leaf gap
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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.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive
Stele with leaf gaps in xylem: 0 = absent; 1 = present.
Stele with leaf gaps in phloem: 0 = absent; 1 = present.
The polycyclic steles are divided into many wedges by the presence of large
leaf gaps. The secondary xylem has scalariform or pitted (biseriate-triseriate) tracheids.
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