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Information from: brittanica.com Any woody plant that reproduces by means of a seed (or ovule) in direct contact with the environment, as opposed to an
angiosperm, or flowering plant, whose seeds are enclosed by mature ovaries, or fruits. The four surviving gymnosperm
divisions are Coniferophyta (conifers, the most widespread), Cycadophyta (cycads), Ginkgophyta (ginkgos), and
Gnetophyta. More than half are trees; most of the rest are shrubs. Gymnosperms occur on all continents except Antarctica, and
especially in the temperate latitudes. Those widely found in the Northern Hemisphere are junipers, firs, larches, spruces, and
pines; in the Southern Hemisphere, podocarps (Podocarpus). The wood of gymnosperms is often called softwood to
differentiate it from the hardwood of angiosperms. Many timber and pulp trees are also planted as ornamentals. Gymnosperms
also are a minor source of food; of essential oils used in soaps, air fresheners, disinfectants, pharmaceuticals, cosmetics,
and Gymnosperms were a major component in the vegetation that was compressed over millions of years into coal. Most are evergreen. They produce male and female reproductive cells in separate male and female strobili (see cone). More information on gymnosperms |