| Porphyra purpurea | |
|---|---|
 | |
| Porphyra purpurea herbarium sheet | |
Scientific classification  | |
| (unranked): | Archaeplastida |
| Division: | Rhodophyta |
| Class: | Bangiophyceae |
| Order: | Bangiales |
| Family: | Bangiaceae |
| Genus: | Porphyra |
| Species: | P. purpurea |
| Binomial name | |
| Porphyra purpurea (Roth) C. Agardh | |
Porphyra purpurea is a medium-sized marine algae in the division Rhodophyta.
This red algae consists of a single membranous layer of cells forming a blade attached by a disk holdfast. It grows to a length of 20 to 50 cm long. [1] [2] The blade has the texture of a thin polythene sheet. [3]
They are littoral, growing on rock, pebbles, limpets and barnacles. [4]
Recorded from Canada and Europe. [5] Common in Great Britain, Ireland and Isle of Man. [4]
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.
Fucus spiralis is a species of seaweed, a brown alga, living on the littoral shore of the Atlantic coasts of Europe and North America. It has the common names of spiral wrack and flat wrack.
The history of phycology is the history of the scientific study of algae. Human interest in plants as food goes back into the origins of the species, and knowledge of algae can be traced back more than two thousand years. However, only in the last three hundred years has that knowledge evolved into a rapidly developing science.
Alaria is a genus of brown alga (Phaeophyceae) comprising approximately 17 species. Members of the genus are dried and eaten as a food in Western Europe, China, Korea, Japan, and South America. Distribution of the genus is a marker for climate change, as it relates to oceanic temperatures.
Chaetomorpha linum is a species of green algae in the family Cladophoraceae.
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.
Polysiphonia elongella Harvey in W.J. Hooker is a branched species of marine red algae in the genus in the Polysiphonia in the Rhodophyta.
Melobesia membranacea is a small marine alga encrusting on the surface of other algae. In the division of the Rhodophyta.
Ceramium echionotum is a small marine alga in the division Rhodophyta.
Hypoglossum hypoglossoides, known as under tongue weed, is a small red marine alga in the family Delesseriaceae.
Delesseria sanguinea is a red marine seaweed.
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.
Prasiola stipitata is a small green alga.
Osmundea hybrida is a fairly small marine red alga.
Gymnogongrus griffithsiae is a small uncommon seaweed.
Lithophyllum incrustans, also known by its common names coraline crust and paint weed, is a small pinkish species of seaweed.