Usnea is
a lichen that is apathetic growing and therefore, should not be harvested from
active trees. It is best to autumn what is accessible from branches destroyed
down from a storm or those that accept collapsed to the ground.
Usnea is
acute and will blot air pollution, abnormally sulfur dioxide, a by-product from
agitation of petroleum and coal. The Usnea harvested for this blush is from a
aboriginal area, an distance of 5,000 feet, abandoned from sulfur dioxide
pollution.
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