Additional files [RJEE Vol. 3 (4). 2018 – 3]

• Fig. 1. Main biomorphs of dwarf pine (according to: [6]): a – cup-shaped; б – creeping; в – tree-like; г – semi-tree-like
• Fig. 2. Layout of the index plot (IP) and permanent sample plots in the studied stone-birch forests: *1–*4 – permanent sample plots in the stone-birch forests: *1 – dwarf pine pleurocarpous moss lingonberry; *2 – dwarf pine lingonberry mixed herbs sedge; *3 – dwarf pine mixed herbs; *4 – club-moss sedge mixed herbs with undergrowth of dwarf pine and shrubby alder stand (Duschekia fruticosa (Rupr.) Pouzar); 1 – Larix cajanderi; 2 – Betula lanata; 3 – Chosenia arbutifolia (Pall.) A. Skvorts., Populus suaveolens Fisch.; 4 – Pinus pumila; 5 – Duschekia fruticosa; 6 – marshy ecotopes; 7 – meadows; 8 – swampy hollows; 9 – old felling sites, fire-sites
• Fig. 3. In the pessimal environment, dwarf pine completely loses the orthotropic nature of growth, and the plant resembles a herbarium specimen
• Fig. 4 а. Cup-shaped bush of dwarf pine in the thickets of micro-depressions
• Fig. 4 б . The initial form of the creeping ecobiomorph
• Fig. 5. A fragment of the driest part of stone-birch with a mineralized bare spot 20 years after laying a sample plot. In the center there is the saucer-shaped form of dwarf pine
• Fig. 6. General view of stone-birch forest in the hollow of runoff. In the foreground there is a bush of globe-shaped dwarf pine, followed by one of the largest birch groups
• Fig. 7. Bushes of dwarf pine in the thickets with sparse stands begin to lose their cup shape, their bases are increasingly filled with coniferous needle litter
• Fig. 8. Old split at the base of the bush along the line of accreting skeletal axes
• Fig. 9. Saber-shaped branches of dwarf pine originating from the buried trunk create the illusion of youth of the under-tree layer
• Fig. 10. Goblet-shaped variety of cup-shaped ecobiomorph
• Fig. 11. In root parcels, dry saber-shaped dwarf pine branches inclined to the surface stick everywhere
• Fig. 12. Old fire-site on the saddle of the macro-slope. The snags may give an idea of the indigenous dwarf pine communities
• Fig. 13. Cup-shaped bush of cedar dwarf pine on the old stump