Phylum: Heterokontophyta

Taxon: Epithemia

Site: Blue Lake on trail to Dock Butte, Mt. Baker area, Skagit County, WA

Comments: Common in Lake Chelan; common in spring diatom blooms in many freshwater lakes and ponds. Sample preserved in formalin.

Phylum: Heterokontophyta

Taxon: Epithemia

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

Comments: Moderately common in Lake Chelan; some species are epiphytic. Sample preserved in formalin.

Phylum: Heterokontophyta

Taxon: Epithemia

Site: Twenty-five Mile Creek at confluence with Lake Chelan, Chelan County, WA

Comments: Moderately common in Lake Chelan; some species are epiphytic.

Phylum: Heterokontophyta

Taxon: Epithemia gibba

Formerly: Rhopalodia gibba

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

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

Phylum: Heterokontophyta

Taxon: Epithemia gibba

Formerly: Rhopalodia gibba

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

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