But with care the leaves can be spread open, and their shape and venation seen.
Compare with a genuine leaf—the shape, margin, and venation.
venation of leaves—size and arrangement of veins—is important.
The fibro-vascular system in the leaf constitutes the venation.
Another specimen from the same locality was shown to be made up of mosses by the venation of leaves.
In Primula or Pedicularis, where the venation is clearly laminar, the tubular portion is distinctly calycine.
It is not in all cases easy to trace the origin and true nature of the ascidium, as the venation is sometimes obscure.
Remove all or nearly all the scales from a wing and note the arrangement of the veins (venation).
The venation is peculiar, and the disposition of the sori depends mainly on the peculiarities of the venation.
He again alluded to the dreary affair of Vorstius, and told the Envoy that the venation caused by it was incredible.