Cyanophyta

Cyanophycea

Chrysophyta

Chrysophyceae

Pyrrophyta

Dinophyceae

Prochlorophyta

Euglenophyta

Euglenophyceae

Xanthophyta

Xanthophyceae

Cryptophyta

Cryptophyceae

bacillariophyta

Coscinodiscophycea

Pennatae

Chlorophyta

Chlorophyceae

Phaeophyta

Phaeophyceae

RhodoPhyta

Protoflorideophy-ceae

Florideae

 01  Saccharina japonica 

  Saccharina japonica or kombu (/ˈkɒmbuː/, from Japanese konbu) is a marine species of Phaeophyceae (brown algae), a type of kelp or seaweed, that is extensively cultivated on ropes in the seas of Japan and Korea.[1] It is widely eaten in East Asia.

A commercially important species, Saccharina japonica is known as called konbu (昆布) in Japanese, dasima (다시마) in Korean, and hǎidài (海带) in China.[2] Large harvests are produced by rope cultivation, a simple method of growing seaweeds by attaching them to floating ropes in the ocean.

02 Undaria pinnatifida

  Undaria pinnatifida, is a sea vegetable, or edible seaweed. It has a subtly sweet flavour and is most often served in soups and salads.

Sea-farmers have grown wakame in Japan since the Nara period,[better source needed] The Invasive Species Specialist Group has listed Undaria pinnatifida on its list of 100 worst globally invasive species.

03 Sargassum

  Sargassum is a genus of brown (class Phaeophyceae) macroalgae (seaweed) in the order Fucales. Numerous species are distributed throughout the temperate and tropical oceans of the world, where they generally inhabit shallow water and coral reefs, and the genus is widely known for its planktonic (free-floating) species. While most species within the class Phaeophyceae are predominantly cold water organisms that benefit from nutrients upwelling, genus Sargassum appears to be an exception to this general rule. Any number of the normally benthic species may take on a planktonic, often pelagic existence after being removed from reefs during rough weather; however, two species (S. natans and S. fluitans) have become holopelagic—reproducing vegetatively and never attaching to the seafloor during their lifecycle. The Atlantic Ocean's Sargasso Sea was named after the algae, as it hosts a large amount of sargassum.

04 Macrocystis integrifolia

  MP（Macrocystis Integrifolia (Pyrifera) ） 、LF(LessoniaTrabeculata (Flavicans)) 、 LN(LessoniaNigrescens) with 

05 Ascophyllumnodosum

    Ascophyllum nodosum is a large, common brown alga (Phaeophyceae) in the family Fucaceae, being the only species in the genus Ascophyllum. It is seaweed of the northern Atlantic Ocean, also known as rockweed, Norwegian kelp, knotted kelp, knotted wrack or egg wrack. It is common on the north-western coast of Europe (from Svalbard to Portugal) including east Greenland[1] and the north-eastern coast of North America.

06 Chondrus crispus

    Chondrus crispus—commonly called Irish moss or carrageen moss (Irish carraigín, "little rock")—is a species of red algae which grows abundantly along the rocky parts of the Atlantic coast of Europe and North America. In its fresh condition this protist is soft and cartilaginous, varying in color from a greenish-yellow, through red, to a dark purple or purplish-brown. The principal constituent is a mucilaginous body, made of the polysaccharide carrageenan, which constitutes 55% of its weight. The organism also consists of nearly 10% protein and about 15% mineral matter, and is rich in iodine and sulfur. When softened in water it has a sea-like odour and because of the abundant cell wall polysaccharides it will form a jelly when boiled, containing from 20 to 100 times its weight of water.

07 Porphyra

   Porphyra is a coldwater seaweed that grows in cold, shallow seawater. More specifically, it belongs to red algae phylum of laver species, comprising approximately 70 species.[1] It grows in the intertidal zone, typically between the upper intertidal zone and the splash zone in cold waters of temperate oceans. In East Asia, it is used to produce the sea vegetable products nori (in Japan) and gim (in Korea). There are considered to be 60 to 70 species of Porphyra worldwide[2] and seven in the British Isles.

08 Gelidium amansii

   Gelidium amansii is an economically important species of red algae commonly found and harvested in the shallow coast (3 to 10 meters or 10 to 33 feet of depth below the water) of many east Asian countries including North and South Korea, China, Japan, Singapore, and northeast Taiwan. G. amansii is an important food source in East Asian countries and has been shown to have medicinal effects on dieting. This algae is used to make agar, whose components are the polysaccharide agarose and agaropectin, from the large amount of algin which is located in the algae's cell wall, as well it is sometimes served as part of a salad, puddings, jams, and other culinary dishes in producing regions.

09 Gracilaria

 Gracilaria is a genus of red algae (Rhodophyta) notable for its economic importance as an agarophyte, as well as its use as a food for humans and various species of shellfish. Various species within the genus are cultivated among Asia, South America, Africa and Oceania.

 Gracilaria bursa-pastoris [S.G.Gmelin] Silva and Gracilaria multipartita [Clemente; Harvey] have long been established in southern England and northwestern France, but confusion between Gracilaria gracilis [Stackhouse; Steentoft, L.Irvine & Farnham] and Gracilariopsis longissima [S.G.Gmelin; Steentoft, L.Irvine & Farnham], (as Gracilaria verrucosa [Hudson; Papenfuss] or Gracilaria confervoides [(L.)Greville; Steentoft et al. 1995]), has prevented the recognition of the northern boundaries.

10 Enteromorpha

  Description: Compressed, elongated, hollow fronds with a green colour.

      Habitat: Rock pools and sandy rocks, particularly in places with widely varying salinities such as upper-shore pools (below). Extremely tolderant to widely varying salinities and temperatures. Bubbles of oxygen (from photosynthesis) often apparent in the tubular fronds.

 Distribution: Common through Britain and Ireland, and seemingly world-wide.

11 Ulva 

Ulva (Scottish Gaelic: Ulbha, pronounced [ˈulˠ̪u.ə]) is an island in the Inner Hebrides of Scotland, off the west coast of Mull. It is separated from Mull by a narrow strait, and connected to the neighbouring island of Gometra by a bridge. Much of the island is formed from Cenozoic basalt rocks, which is formed into columns in places.

Ulva has been populated since the Mesolithic and there are various Neolithic remains on the island. The Norse occupation of the island in the Early Historic Period has left few tangible artefacts but did bequeath the island its name, which is probably from Ulvoy, meaning "wolf island". Celtic culture was a major influence during both Pictish and Dalriadan times as well as the post-Norse period when the islands became part of modern Scotland. This long period, when Gaelic became the dominant language, was ended by the 19th-century Clearances. At its height Ulva had a population of over 800, but today this has declined to less than 20.

Numerous well-known individuals have connections with the island including David Livingstone, Samuel Johnson and Walter Scott, who drew inspiration from Ulva for his 1815 poem, The Lord of the Isles. Wildlife is abundant: cetaceans are regularly seen in the surrounding waters and over 500 species of plant have been recorded. Today there is a regular ferry service and tourism is the mainstay of the economy.

12 Ecklonia maxima

 Ecklonia maxima, sea bamboo, is a species of kelp native to the southern oceans. It is most typically found along the southern Atlantic coast of Africa, from the very south of South Africa to northen Namibia. In these areas the species dominates the shallow, temperate water, reaching a depth of up to 8m in the offshore kelp forests offshore.

 The kelp anchors itself by attaching itself to a rock (or other kelp) via it's holdfast. From this root-like structure a single long stipe rises to the surface waters, where a large pneumatocyst keeps a tangle of blades at the surface to aid photosynthesis.

 The species is of economic importance as it is harvested for both an agricultural supplement and as food for farmed abalone.

 13 Laminaria digitata

Laminaria digitata is a large brown alga in the family Laminariaceae, also known by the common name Oarweed. It is found in the sublittoral zone of the northern Atlantic Ocean.

 L. digitata is a tough, leathery, dark brown seaweed that grows to two or three metres. The holdfast which anchors it to the rock is conical and has a number of spreading root-like protrusions called rhizoids. The stipe or stalk is flexible and oval in cross section and may be over 1 inch in diameter and grow to 5 feet in length. The blade is large and shaped like the palm of a hand with a number of more or less regular finger-like segments. This seaweed can be distinguished from the rather similar Laminaria hyperborea by being darker in colour and having a shorter stipe that does not easily snap when bent.

 L digitata occurs in the north west Atlantic from Greenland south to Cape Cod and in the north east Atlantic from northern Russia and Iceland south to France. It is common round the coasts of the British Isles except for much of the east coast of England.

14 Laminaria hyperborea

  Laminaria hyperborea is a species of large brown alga, a kelp in the family Laminariaceae, also known by the common names of tangle and cuvie. It is found in the sublittoral zone of the northern Atlantic Ocean. A variety, Laminaria hyperborea f. cucullata (P.Svensden & J.M.Kain, 1971) is known from more wave sheltered areas in Scandinavia.