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Name derivation:

Classification:

Order Gigartinales; Family Cystocloniaceae.  Currently 12 species are recognized. (online)

Morphology:

Branched filament, uniaxial, bluish or violet green. May be attached with a "holdfast". Cells have many small chloroplasts.

Similar genera:

Habitat:

Found in subtropical to tropical streams. May be epibiontic. One recent find in Lake Huron at 21 m depth.

References:

Wehr, J.D. and R.G. Sheath 2003. Freshwater Algae of North America -- Ecology and Classification. Academic Press (imprint of Elsevier).