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- Gymnosperm | Definition, Description, Plants, Examples, Phylogeny . . .
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
- Plant - Conifers, Cycads, Ginkgoes | Britannica
Plant - Conifers, Cycads, Ginkgoes: Gymnosperms are vascular plants whose ovules (seeds) are exposed on the surface of cone scales; they are represented by four extant divisions of vascular plants that includes conifers, cycads, ginkgophytes, and gnetophytes
- What’s the Difference Between Angiosperms and Gymnosperms?
While angiosperms have an enormous variety of body types and forms, ranging from annual herbs to climbing vines to massive trees, gymnosperms are largely woody trees and shrubs Gnetum is the only gymnosperm genus with climbing vines As vascular plants, both groups contain xylem and phloem
- Plant - Vascular, Photosynthesis, Reproduction | Britannica
Gymnosperms and angiosperms Two types of seed-bearing plants: gymnosperms and angiosperms (Left) The Lawson cypress is an evergreen gymnosperm, or “naked seed” plant
- List of cycads | Families, Genera, Gymnosperms, Britannica | Britannica
Cycads (order Cycadales) are an ancient group of palmlike gymnosperms with about 300 extant species across three families The plants are distinguished by crowns of large pinnately compound leaves and by large cones Several species are grown as ornamentals
- Conifer | Definition, Characteristics, Examples, Types, Classification . . .
The conifers are the most varied gymnosperms The world’s oldest trees are the 5,000-year-old bristlecone pines (Pinus longaeva) of desert mountains in California and Nevada
- Xylem | Definition, Location, Function, Facts | Britannica
Together with phloem (tissue that conducts sugars from the leaves to the rest of the plant), xylem is found in all vascular plants, including the seedless club mosses, ferns, horsetails, as well as all angiosperms (flowering plants) and gymnosperms (plants with seeds unenclosed in an ovary)
- Angiosperm | Definition, Flowering Plant, Reproduction, Examples . . .
Gymnosperm seeds are usually formed in unisexual cones, known as strobili, and the plants lack fruits and flowers Additionally, all but the most ancient angiosperms contain conducting tissues known as vessels, while gymnosperms (with the exception of Gnetum) do not
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