Passion flower (Passiflora caerulea) pollen grain Science Image

Ref: 80200187a



Passion flower pollen. Coloured scanning electron micrograph (SEM) of a passion flower (Passiflora caerulea) pollen grain. Pollen grains are the male gametes (sex cells) of a plant. Magnification: x1440 when printed 10 centimetres wide.