Calliergon cordifolium

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Calliergon cordifolium: Collection with sporophytes from Lake Leo on Chichagof Island





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Worley's Map of Collection Records for Calliergon cordifolium

Ian Worley

Southeastern Alaska Distribution: Previously reported by Cardot and Theriot (1902) from Yakutat Bay and Sitka, and by Cooper (1939) from Cooper's Notch, near Point Gustavus, Glacier Bay. Probably throughout.
Habitat: Wet depressions and swampy areas in forests, by ponds and lakes, in ditches, fens and most other similar wet habitats.
Comments: Sporophytes were not seen in the southeastern Alaska material. Although a bipolar disjunct, it is one of the group that is widespread in the Northern Hemisphere, but is missing in eastern Asia.

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