Interrelation on linear growth and on biomass at fruticose lichens

The assessment of linear growth and efficiency of eight cover forming types of lichens in different types of phytocenosis in the north of West Siberia in the conditions of forest-tundra is carried out. Limits of variation of these parameters are defined. The method of calculation the primary production of fruticose types of lichens on the basis of data on a linear growth is offered.