Both sexual and vegetative reproduction can be found amongst the lichens and, when you look at a lichen with a naked eye or hand lens, you are likely to see some of the structures that act to produce or disperse sexual or vegetative propagules. The aim of this page is simply to describe such structures rather than to deal with the mechanics of propagule production or dispersal but you can find more information about that aspect on the REPRODUCTION & DISPERSAL page. Much of this page will be devoted to the structures involved in sexual reproduction. When it comes to vegetative reproduction the relevant structures are far less obvious. Indeed, sometimes you may wonder whether you're looking at a definite structure or just a modification of thallus morphology and some types of vegetative propagules are released with the development of no structure to help produce and disperse such propagules.