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Genus (i.e. Fucus)
Species (i.e. Gardneri)
Common Name (i.e. Rock Weed)
Phylum (i.e. Ochrophyta)
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Green Rope
Acrosiphonia coalita
Authority:
(Ruprecht) Scagel, Garbary, Golden et M.W. Hawkes
North Pacific Distribution:
Gulf of Alaska to central California.
Phylum:
Chlorophyta
Class:
Ulvophyceae
Order:
Ulotrichales
Family:
Ulotrichaceae
Former Scientific Names:
Acrosiphonia mertensii, Spongomorpha coalita
Description: The green thallus forms 10-(4-8 in) tall rope-like strands from branched, uniseriate filaments. Branching is lateral, from sides of cells, and cells are longer than broad. The frayed rope appearance is caused by hook-shaped branches that entangle neighboring branches to form the rope-like strands. Habitat:  The species is found on rock in the mid to low intertidal in protected to semi-exposed habitats in spring and early summer. Similar taxa: Acrosiphonia arcta, A. duriuscula.
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