Examples of lichen

• The vanishing tropical rain forest as an environment for bryophytes and lichens.

• An overview on lichenological investigations gives the background of the history of research on lichens since 1820.

• The symbiotic state enables the lichen thallus to colonize extreme habitats where the separate bionts would not be able to survive.

• Channel-imaging was correlated with contour images to improve recognition of visual damage, which reflects the vitality of the lichen tissue.

• The results presented here emphasize the fact that lichen symbiosis shows an extremely high resistance to the simulated extreme space conditions used in our experiments.

• The ability to map the distribution of lichens is more open to question.

• The whole lichen thallus appears to be vital.

• Maximum diameters of a crustose lichen mean that many small areoles or lobules form a conglomerate of thalli.