Question

5. Give the diagnostic characters of the following families and mention two plants
belonging to each
i) Asteraceae ii) Fabaceae iii) Solanaceae
6
6. What is a pollen grain or microspore? Describe the formation of microspores within the
microsporangium or anther.
6
7. Mention the different types of fossil plants.
6

Answer 1

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.