Scaly tooth  (Sarcodon imbricatus)

Ectomycorrhizal: an association between a fungus and plant roots, from which both species benefit. The fungal threads form a sheath around the root. The plant benefits as root uptake is increased as a result, and the fungus receives nutrients from the plant roots.
Eutrophication: nutrient enrichment of aquatic or terrestrial ecosystems.
Fruit body : in fungi, the fruit body is the visible part of the fungus which bears spores (microscopic particles involved in both dispersal and reproduction).
Photosynthesis: metabolic process characteristic of plants in which carbon dioxide is broken down, using energy from sunlight absorbed by the green pigment chlorophyll. Organic compounds are made and oxygen is given off as a by-product.
Spore: microscopic particles involved in both dispersal and reproduction. They comprise a single or group of unspecialised cells and do not contain an embryo, as do seeds.
Symbiotic relationship: relationship in which two organisms form a close association, the term is now usually used only for associations that benefit both organisms (a mutualism).

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