Overview
Taxonomy
The Class Phaeophyceae is further organized into finer groupings including:
- Order (15): Ascoseirales · Chordariales · Cutleriales · Desmarestiales · Dictyosiphonales · Dictyotales · Durvillaeales · Ectocarpales · Fucales · Laminariales · Scytosiphonales · Scytothamnales · Sphacelariales · Sporochnales · Tilopteridales
- Species: ZipcodeZoo has pages for 3,822 species and subspecies in the Class Phaeophyceae.
Orders
Ascoseirales
Ascoseira is a large genus of seaweed in the brown algae (class Phaeophyceae). A. mirabilis is endemic to the western Antarctic Ocean. It is a monotypic genus of a single species Ascoseira mirabilis Skottsberg, the holotype species, and it is assigned to its own order. [more]
Chordariales
Chordariaceae is a family in the class Phaeophyceae (brown algae). Members of this family are may be filamentous, crustose with fused cells at the base or they may be terete and differentiated into a central medulla and an outer photosynthetic cortex. They have a sporphytic thallus usuallay aggregated to form a pseudo parenchyma. [more]
Cutleriales
Desmarestiales
Dictyosiphonales
Dictyosiphonales is an order in the class Phaeophyceae (brown algae). Members of this order have a sporphytic thallus with true parenchyma formed by both longitudinal and transverse cell division with a thallus that is solid, tubular flat, saccate, branched or foliose. [more]
Dictyotales
Dictyotales is a large order in the brown algae (class Phaeophyceae). Members of this order generally prefer warmer waters than other brown algae. One genus in this order is calcareous, Padina, the only calcareous member of this phylum. [more]
Durvillaeales
Ectocarpales
Ectocarpales is a very large order in the brown algae (class Phaeophyceae). 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. [more]
Fucales
Fucales is an order in the brown algae (class Phaeophyceae). Members of this order are fucoids. The list of families (see box at right) in Fucales, as well as additional taxonomic information on algae, is publicly accessible at Algaebase. [1] [more]
Laminariales
Kelps are large seaweeds (algae) belonging to the brown algae (Phaeophyceae) in the order Laminariales. There are about 30 different genera.[] [more]
Scytosiphonales
Scytothamnales
Sphacelariales
Sphacelariales is an order of brown algae (class Phaeophyceae). [more]
Sporochnales
Tilopteridales
Tilopteridales is an order of brown algae (class Phaeophyceae) with isomorphic alternation of generations. [more]
At least 5 species and subspecies belong to the Order Tilopteridales.
More info about the Order Tilopteridales may be found here.
Sources
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