My investigation took place in a small woodland close to the Heatree Activity Centre which is located on the edge of Dartmoor National Park in Devon.

... Effect of aspect on lichen size. My investigation took place in a small woodland close to the Heatree Activity Centre which is located on the edge of Dartmoor National Park in Devon. Introduction: In the plant kingdom lichens are unique, consisting of two totally unrelated life forms one an alga and the other a fungus, living together in a complex but balanced state of symbiosis. A symbiosis is a life form where both the partners benefit from each other. In the case of the lichen, the fungus delivers water, minerals and gases from the environment to the algae, while the algae, which contains the green pigment chlorophyll, photosynthesises to supply the fungi with sugars and carbohydrates. The algal cells are either green or blue-green, while the fungal threads or hyphae are colourless. The fungal partner forms the body of the plant within which the algal cells are arranged, in many species, in a well

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