12 books
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“
Lichens are widespread in many deserts. They have no root system, absorbing water vapour from the atmosphere, and are therefore particularly extensive in the world’s coastal foggy deserts. Lichens are a unique group of life forms that consist of two closely related parts, a fungus and a partner that can produce food from sunlight. This partner is usually either an alga, or occasionally a blue-green bacterium known as ‘cyanobacteria’. Algal cells are protected by surrounding fungus which takes nu
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― Deserts: A Very Short Introduction
― Deserts: A Very Short Introduction
“
Time passes, and as the hot midday sun and cool mountain nights alternately bake and freeze the blackened landscape of Vesuvius, something remarkable happens.
Gradually, the streams of cold lava are colonized by a lichen, stereocaulon vesuvianim. This lichen is so tiny that it is almost invisible to the naked eye, but as it grows, it turns the lava from black to silvery gray. Where the lichen has gone, other plants can follow- first mugwort, valerian, and Mediterranean scrub, but later ilex and
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― The Wedding Officer
― The Wedding Officer
