ИСТИНА

After the expansion of the territory of Moscow in 2011–2012. the area of the city increased 2.4 times. The new edition of the Red Data Book of Moscow should include rare spe- cies of lichens growing in the united territory. The new territory differs from the “old” Moscow in terms of climatic and anthropogenic characteristics. It is proposed to include in the list of lichens all the Red Book species from “old” Moscow and rare species from the new territory. Lichens growing in “old” Moscow and in the new territory differ in their occurrence. The category of rarity for lichens is suggested separately for the “old” Moscow and the new territory. In addition, it is suggested to take into account the exclaves of Moscow, which were not previously reflected in the 2nd edition of the Red Book.