Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. There is a branch of science that studies pollen and other similar microscopic residue called palynology –that is from a greek word meaning the study of scattered dust. Different plants all have pollen with different and identifiable characteristics that cover the outer surface. Arranged in geometric patterns, these protrusions, lumps and other features make the pollen more likely to get to its intended target. Wind disseminated pollen grains may have wing-like protrusions that catch the breezes. Hooks or spikes help insect-dependent pollen stick to the hairs on visiting bees. Pine trees rely on wind for pollination (in case you missed the recent “pollen rain” we experienced and their pollen grains look like Mickey mouse – the face being the actual active portion with two concave ears that catch the wind and move that pollen to a receptive female flower.