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Aulacoseira
1
Aulacoseira alpigena
1
Aulacoseira italica
1
Aulacoseiraceae
1
Aulacoseirales
1
Bacillariophyceae
1
Canada
1
Chromista
Coscinodiscaceae
1
Coscinodiscales
1
Cyclotella
Cyclotella distinguenda
1
Lindavia
1
North America
1
Ochrophyta
1
Rocky Mountains
1
Stephanodiscaceae
1
Stephanodiscus
1
Stephanodiscus alpinus
1
Thalassiosirales
1
biogeography
diatoms
ecology
1
floristics
1
taiga
1
tundra
1
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