Spider lily flower anther. Coloured scanning electron micrograph (SEM) of the surface of a spider lily flower (Hymenocallis sp.) anther. Anthers are part of a plant's male reproductive system. They produce and release the male gametes (sex cells), pollen grains. The pollen grains fertilise ovaries, the female gametes. Magnification: x430 when printed at 10 centimetres tall.