THE STRUCTURE OF THE POPULATION AND VITALITY OF SPECIMENS EVERNIA PRUNASTRI (L.) ON SMALL-LEAVED LIME IN THE FLOOD-LANDS OF THE BOLSHAYA KOKSHAGA
The research was done in the flood-lands of the Bolshaya Kokshaga in 2008. Experimental area was divided into two sections: a more lit up Section 1 facing the river bank and Section 2 - a continuation of the first one but situated in the heart of a forest. 3158 thalli were analyzed. The density of the population (an average number of thalli on a tree) in Section 1 was 154.6 and in Section 2 - 42.75. v
 2 age group makes up the maximal proportion of the Evernia prunastri population age structure. A five-point vitality scale based on the changes of morphological indications of thalli was developed for each ontogenetic state. A decline in vitality was observed under the conditions of excessive lighting in g
 3 and ss states.