Lichens are a part of the plant Althaloseh sections, which are less developed parts of the Kingdom plant and most primitive. Althaloseh plants include - in addition to the Mosses-sections of algae and fungi, bacteria and viruses. Having noticed all-except Lichens-the greatest share of the care and attention, which was held in each division, including research and countless books which draw many. The book draws the attention of researchers and scholars, Arab attention to this section (Mosses) of the initial sections of plants.