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Florideophyceae
Florideophyceae is a class of exclusively multicellular red algae. They were once thought to be the only algae to bear pit connections, but these have since been found in the filamentous stage of the Bangiaceae. They were also thought only to exhibit apical growth, but there are genera known to grow by intercalary growth. Most, but not all, genera have three phases to the Biological life cycle, life cycle. In the subclass Nemaliophycidae there are three orders, Balbianiales, Batrachospermales, and Thoreales, which lives exclusively in freshwater. Classification There are various classification schemes; see red algae. One option is to use the following: Subclass Hildenbrandiophycidae * Hildenbrandiales Subclass Nemaliophycidae * Acrochaetiales * Balbianiales * Balliales * Batrachospermales * Colaconematales * Nemaliales * Palmariales * Entwisleiales * Thoreales Subclass Corallinophycidae * Corallinales * Corallinapetrales * Rhodogorgonales * Sporolithales The subclass Coral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Algae
Red algae, or Rhodophyta (, ; ), make up one of the oldest groups of eukaryotic algae. The Rhodophyta comprises one of the largest Phylum, phyla of algae, containing over 7,000 recognized species within over 900 Genus, genera amidst ongoing taxonomic revisions. The majority of species (6,793) are Florideophyceae, and mostly consist of multicellular, ocean, marine algae, including many notable seaweeds. Red algae are abundant in marine habitats. Approximately 5% of red algae species occur in freshwater environments, with greater concentrations in warmer areas. Except for two coastal cave dwelling species in the asexual class Cyanidiophyceae, no terrestrial species exist, which may be due to an evolutionary bottleneck in which the last common ancestor lost about 25% of its core genes and much of its evolutionary plasticity. Red algae form a distinct group characterized by eukaryotic cells without flagella and centrioles, chloroplasts without external endoplasmic reticulum or unstack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nemaliophycidae
Florideophyceae is a class of exclusively multicellular red algae. They were once thought to be the only algae to bear pit connections, but these have since been found in the filamentous stage of the Bangiaceae. They were also thought only to exhibit apical growth, but there are genera known to grow by intercalary growth. Most, but not all, genera have three phases to the life cycle. In the subclass Nemaliophycidae there are three orders, Balbianiales, Batrachospermales, and Thoreales, which lives exclusively in freshwater. Classification There are various classification schemes; see red algae Red algae, or Rhodophyta (, ; ), make up one of the oldest groups of eukaryotic algae. The Rhodophyta comprises one of the largest Phylum, phyla of algae, containing over 7,000 recognized species within over 900 Genus, genera amidst ongoing taxon .... One option is to use the following: Subclass Hildenbrandiophycidae * Hildenbrandiales Subclass Nemaliophycidae * Acrochaetiale ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ahnfeltiales
Ahnfeltiales is an order of red algae belonging to the class Florideophyceae Florideophyceae is a class of exclusively multicellular red algae. They were once thought to be the only algae to bear pit connections, but these have since been found in the filamentous stage of the Bangiaceae. They were also thought only to ex .... The order consists only one family: Ahnfeltiaceae. Genera: * '' Ahnfeltia'' E.M.Fries * '' Porphyrodiscus'' Batters * '' Sterrocolax'' F.Schmitz References {{Taxonbar, from=Q2827708 Florideophyceae Red algae orders Monotypic algae orders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balliales
Balliales is an order of red algae belonging to the class Florideophyceae Florideophyceae is a class of exclusively multicellular red algae. They were once thought to be the only algae to bear pit connections, but these have since been found in the filamentous stage of the Bangiaceae. They were also thought only to ex .... The order consists only one family, Balliaceae. with only one genus - Ballia Harvey. The genus of ''Balliales'' was circumscribed by William Henry Harvey in J. Bot. (Hooker) vol.2 on page 191 in 1840. The genus name of ''Balliales'' is in honour of Anne Elizabeth Ball (1808–1872), who was an Irish botanist, amateur algologist, and botanical illustrator. Species As accepted by AlgaeBase; * '' Ballia callitricha'' * '' Ballia chilensis'' * '' Ballia crassa'' * '' Ballia nana'' * '' Ballia pennoides'' * '' Ballia sertularioides'' * '' Ballia vestium'' References {{Taxonbar, from=Q2881290 Florideophyceae Red algae orders Monotypic algae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balbianiales
Balbianiales is an order of red algae belonging to the class Florideophyceae Florideophyceae is a class of exclusively multicellular red algae. They were once thought to be the only algae to bear pit connections, but these have since been found in the filamentous stage of the Bangiaceae. They were also thought only to ex .... The order consists only one family: Balbianiaceae. Genera: * '' Balbiania'' Sirodot, 1876 * '' Rhododraparnaldia'' R.G.Sheath, A.Whittick & K.M.Cole, 1994 References {{Taxonbar, from=Q2880595 Florideophyceae Red algae orders Monotypic algae orders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thoreales
Thoreales is an order of red algae belonging to the class Florideophyceae. The order consists only one family, Thoreaceae .Hassall, A.H. 1845. A history of the British freshwater algae, including descriptions of the Desmideae and Diatomaceae. With upwards of one hundred plates, illustrating the various species. Vol. I. pp. ��viii, ��462, , err. London, Edinburgh, Paris & Leipzig: S. Highley, H. Baillière; Sunderland & Knox; J.B. Baillière; T.O. Weigel. The family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ... of ''Thoreaceae'' was circumscribed by Arthur Hill Hassall in A history of the British freshwater algae, including descriptions of the ''Desmideae'' and ''Diatomaceae'' in 1845. The family was originally placed in the Nemaliales order before being transferred to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colaconematales
''Colaconema'' is a genus of marine red algae Red algae, or Rhodophyta (, ; ), make up one of the oldest groups of eukaryotic algae. The Rhodophyta comprises one of the largest Phylum, phyla of algae, containing over 7,000 recognized species within over 900 Genus, genera amidst ongoing taxon .... It is the only genus in the family Colaconemataceae which is the only family in Order Colaconematales . The genus has cosmopolitan distribution. Species As accepted by AlgaeBase; * '' Colaconema americanum'' C.-C.Jao, 1936 * '' Colaconema amphiroae'' ( K.M.Drew) P.W.Gabrielson, 2000 * '' Colaconema asparagopsidis'' Chemin, 1927 * '' Colaconema asparagopsis'' Chemin, 1926 * '' Colaconema attenuatum'' ( Rosenvinge) R.Nielsen, 1994 * '' Colaconema basiramosum'' M.J.Wynne & C.W.Schneider, 2008 * '' Colaconema bisporum'' ( Børgesen) I.-K.Hwang & H.-S.Kim, 2011 * '' Colaconema bonnemaisoniae'' Batters, 1896 * '' Colaconema caespitosum'' ( J.Agardh) Jackelman, Stegenga & J. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corallinophycidae
The Corallinophycidae is a grouping of several calcifying red algal lineages recovered by molecular analysis. Orders According to AlgaeBase, it contains; * Order Corallinales (826 species) * Order Corallinapetrales (2) * Order Corallinophycidae ord. incertae sedis (6) * Order Rhodogorgonales (18) * Order Sporolithales (61) References Florideophyceae Diaphoretickes subclasses {{red algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodogorgonales
The Rhodogorgonales are an order of red algae, a sister group to the corallines. They are always thalloid and calcified; their calcification is very different from the corallines, as individual calcite crystals are deposited in the cell wall A cell wall is a structural layer that surrounds some Cell type, cell types, found immediately outside the cell membrane. It can be tough, flexible, and sometimes rigid. Primarily, it provides the cell with structural support, shape, protection, ... of specialised cells; this suggests that the evolution of calcification may have been independent from the corallines. They have no fossil record. Unlike the corallinales and sporolithales, their closest relatives, these thalli are loose aggregations of hair-like cells, with the middle portion formed of rhizoid-like filaments. Spores are borne on the end of hair-like cells (cortical fascicles). Images can be seen in Families As accepted by AlgaeBase; * Family Elianellaceae (13 speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hildenbrandiales
Hildenbrandiales is an order of crustose forms red alga which bear conceptacles and produce secondary pit-connections. They reproduce by vegetative gemmae as well as tetrasporangia, which are produced inside the conceptacles. The way in which the tetraspores are produced is unusual enough to justify the formation of this distinct order. Some members of the order are known from freshwater rivers as well. Systematics Hildenbradiales are difficult to discriminate on morphological grounds; tetrasporangia morphology is the only vaguely reliable character, but molecular techniques have indicated a monophyletic '' Apophlaea'' within a paraphyletic Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In co ... '' Hildenbrandia'', with many ''Hildenbrandia'' species being recognized as non-monoph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
