Pteridophytes (Ferns) Overview

This set of flashcards covers foundational concepts of Pteridophytes, particularly focusing on ferns, their life cycle, and key structures.

Pteridophytes

A group of plants adapted to life on land, primarily found in moist, shady environments.

Sporophyte generation

The dominant generation in ferns that produces spores and includes the adult fern plant.

Rhizome

A horizontal, underground stem from which adventitious roots and fronds develop.

Sori

Clusters of sporangia found under the leaves of ferns.

Prothallus

A green, heart-shaped gametophyte stage of the fern life cycle.

Rhizoids

Structures on the ventral surface of the prothallus that anchor it in the soil.

Fertilization in ferns

Dependent on water for the sperm to reach the ovum in the female sex organ.

Zygote

The diploid cell formed after fertilization, which develops into the new fern sporophyte.

Sporangium

A structure in which spores are produced and released.

Gametophyte generation

The less prominent generation of ferns that produces gametes.