Maceration is an infusion or soaking of a substance in water or another liquid either in order to soften it or to draw out the substance's virtues. Research Maceration
Calla is a genus of plants of the family Araceae, order Oronticeae comprising only a few species, the best known being Calla palustris (arum lily, water arum, wild calla). It is a handsome plant with heart-shaped leaves and showy white flowers found in wet places in cool northern temperate and sub-arctic regions of Europe and America. It has a creeping root-stock extremely acrid in taste, but which, when deprived of its causticity by maceration and boiling, is made by the Lapps into bread. The beautiful Richardia ethiopica (Ethiopian lily) was formerly included in this genus, and is still sometimes called Calla ethiopica. Research Calla
 
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Matt and Leela Probert