Explain the nature of androecium in Fabaceae and Lilioceae
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In the family of Fabaceae or Papilionaceae, the androecium is ten and usually diadelphous. It is a condition wherein the stamens are fused by their filaments while the anthers are free. In diadelphous condition, the fusion of filaments produces a group of two.
The androecium of the Liliaceae family consists of Six stamens in two trimerous whorls, with free filaments, The Gynoecium of the Liliaceae family consists of Superior ovary (hypogynous), syncarpous (with fused carpels), with three connate (fused) carpels, and is trilocular. Hence, the correct answer is option
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1) Family Fabaceae/Papilionaceae (pea plant) :
Fabaceae/Papilionaceae is a sub-family of the Leguminoseae family.
Vegetative features :
Habit : Pinnately compound, alternately arranged with leaf tendrils with the pulvinus present at the leaf base along folacious stipules.
Root : Tap root system with root nodules.
Floral features :
Inflorescence : Racemose, generally axial than terminal
Flower : Zygomorphic and bisexual flowers are found.
Calyx : It contains five sepals which are gamosepalous while aestivation is imbricate.
Corolla : It contains five petals (polypetalous) with vexillary aestivation.
Androecium : It consists of ten anthers that are diadelphous with dithecous anthers.
Gynoecium : Monocarpellary superior ovary which is unilocular with marginal placentation.
Fruit : Legume pod with non-endospermic seeds.
Economic importance: Peas are used as vegetables for making various culinary preparations.
(2) Flowers of Solanum nigrum
Vegetative features :
Habit : Erect, herbaceous plant
Leaves : Simple, exstipulate leaves with reticulate venation
Stem : Erect stem with numerous branches.
Floral features :
Inflorescence : Solitary and axillary
Flowers : Actinomorphic, bisexual flowers
Calyx : Calyx is composed of five sepals that are united and persistent. Aestivation is valvate.
Corolla : Corolla consists of five united petals with valvate aestivation.
Androecium : It consists of five epipetalous stamens.
Gynoecium : It consists of bicarpellary syncarpous superior ovary with axile placentation.
Fruits : Berry Seeds: Numerous, endospermous
Economic importance : Used for medicinal purposes.
Fabaceae/Papilionaceae is a sub-family of the Leguminoseae family.
Vegetative features :
Habit : Pinnately compound, alternately arranged with leaf tendrils with the pulvinus present at the leaf base along folacious stipules.
Root : Tap root system with root nodules.
Floral features :
Inflorescence : Racemose, generally axial than terminal
Flower : Zygomorphic and bisexual flowers are found.
Calyx : It contains five sepals which are gamosepalous while aestivation is imbricate.
Corolla : It contains five petals (polypetalous) with vexillary aestivation.
Androecium : It consists of ten anthers that are diadelphous with dithecous anthers.
Gynoecium : Monocarpellary superior ovary which is unilocular with marginal placentation.
Fruit : Legume pod with non-endospermic seeds.
Economic importance: Peas are used as vegetables for making various culinary preparations.
(2) Flowers of Solanum nigrum
Vegetative features :
Habit : Erect, herbaceous plant
Leaves : Simple, exstipulate leaves with reticulate venation
Stem : Erect stem with numerous branches.
Floral features :
Inflorescence : Solitary and axillary
Flowers : Actinomorphic, bisexual flowers
Calyx : Calyx is composed of five sepals that are united and persistent. Aestivation is valvate.
Corolla : Corolla consists of five united petals with valvate aestivation.
Androecium : It consists of five epipetalous stamens.
Gynoecium : It consists of bicarpellary syncarpous superior ovary with axile placentation.
Fruits : Berry Seeds: Numerous, endospermous
Economic importance : Used for medicinal purposes.
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