Edumarz

Take one flower each of the families Fabaceae and Solanaceae and write their semi-technical description. Also draw their floral diagram after studying them.

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-Priyanti, Subject Matter Expert at Edumarz


Solution: 

Family Fabaceae – Pisum sativum (Garden Pea)

Vegetative features :

Habit : Pinnately compound, alternately arranged with leaf tendrils in the pulvinus present at the leaf base along foliaceous stipules.

Root : Tap root system bearing root nodules.

Inflorescence : Racemose, mostly axial

Flower : Bisexual and zygomorphic

Calyx : It contains five sepals (gamosepalous) while imbricated by aestivation.

Corolla : It contains five petals (polypetalous) having vexillary aestivation.

Androecium : It consists of ten anthers that are diadelphous, containing dithecous anthers.

Gynoecium : Monocarpellary superior unilocular ovary with median placentation.

Fruit : Legume pod having non-endospermic seeds.

Economic importance: Peas are used as for preparing various cuisines.


Family Solanaceae – Solanum nigrum (poisonberry)

Vegetative features :

Habit : Upright and herbaceous plant

Leaves : Simple, exstipulate leaves having reticulate venation

Stem : Erect and extensively branched

Inflorescence : Solitary and axillary

Flowers : Bisexual and actinomorphic

Calyx : Calyx is composed of five fused sepals with valvate aestivation.

Corolla : Corolla is composed of five united petals with valvate aestivation.

Androecium : It contains five epipetalous stamens.

Gynoecium : It consists of bicarpellary, superior syncarpous ovary with axile placentation.

Fruits : Numerous, endospermic berry seeds.

Economic importance : Provides medicinal benefits.

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