Leaf Gap

leaf gap

[′lēf ‚gap] (botany) The place where the vascular bundle of the stem interrupts above a leaf trace as a result of the diversion of vascular tissue from the stem into a leaf, occurring in many vascular plants.

Leaf Gap

(also lacuna), a break in the central cylinder, or stele, of a plant stem where the vascular bundles branch off into the leaf. It is formed over the leaf trace that extends from the stele. Leaf gaps are particularly noticeable in the stems of plants in which the conducting system of internodes forms a continuous cylinder. The larger the leaves, the wider the leaf gap. The leaf gap is particularly large in ferns. If a leaf has several traces, they generally enter the stem separately (trilacunar and multilacunar nodes). Less commonly, the traces come together to form a single leaf gap.

单词	leaf gap
释义	leaf gap leaf gap n (Botany) a region of parenchyma cells in the vascular tissue of flowering plants and some ferns, situated above a leaf trace Leaf Gap leaf gap [′lēf ‚gap] (botany) The place where the vascular bundle of the stem interrupts above a leaf trace as a result of the diversion of vascular tissue from the stem into a leaf, occurring in many vascular plants. Leaf Gap (also lacuna), a break in the central cylinder, or stele, of a plant stem where the vascular bundles branch off into the leaf. It is formed over the leaf trace that extends from the stele. Leaf gaps are particularly noticeable in the stems of plants in which the conducting system of internodes forms a continuous cylinder. The larger the leaves, the wider the leaf gap. The leaf gap is particularly large in ferns. If a leaf has several traces, they generally enter the stem separately (trilacunar and multilacunar nodes). Less commonly, the traces come together to form a single leaf gap. leaf gap leaf gap the region of the vascular cylinder above the LEAF TRACE where PARENCHYMA occurs. Leaf gaps are characteristic of ferns, gymnosperms and flowering plants.
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