & Fruits

Capsella Embryo Development

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Lecture Directory