EVERYDAY SCIENCE

Detailed explanation-1: -Pteridophytes are also called vascular cryptogams. Pteridophytes are types of plants without seeds or flowers. So it also goes by the name of cryptogams. Ferns and horsetails are among them. Since they exhibit vascular tissue, xylem, and phloem, they can actually be regarded as the earliest terrestrial vascular plants.

Detailed explanation-2: -Pteridophytes are vascular plants that reproduce using spores. They do not produce flowers and seeds and hence are also known as cryptogams.

Detailed explanation-3: -Since pteridophytes were the first terrestrial plants just like snakes were the first terrestrial animals, they are sometimes referred to as ‘botanical snakes’.