This will, I think, help to fertilize the pistillate or nutlet blossoms on many of the trees.
The shape of the nutlet and the character of its coat are very varied.
The nutlet has become hard, rougher and more strongly ribbed.
Utricle bursting irregularly, enclosing an oblong longitudinally ribbed seed (or nutlet).
Fruit drupe-like when fresh, more or less compressed; endocarp (nutlet) crustaceous.