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Seaweed's appearance resembles non-woody terrestrial plants. Its anatomy includes: [10] [11] Thallus: algal body Lamina or blade: flattened structure that is somewhat leaf-like Sorus: spore cluster; pneumatocyst, air bladder: a flotation-assisting organ on the blade; Kelp, float: a flotation-assisting organ between the lamina and stipe
The sporophyte structure of laminaria can grow to 7 metres (23 ft), which is large in comparison to other algae, but still smaller than the giant kelps such as Macrocystis and Nereocystis, which can grow up to 40–50 metres (130–160 ft). On the other hand, the gametophyte structure is no more than a few millimeters in length.
Several kelp laminae. The lamina or blade in macroscopic algae, like seaweed, is a generally flattened structure that typically forms the principal bulk of the thallus. [1] It is often developed into specialised organs such as flotation bladders and reproductive organs.
The elkhorn sea moss varies in size, weight, and age. It is a dark greenish-brown hue and can sometimes be deep purple. The moss is cylindrical in shape throughout the seaweed. Its diameter averages 1.526 mm when dried. [1] Near the base of the seaweed, its average length is from 1 mm to 17 mm and 1 mm to 2 mm in diameter.
Ascophyllum nodosum is a large, common cold water seaweed or brown alga (Phaeophyceae) in the family Fucaceae.Its common names include knotted wrack, egg wrack, feamainn bhuí, rockweed, knotted kelp and Norwegian kelp.
Laminaria hyperborea is a massive, leathery seaweed, up to 360 cm long. [3] The holdfast is large and cone-shaped, with branched rhizoids, looking rather like a bird's foot. The stipe is circular in cross section, rough, thick at the base and tapering upwards. Older stipes are often covered with epiphytic red algae. The laminate blade is deeply ...
Sea Salt & Pacific Kelp Exfoliating Body Wash. The benefits of seaweed and algae can also be seen in body products. “The St. Ives Sea Salt & Pacific Kelp Exfoliating Body Wash is a great plant ...
Laminaria digitata. Laminaria digitata is a tough, leathery, dark brown seaweed that grows to 2 or 3 metres (6 + 1 ⁄ 2 or 10 ft) long. The holdfast which anchors it to the rock is conical and has a number of spreading root-like protrusions called rhizoids.