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Calothrix Bornet et Flahault
| Order: | Nostocales |
| Family: | Rivulariaceae |
| Ecology: | Upper Anderson Lake, North Cascades along Hwy 20, Whatcom County, WA |
| Order: | Nostocales |
| Family: | Rivulariaceae |
| Ecology: | Upper Anderson Lake, North Cascades along Hwy 20, Whatcom County, WA |