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Syngenesious  

Filaments free and anther are united. e.g., Sunflower (asteraceae)

Synandrous

Stamens fused all through their length. e.g., Cucurbita 

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Number of carpels are variable

If only one carpel exists within an ovary, it is said to be monocarpous or monocarpellary Ex;  Fabaceae

Number of carpels are variable

There may be more than one carpel, or two carpel called Bicarpellary they may be free and, if so, are said to be apocarpous. Ex- as in lotus and rose

Number of carpels are variable

There may be more than one carpel, or two carpel called bicarpellary they are termed syncarpous when carpels are fused. Ex-  as in mustard and tomato (brassicaceae and solanaceae)

Number of carpels are variable

There may be 3 fused carpel are termed tricarpellary syncarpousEx- lilliaceae

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The compilation of all carpels within the flower is collectively called the Gynoecium.

A pistil is a collective term for the gynoecium and, thus, may contain one or more carpels.

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Ovules Can Be arranged Within an ovary in a Variety of ways

Parietal placentation

Axile placentation

 Basal placentation

Free-central placentation

Marginal placentation

Parietal placentation

Parietal placentation occurs in the brassicaceae family 

Axile placentation(or central-angular)

This type of placentation is seen in solanaceae, rutaceae and liliaceae families

Basal placentation

Basal placentation can be found in the Asteraceae and Poaceae family

Free central placentation

A type of placenta structure in an ovary, in which the ovules cluster freely around a columnlike central placenta which is attached at the base of the ovary.

examples are dianthus and primrose

Marginal placentation

Marginal placentation is a feature of the Fabaceae/Leguminosae family.

Examples of marginal placentation are plants of the legume family (pod plants), like pea and beans.

               

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Style

In the family umbelliferae (apiaceae) the base of the style is swollen and forms a structure called stylopodium

Kind of style 

Terminal style

If the style arises from terminal part of the Ovary, it is called terminal style. e.g., datura, hibiscus and solanum

Lateral style  

If the style arises from one side of the ovary It is called Lateral style. e.g., Mango

Gynobasic style 

If the style arises from the base of the ovary, it is called the gynobasic style.e.g., ocimum, salvia

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Economically important plants

Cereals

Wheat-King of cereal crop

Family: poaceae (gramineae)

Botanical name:triticum aestivum

Cereals

Rice-“Dhan“

Family: poaceae (Gramineae)

Botanical Name: Oryza sativa

Uses

It is used in making alcoholic beverages.

Rice bran served as cattle food.

Paddy straw is used for making hats, ropes and baskets etc.