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Describe the Important characteristics of gymnosperms. |
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Answer» Important characteristics of gymnosperms are The gymnosperms are plants in which the ovules are not enclosed by any ovary wall and remain exposed, both before and after fertilisation. Gymnosperms include medium-sized/tall trees and shrubs Roots are generally tapped roots, some genera have fungal association in the form of mycorrhiza (Pinus), in their roots, while in some other (Cycas) N2 fixing cyanobacteria are present. Stems are unbranched (Cycad) or branched {Pinus, Cedrus). Leaves may be simple or compound. In Cycas, the pinnate leaves persist for a few years. Leaves in gymnosperms are well-adapted to withstand extremes of temperature, humidity and wind. In conifers, needle-like leaves reduce surface area. Their thick cuticle and sunken stomata also helps to reduce water loss |
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