Discuss important features, write common floral formula and name three economically important plant species of Ranunculaceae family or
Solanaceae family
Answers
Answer:According to the plant taxonomists, it has been estimated that a total of 2 to 3 million plant species exists on our planet. Among them, around two lakh species are angiosperms (flowering plants), while others include gymnosperms, bryophytes, hydrophytes and other vascular and non-vascular plants. These plants are grouped into different families depending upon their characteristics.
Explanation:Solanaceae family is also known as the potato family. Around 2000 species of dicotyledonous plants belong to this family. Its important characteristics are mentioned below.
solanaceae family
Characteristics of Solanaceae Family
Following are the characteristic features of the Solanaceae family:
Vegetative Characters
Root System: Taproot system.
Stem: Erect or climber; Solanaceae includes herbs, shrubs, small trees, and climbers.
Leaves: Alternate, simple or pinnately compound (rarely); exstipulate; reticulate venation.
Floral characters
Inflorescence: Racemose- terminal or axillary raceme; Cymose- solitary in Solanum.
Flower: Complete, bisexual, actinomorphic, hypogynous.
Calyx: Five sepals, gamosepalous; valvate aestivation.
Corolla: Five petals, gamopetalous, valvate aestivation.
Androecium: Five stamens, epipetalous; anthers basifixed.
Gynoecium: Syncarpous, bicarpellary, bilocular, superior ovary, axile placentation.
Fruit: Berry/ capsule.
Seed: Numerous, endospermous