| Description: |
Caulacanthus is a small reddish-brown alga with long cylindrical stolons and short erect branches up to 3 cm tall. Ramifications with acute apices and behaving small triangular-shaped spines.Each central axial cell cuts off 2 periaxial cells. Carpogonial branches are 3-celled and directed toward the thallus surface. Gonimoblasts develop toward the thallus interior initially, then come to radiate from a large central fusion cell incorporating several cells of the central axial filament of the fertile lateral spine or branchlet.
It lives on rocks and clams in well lighted areas with little inclination at mid-littoral zones in semi-exposed shores. |
Species:
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Caulacanthus ustulatus (Turner) Kütz. |
