<P> In leaves , the vascular bundles are located among the spongy mesophyll . The xylem is oriented toward the adaxial surface of the leaf ( usually the upper side ) , and phloem is oriented toward the abaxial surface of the leaf . This is why aphids are typically found on the underside of the leaves rather than on the top , since the phloem transports sugars manufactured by the plant and they are closer to the lower surface . </P>
<P> In leaves , the vascular bundles are located among the spongy mesophyll . The xylem is oriented toward the adaxial surface of the leaf ( usually the upper side ) , and phloem is oriented toward the abaxial surface of the leaf . This is why aphids are typically found on the underside of the leaves rather than on the top , since the phloem transports sugars manufactured by the plant and they are closer to the lower surface . </P>
where is the mesophyll located in a plant
where is the mesophyll located in a plant
In leaves
In leaves