Additional files [RJEE Vol. 3 (2). 2018 – 5]

• Fig. 1. Life forms in the Salix genus (based on the materials of T. G. Derviz-Sokolova (1982), T. G. Polozova (1990), I. A. Getmanets (2011) and O. I. Nedoseko (2014))
• Fig. 2. A specimen S. cinerea of a life form of semi-aquatic long-oxyrhizome procumbent shrub located in a young generative ontogenetic state
• Fig. 3. Scheme of ontomorphogenesis of a life form of the semi-aquatic long-oxyrhizome gray willow (the arrows show the growth directions of the main skeletal axes, the crosses show the dead trailings)
• Fig. 4. Underwater trailings of S. cinerea life form of semi-aquatic long-oxyrhizome procumbent shrub
• Fig. 5. Basic skeletal axes of gray willow with bundles of accessory roots located near the water surface
• Fig. 6. Specimen of gray willow of a life form of semi-aquatic long-oxyrhizome procumbent shrub in the average age generative state
• Fig. 7. Additional roots located on skeletal axes of gray willow in the average age generative state
• Fig. 8. Section of xylorhizomes of gray willow crawling along the bottom of the pond and rooted with the help of additional roots