‖Pter′i‐doph″y‐ta (?), n. pl.(Bot.) A class of flowerless plants, embracing ferns, horsetails, club mosses, quillworts, and other like plants. See the Note under Cryptogamia. — Pter″i‐do‐phyte′ (#), n.
☞ This is a modern term, devised to replace the older ones acrogens and vascular Cryptogamia.