Question

What is heterospory? Briefly comment on it's significance. Give 2 examples.​

Answer 1

Heterospory is thus considered an important step in evolution as it is a precursor to the seed habit. Heterospory evolved first in pteridophytes such as Selaginella and Salvinia. Heterospory is a phenomenon in which two kinds of spores are borne by the same plant.

Answer 2

Answer:

The phenomenon of producing two different kinds of spores in the same plant is known as heterospory.

Significance of heterospory:

• Heterospory leads to the development of seeds in gymnosperms and angiosperms.

• It is required in the differentiation of male and female gametophytes.

Examples: Salvinia, Selaginella