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What is a Gymnosperm plant?
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Mar 1, 2024 · Gymnosperm, any vascular plant that reproduces by means of an exposed seed, or ovule—unlike angiosperms, or flowering plants, whose seeds are enclosed by mature ovaries, or fruits. The seeds of many gymnosperms (literally ‘naked seeds’) are borne in cones and are not visible until maturity.
The gymnosperms ( / ˈdʒɪmnəˌspɜːrmz, - noʊ -/ ⓘ JIM-nə-spurmz, -noh-; lit. 'revealed seeds') are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes, forming the clade Gymnospermae. The term gymnosperm comes from the composite word in Greek: γυμνόσπερμος ( γυμνός, gymnos ...
May 2, 2018 · Gymnosperms are flowerless plants that produce cones and seeds, such as conifers, cycads, ginkgoes, and gnetophytes. Learn about the four main divisions of gymnosperms, their characteristics, and their distribution in different biomes and climates.
- Regina Bailey
The term gymnosperm (“naked seeds”) represents four extant divisions of vascular plants whose ovules (seeds) are exposed on the surface of cone scales. The cone-bearing gymnosperms are among the largest and oldest living organisms in the world.
Apr 28, 2017 · Gymnosperm Definition. Gymnosperms are a group of plants which produce seeds that are not contained within an ovary or fruit. The seeds are open to the air and are directly fertilized by pollination. “Gymnosperm”, from the Greek, gymnos, “naked” and sperma, “seed”, develop their seeds on the surface of scales and leaves, which often ...
Gymnosperms, meaning “naked seeds,” are a diverse group of seed plants and are paraphyletic. Paraphyletic groups are those in which not all members are descendants of a single common ancestor.
This was a transitional group of plants that superficially resembled conifers (“cone bearers”) because they produced wood from the secondary growth of the vascular tissues; however, they still reproduced like ferns, releasing spores to the environment. In the Mesozoic era (251–65.5 million years ago), gymnosperms dominated the landscape.
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