Why the notches of a fern leaf or the stamen of a water lily?
Pollen: the powdery substance borne by the stamen of the flower.
Well, then, does every male animal have a stamen and every female an ovary?
But, mamma, I thought that all living beings were obliged to have a stamen or an ovary!
Sometimes the stamen has no filament, and the anther is then said to be sessile.