| Description: |
Himanthalia elongata is a common brown seaweed, however it also can go to greenish brown to olive green. It is commonly known as sea thong, thongweed and sea spaghetti and can be found attached to hard substrata on moderately exposed shoresand at the bottom of the shore. H. elongata has a thallus that is at first a small flattened or saucer-shaped disc up to three centimetres wide with a short stalk. In the autumn, long thongs grows from the centre of this, branching dichotomously a number of times. With a fast growth, by the summer when they became mature, they can reach up to three metres. They bear the conceptacles, the reproductive organs, and begin to decay when the gametes have been released into the water. The discs live for two or three years. |
Species:
see species detailed info >
|
Himanthalia elongata (Linnaeus) S.F.Gray |
