This single grain of pollen on the sigma of a morning glory flower is demonstrating the first step in the process of creating a seed. The spikes covering the pollen grain will help it attach to a ...
What am I looking at? The blue structure is the stigma (1), the very tip of the pistil of this thale-cress flower. The orange dots are pollen grains (2) that are stuck to the stigma. The pollen grains ...