tumblelichen: https://en.wikipedia.org/wiki/Vagrant_lichen … potentially extraterrestial lichen: http://www.sciencedirect.com/science/article/pii/S0032063313002055 … chthonic lichen: https://en.wikipedia.org/wiki/Endolithic_lichen …
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If asteroid mining takes off in my time, I may claim a medium sized asteroid and build a lichen garden on it. http://www.esa.int/Our_Activities/Human_Spaceflight/Lichen_survives_in_space …
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