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Bacillariophyceae
1
Canada
1
Chromista
1
Cymbellales
Didymosphenia
Didymosphenia geminata
1
Gomphonema
Gomphonema affine
1
Gomphonema pygmaeum
1
Gomphonema sarcophagus
1
Gomphonema subclavatum
1
Gomphonemataceae
1
North America
1
Ochrophyta
1
Rocky Mountains
1
biogeography
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diatoms
1
ecology
1
floristics
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taiga
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tundra
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