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Rhodophyta · Red Seaweed

Johansenia macmillanii

(Yendo) K.R.Hind & G.W.Saunders
Phylum
Rhodophyta
Class
Florideophyceae
Order
Corallinales
Family
Corallinaceae

Johansenia macmillanii

Macmillan's coral seaweed

Authority
(Yendo) K.R.Hind & G.W.Saunders
Thallus calcareous, articulated, light pink, to 10 cm (4 in) tall from a basal crust. Branching pinnate; axial segments flattened, hexagonal in shape, ~1.5 mm (0.06 in) long and 2 mm (0.8 in) wide, slightly wider on branches.

Habitat

This species is found in the low intertidal to upper subtidal rock on exposed shores.

North Pacific Distribution

Kodiak Archipelago, Alaska to southern California

Former scientific names

Cheilosporum macmillanii, Serraticardia macmillanii

Similar taxa

Bossiella spp., Corallina spp.

References

Last updated December 26, 2010

Photos