Unformatted text preview: bundles have an anastomosing, or an interwoven pattern in longitudinal section. The parenchyma cells between vascular bundles are just referred to as ground tissue. This is the third vascular bundle pattern common in primary growth of stems. • Most monocot vascular bundles contain two large xylem vessels toward the interior of the bundle, and some smaller vessels between them. The very first vessels formed usually collapse from stretching during growth, leaving an air space. As a result the vascular bundle often takes on the appearance of a "clown face". Phloem is always located toward the epidermis layer, and contains no fibers. A sclerenchyma bundle sheath surrounds each vascular bundle. Monocot stem, xs Monocot vascular bundle...
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- Fall '09
- Plants, Plant anatomy, Plant stem, Vascular bundle, vascular bundles