It is the first time a synopsis of algae flora of water bodies from valley and forest complexes was made according to the geographical types of the Verkhoyansk Mountains. 598 species represented by 717 infraspecific taxa including typical ones from 165 genera, 96 families and 10 divisions were found. We made a comparison of the flora of the examined water bodies in the Verhoyansk Mountains and found three dominant diatoms in the three geographical types: 229 algae taxa in Central Verkhoyanie, 193 – in East Verkhoyanie and 145 – in West Verkhoyanie. 50 new algae taxa from 5 divisions are first reported for Yakutia. These are Bacillariophyta – 21, Chlorophyta – 11, Chrysophyta – 9, Cyanophyta – 8 and Dinophyta – 1 species.

Keywords: Verkhoyansk Mountains, water bodies, algae flora, algae, geographical types

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