Ambrosia is a term that is used to describe Maple boards which bare the stains of the Ambrosia Beetle. The fungus is carried in the legs of the beetle, which serve as food for the larva when they hatch. The fungus causes a reaction in the tree leaving a green or blue streak. Previously this lumber was rejected by high-end furniture builders and sold for lower prices. In recent years the market for this lumber has become larger for furniture makers as it is a desirable figure. On some boards, the ambrosia will be accompanied by curl in the grain making for a spectacular looking board when finished properly.