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Green Seaweeds | 51

Identifying Pacific Seaweeds

Branched Filaments

Acrosiphonia (green rope) p. 55

Cladophora (green tuft) p. 56

Derbesia (green sea grape) p. 57

Bryopsis (green sea fern) p. 58

Unbranched Filaments

Chaetomorpha Green excelsior

Class Siphonocladophyceae Order Cladophorales Family Cladophoraceae

Number of Species

Chaetomorpha (Greek=bristle hair) is a complex tangle of species that require investigation; currently, there are eight species listed in our area.

Description

Chaetomorpha grows as a single chain of cylindrical to barrel-shaped cells resembling a string of emerald beads under a good hand lens. The filaments may reach 20 cm (8 in) in length but are typically shorter. Plants may be found

Chaetomorpha sp.