Enter Search Terms:
Genus (i.e. Fucus)
Species (i.e. Gardneri)
Common Name (i.e. Rock Weed)
Phylum (i.e. Ochrophyta)
All of the above
Flattened Sea Sac
Halosaccion firmum
Authority:
(Postels & Ruprecht) Kutzing
North Pacific Distribution:
Alaska Peninsula to Prince William Sound, Alaska; Russia
Phylum:
Rhodophyta
Class:
Florideophyceae
Order:
Palmariales
Family:
Palmariaceae
Former Scientific Names:
Dumontia firma
Description: Thallus is reddish purple, with a dozen or more hollow blades arising from the margin of a central linear sac, all tapering to a short stipe. The thallus, attached by a small discoidal holdfast, reaches 8 cm (3 in) tall but is usually shorter. Habitat This annual or biennial species usually grows on rock (including cobble) in the low intertidal to upper subtidal of protected to semi-exposed habitats. Similar taxa: Palmaria and Opuntiella are not hollow; Halosaccion spp. are not compressed.
Click on a thumbnail to view larger version