Lycophytes are spore-bearing vascular plants that include club mosses, quillworts, and spike mosses.
They have single, unbranched veins in their leaves that are broadly known as microphylls.
They reproduce asexually by underground stems called rhizomes.
They can either be homosporous or heterosporous in nature. The microspores develop into microgametophytes while megaspores develop into megagametophytes.
They contain both antheridia and archegonia. It contains an independent, haploid structure known as the prothallus.
It is 2-3 mm long and contains both the sex organs - antheridia and archegonia.