Phylum: Heterokontophyta

Taxon: Amphora

Site: Sunset Marina, Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds.

Phylum: Heterokontophyta

Taxon: Cymbella

Site: Crystal View Estates Marina, Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds; often attached to submerged substrates by long tubes. Sample preserved in formalin and stained with Lugol's iodine.

Phylum: Heterokontophyta

Taxon: Cymbella

Site: Crystal View Bay, Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds; often attached to submerged substrated by long tubes.

Phylum: Heterokontophyta

Taxon: Cymbella

Site: Lowry property, Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds.

Phylum: Heterokontophyta

Taxon: Cymbopleura apiculata

Site: Congdon Bay, Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds.

Phylum: Heterokontophyta

Taxon: Cymbopleura apiculata

Site: Purtteman Creek at confluence with Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds.

Phylum: Heterokontophyta

Taxon: Didymosphenia geminata

Site: Congdon headland, Lake Chelan, Chelan County, WA

Comments: Moderately common in Lake Chelan; may for dense mats, especially in streams and slow-moving rivers.

Phylum: Heterokontophyta

Taxon: Amphora

Site: Chelan River, Chelan County, WA

Comments: Moderately common in Lake Chelan; may form dense mats, especially in streams and slow-moving rivers.

Phylum: Heterokontophyta

Taxon: Encyonema

Site: Purtteman Creek at confluence with Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds; cells often contained inside long attachment tubes. Sample preserved in formalin.

Phylum: Heterokontophyta

Taxon: Encyonema

Site: Purtteman Creek at confluence with Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds; cells often contained inside long attachment tubes.

Phylum: Heterokontophyta

Taxon: Encyonema

Site: Lake Chelan State Park dock, Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds; cells often contained inside long attachment tubes.

Phylum: Heterokontophyta

Taxon: Gomphoneis cf.

Site: Crystal View Estates Marina, Lake Chelan, Chelan County, WA

Comments: Uncommon in Lake Chelan. Sample preserved in formalin.

Phylum: Heterokontophyta

Taxon: Gomphonema

Site: Purtteman Creek at confluence with Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds. Sample preserved in formalin.

Phylum: Heterokontophyta

Taxon: Gomphonema

Site: Crystal View Bay, Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds.

Phylum: Heterokontophyta

Taxon: Gomphonema

Site: Crystal View Bay, Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds.

Phylum: Heterokontophyta

Taxon: Gomphonema acuminatum

Site: Crystal View Estates Marina, Lake Chelan, Chelan County, WA

Comments: Common in Lake Chelan and in many freshwater lakes and ponds.

Phylum: Heterokontophyta

Taxon: Rhiocosphenia curvata

Site: Roses Lake, Chelan County, WA

Comments: Not found in 2023-2025 sample from Lake Chelan; uncommon in Roses Lake.