A leaf has veinlets parallel to each other. But, the veinlets are not parallel to the midrib. Can the leaf be considered to have a parallel venation?
No. Veins run parallel to one another from the base to the tip of the leaf in parallel venation. Veins are arranged in a net-like pattern on both sides of the midrib in reticulate venation. So it is not parallel venation. It is reticulate venation.
Multicostate parallel venation of leaf is found in