Roots213-page9 - Clinging and climbing roots Aerial roots...

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Roots - 9 Buttress roots are similar to prop roots, except they originate at the base of the stem, rather than further up the stem. They are pretty impressive structures on some tropical tree specimens. Climbing roots (such as ivy roots) are used to attach the plant to its substrate. They are common on epiphytes. Other epiphytes have air roots that absorb moisture from humid air.
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Unformatted text preview: Clinging and climbing roots Aerial roots • The velamen layer roots of orchids are aerial roots, which may be used for gas exchange or for protection. The velamen is a multi-layered modified epidermis, which contains chloroplasts for photosynthesis. Velamen also provides mechanical protection and prevents water loss....
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