Phylum: Heterokontophyta

Taxon: Anomoeoneis cf. costata

Site: Roses Lake, Chelan County, WA

Comments: Not observed in 2023-2025 Lake Chelan samples; moderately common in Roses Lake.

Phylum: Heterokontophyta

Taxon: Anomoeoneis cf. costata

Site: Roses Lake, Chelan County, WA

Comments: Not observed in 2023-2025 Lake Chelan samples; moderately common in Roses Lake. Sample preserved in formalin.

Phylum: Heterokontophyta

Taxon: Boreozonacola cf. hustedtii

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

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

Phylum: Heterokontophyta

Taxon: Caloneis

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

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

Phylum: Heterokontophyta

Taxon: Craticula ambigua

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

Comments: Moderately common in Lake Chelan. Sample preserved in formalin.

Phylum: Heterokontophyta

Taxon: Diploneis

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

Comments: Moderately common in Lake Chelan and other freshwater habitats.

Phylum: Heterokontophyta

Taxon: Diploneis

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

Comments: Moderately common in Lake Chelan and other freshwater habitats. Sample preserved in formalin.

Phylum: Heterokontophyta

Taxon: Frustulia

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

Comments: Moderately common in Lake Chelan. Sample preserved in formalin.

Phylum: Heterokontophyta

Taxon: Gyrosigma cf. acuminatum

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

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

Phylum: Heterokontophyta

Taxon: Lacustriella cf. lacustris

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

Comments: Moderately common in Lake Chelan.

Phylum: Heterokontophyta

Taxon: Navicula cf.

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

Comments: Very common in Lake Chelan and a wide variety of freshwater habitats. Diverse genus with many species. Sample preserved in formalin.

Phylum: Heterokontophyta

Taxon: Neidium cf. dialatatum

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

Comments: Moderately common in Lake Chelan.

Phylum: Heterokontophyta

Taxon: Pinnularia

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

Comments: Uncommon in Lake Chelan; present in a wide variety of freshwater habitats.

Phylum: Heterokontophyta

Taxon: Sellaphora

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

Comments: Moderately common in Lake Chelan. Sample preserved in formalin.

Phylum: Heterokontophyta

Taxon: Stauroneis

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

Comments: Moderately common in Lake Chelan; found in a wide variety of freshwater habitats.