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Nature 421, 591-593 (6 February 2003) | doi:10.1038/421591a

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Ecology: Shady deals with lichens

Peter D. Moore

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In tropical forests, many species of lichen gain a place in the sun by living on the leaves of other plants. It seems they can do so without compromising the photosynthetic capacity of their host.

Life can be challenging for a small plant in a tropical rainforest. Most plants of lesser stature solve the problem of light acquisition by being epiphytic — they use taller plants as support systems to gain a place in the sun.