Phylum: Cyanobacteriophyta

Taxon: Pannus cf. planus

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

Comments: Uncommon in Lake Chelan and elsewhere; Usually in plankton samples, where is may form short-lived blooms. Sample preserved in formalin.

Phylum: Cyanobacteriophyta

Taxon: Pannus cf. planus

Site: Little Twin Lake, Okanogan County, WA

Comments: Uncommon in Lake Chelan and elsewhere; usually in plankton samples, where is may form short-lived blooms. Sample preserved in formalin.

Phylum: Cyanobacteriophyta

Taxon: Pannus sp.

Site: Silver Lake, Whatcom County, WA

Comments: Uncommon in Lake Chelan and elsewhere; usually in plankton samples, where is may form short-lived blooms. Sample preserved in formalin.

Phylum: Cyanobacteriophyta

Taxon: Pannus sp.

Site: Silver Lake, Whatcom County, WA

Comments: Uncommon in Lake Chelan and elsewhere; usually in plankton samples, where is may form short-lived blooms. Sample preserved in formalin.