What is the heterospory in pteridophytes?
Answers
Heterospory and Seed Habitat. (Origin of Seeds and Seed Habitat in Vascular Plants from Heterospory) Heterosporyis a condition of the production of more than one type (usually two) of spores in a single plant. ... InPteridophytes, these two spores are called as Microspores and Megaspores.
Pteridophtyes are a phylum of plants. They are the vascular plants (those having xylem and phloem tissues) that reproduce by releasing spores rather than seeds, and they include the highly diverse true ferns and other graceful, primarily forest-dwelling plants. There are about eleven thousand different species of pteridophytes, making them the most diverse land plants after the flowering plants (angiosperms). Pteridophytes may represent the closest living relatives (sister group) to the seed plants. (Seed plants include the angiosperms, the conifers, and a smaller assortment of other plants.)
As in seed plants, the greatest diversity of pteridophytes is found in the tropics, with only about six hundred species adapted for life in temperate climates. Species living today are relics of ancient lineages that once dominated