Disseminule is a very fancy word that describes tiny things that can spread and grow into big things. Like how a little seed can grow into a big tree or a small insect egg can hatch into a bug. Disseminules are like the tiniest versions of those things. They can be really small, like a grain of pollen or even smaller. But they have the power to spread and grow, just like the bigger things they come from. So even though they're small, they're important!