| Halidrys siliquosa | |
|---|---|
 | |
| A fresh piece of Halidrys siliquosa lying in a tray, with some other seaweeds | |
Scientific classification  | |
| Domain: | Eukaryota |
| Clade: | Diaphoretickes |
| Clade: | SAR |
| Clade: | Stramenopiles |
| Phylum: | Gyrista |
| Subphylum: | Ochrophytina |
| Class: | Phaeophyceae |
| Order: | Fucales |
| Family: | Sargassaceae |
| Genus: | Halidrys |
| Species: | H. siliquosa |
| Binomial name | |
| Halidrys siliquosa | |
Halidrys siliquosa is a large marine brown algae.
Halidrys siliquosa is a large brown alga growing to a length of 120 centimetres (47 in). The fronds are somewhat flattened, tough and leathery. They and less than 1 cm broad. The branches occur alternately arranged in one plane. Air bladders occur and are oblong and pointed. The plants are attached by a discoid holdfast. [1]
The plants are hermaphroditic, [2] bearing bisexual conceptacles appearing as pods on stalks at the end of branches. [1]
Generally found around Ireland, Great Britain - including Shetland and the Isle of Man. [1] [3]
Low level, low littoral, rock pools. [1]
Palmaria palmata, also called dulse, dillisk or dilsk, red dulse, sea lettuce flakes, or creathnach, is a red alga (Rhodophyta) previously referred to as Rhodymenia palmata. It grows on the northern coasts of the Atlantic and Pacific Oceans. It is a well-known snack food. In Iceland, where it is known as söl, it has been an important source of dietary fiber throughout the centuries.
Alaria esculenta is an edible seaweed, also known as dabberlocks or badderlocks, or winged kelp, and occasionally as Atlantic Wakame. It is a traditional food along the coasts of the far north Atlantic Ocean. It may be eaten fresh or cooked in Greenland, Iceland, Scotland and Ireland. It is the only one of twelve species of Alaria to occur in both Ireland and in Great Britain.
Pelvetia canaliculata, the channelled wrack, is a very common brown alga (Phaeophyceae) found on the rocks of the upper shores of Europe. It is the only species remaining in the monotypic genus Pelvetia. In 1999, the other members of this genus were reclassified as Silvetia due to differences of oogonium structure and of nucleic acid sequences of the rDNA.
Ceramium is a genus of Ceramium algae. It is a large genus with at least 15 species in the British Isles.
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.
Fucus distichus or rockweed is a species of brown alga in the family Fucaceae to be found in the intertidal zones of rocky seashores in the Northern Hemisphere, mostly in rock pools.
Dilsea carnosa, commonly known as the poor man's weather glass or the sea belt, is a species of red algae in the Dumontiaceae family of the order Gigartinales.
Dumontia contorta is a relatively small epiphytic algae of the sea-shore.
Polysiphonia lanosa is a common species of the red algae (Rhodophyta) often to be found growing on Ascophyllum nodosum.
Polysiphonia denudata is a small red alga, Rhodophyta, growing as tufts up to 20 cm long without a main branch axis.
Polysiphonia elongata is a small red marine algae in the Rhodophyta.
Polysiphoides fucoides (Hudson) Greville is a common marine alga in the Division Rhodophyta.
Ceramium botryocarpum is a small red marine alga in the Division Rhodophyta.
Brongniartella byssoides Schmitz is a small red marine alga.
Membranoptera alata is a small red alga in the Rhodophyta.
Phycodrys rubens is a red marine alga of up to 30 cm long.
Phyllophora crispa is a medium-sized fleshy, marine red alga. This alga forms dense mats of up to 15 cm thickness, which influence environmental factors, thus creating habitat for several associated organisms.
Phyllophora pseudoceranoides, the stalked leaf bearer, is a small marine red alga.
Phyllophora sicula, the hand leaf bearer, is a small red marine alga.
Walkeria uva is a species of colonial bryozoan in the order Ctenostomatida. It occurs on either side of the Atlantic Ocean, in the Baltic Sea, in the Mediterranean Sea and in the Indo-Pacific region.
