| Scytothamnus | |
|---|---|
 | |
| Fig I: Dictyosiphon fasciculatus = Scytothamnus fasciculatus | |
Scientific classification  | |
| Clade: | SAR |
| Phylum: | Ochrophyta |
| Class: | Phaeophyceae |
| Order: | Scytothamnales |
| Family: | Splachnidiaceae |
| Genus: | Scytothamnus J.D.Hooker & Harvey, 1845 |
| Species | |
See text | |
Scytothamnus is a brown algae genus in the family Splachnidiaceae. [1]
William Henry Harvey, FRS FLS was an Irish botanist and phycologist who specialised in algae.
Sporochnacaeae is the only family in the order Sporochnales in the brown algae. Member of this family are thread-like algae growing by means of an intercalary row of dome shaped cells at the base of the hairs.
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.
Ectocarpales is a very large order in the brown algae. The order includes families with pseudoparenchymatous (Splachnidiaceae) or true parenchymatous (Scytosiphonaceae) tissue. Pseudoparenchymatous refers to a filamentous alga with cells packed very close together to give an appearance of parenchymatous tissue, the latter being composed of cells which can truly divide in three dimensions, unusual among the algae. Filamentous algae are composed of cells that divide along a single plane, allowing only elongation to form filaments of one or more rows of cells. Algae that can divide in two planes can form sheet-like thalli or bodies. Cells that can divide in a third plane potentially allow for the organism to develop a more complex body plan, and diversification of body plans into an erect thallus of some sort and a holdfast for attaching the upright portion to the substrate.
Syringodermataceae is a family of brown algae. It includes two genera, Microzonia and Syringoderma.
Ishigeales is an order of brown algae. It includes two families, Ishigeaceae and Petrodermataceae. The genus Diplura is also included, but not placed to family.
Tilopteridales is an order of brown algae with isomorphic alternation of generations.
Scytothamnales is an order of brown algae.
Discosporangiales is an order of brown algae. It includes two families, Choristocarpaceae and Discosporangiaceae.
Ralfsiales is an order of crustose brown algae containing two families.
Rhodymenia is a genus of red algae, containing the following species:
Himanthalia is a genus of brown algae. It is the only genus in the family Himanthaliaceae in the order Fucales. It includes two species: Himanthalia durvillei and Himanthalia elongata.
Plocamium is a genus of red algae in the family Plocamiaceae. It contains around 40 species and has a cosmopolitan distribution in temperate seas. Plocamium has erect elliptical thalli that grow up to 50 cm (20 in) in length. They are bright red in color with strongly flattened delicately branching fronds that further divide into two to five smaller branchlets.
Laurencia is a genus of red algae that grow in temperate and tropical shore areas, in littoral to sublittoral habitats, at depths up to 65 m (213 ft).
Tetrafucol A is a fucol-type phlorotannin found in the brown algae Ascophyllum nodosum, Analipus japonicus and Scytothamnus australis.
Desmarestia is a genus of brown algae found worldwide. It is also called acid weed, acidweed, oseille de mer, sea sorrel, ウルシグサ, stacheltang, mermaid's hair, landlady's wig, or gruagach. However, 'sea sorrel' can also specifically refer to Desmarestia viridis. Members of this genus can be either annual or perennial. Annual members of this genus store sulfuric acid in intracellular vacuoles. When exposed to air they release the acid, thereby destroying themselves and nearby seaweeds in the process. They are found in shallow intertidal zones.
Ralfsiaceae is a family of brown algae in the order Ralfsiales.
Phyllariaceae is a family of brown algae in the order Tilopteridales.
Scytosiphonaceae is a family of brown algae in the order Ectocarpales.
Acinetosporaceae is a family of brown algae in the order Ectocarpales.
 | This Phaeophyceae (or brown alga) article is a stub. You can help Wikipedia by expanding it. |