| Claudea | |
|---|---|
 | |
| Claudea elegans | |
Scientific classification  | |
| (unranked): | Archaeplastida |
| Division: | Rhodophyta |
| Class: | Florideophyceae |
| Order: | Ceramiales |
| Family: | Delesseriaceae |
| Genus: | Claudea J.V. Lamouroux |
| Species | |
Claudea batanensis Tanaka Contents | |
Claudea is a marine red alga genus.
The genus was named for Claude Lamouroux, father of Jean Vincent Félix Lamouroux. Claude was born in Agen in 1741. [1] [2]
The genus of Claudea was circumscribed by Jean Vincent Félix Lamouroux in Ann. Mus. Natl. Hist. Nat. vol.20 on page 121 in 1813.
Currently there are 4 species in the Algaebase, where Claudea bennettiana Harvey is considered as homotypic or heterotypic species. Claudea elegans J.V.Lamouroux is the holotype species. [1]
According to the description presented in electronic flora of South Australia, "the thallus was described with net-like fronds, the stipes can be long or short developed from the midrib of the nets. The holdfast was described to be discoid to conical pseudoparenchymatous; epilithic or epiphytic. The apices of fronds formed a dome-shaped apical cell segmenting to give an axial filament, where each cell contains 4 pericentral cells (2 lateral cells cut off first followed by 2 transverse pericentral cells), lateral pericentral cells developing second-order rows with their inner cells forming third-order rows, with all second and third-order rows reaching the blade margin; fourth-order rows occasionally present marginally. The lateral pericentral cells develop wings 1–2 mm broad. The upper (adaxial) transverse pericentral cells each produce a secondary blade with similar apical development, of which each adaxial transverse pericentral cell produces a row of cells which connect to the lower (abaxial) transverse pericentral cells of the secondary frond above, with all cells except the apical adherent one developing flat blades as in primary and secondary axes. These tertiary blades and their interstices form the network of the fronds and similar branching of the tertiary blades forms quaternary blades with smaller networks. Cortication of the axes commences some distance below the apices and becomes thick on lower axes from which the wings are lost." [3]
A genus with 3 recognized species, the C. multifida was collected by Harvey from the northern Indian Ocean and reported also Andaman Island, India, Sri Lanka, Philippines, China, Taiwan and Federated States of Micronesia. The C. batanensis specimens were reported from South-east Asia: Philippines,Vietnam and Asian region particularly in South China Sea, and Taiwan. [1]
Based on Tanaka (1967) the C. batanensis grows on the tube of Polychaete associated with other algae like Acanthophora aokii Okamura in rather deep sea. [4]
Based from the electronic flora of South Australia, “the gametophytes is dioecious. Procarps (in C. multifida) borne on abaxial transverse pericentral cells, usually on successive cells, with 2 sterile groups and a 4-celled carpogonial branch. Carposporophyte with a basal fusion cell, much branched gonimoblast, and clavate to ovoid terminal carposporangia. Cystocarps dome-shaped to ovoid, borne singly on distinct pedicels; pericarp ostiolate, corticate. Spermatangial sori formed on tertiary or quaternary blades, with sterile midribs and margins, with initials cut off from second- and third-order rows producing an outer layer of spermatangia.” [3] [5]
Tetrasporangial sori formed on tertiary and quaternary blades, with tetrasporangia cut off from second-order cells in a single (or displaced to two) layer (from cortical cells also in C. multifida), with cover cells on each side of the blade dividing to form a continuous cortical layer; tetrasporangia subspherical, tetrahedrally divided. [3] [5]
Exploitation/harvesting/cultivation: Although considered in literature as rare, no cultivation of the genus was recorded Chemical composition/natural products chemistry: No available literature on the chemical composition of the three species within the genus.
Caulerpa is a genus of seaweeds in the family Caulerpaceae. They are unusual because they consist of only one cell with many nuclei, making them among the biggest single cells in the world.
Polysiphonia is a genus of filamentous red algae with about 19 species on the coasts of the British Isles and about 200 species worldwide, including Crete in Greece, Antarctica and Greenland. Its members are known by a number of common names. It is in the order Ceramiales and family Rhodomelaceae.
Bryopsis is a genus of marine green algae in the family Bryopsidaceae. It is frequently a pest in aquariums, where it is commonly referred to as hair algae.
Rhipiliopsis is a genus of green algae in the family Rhipiliaceae. Johnson-sea-linkia is a synonym.
Struvea is a genus of green macroalgae in the family Boodleaceae.
The Delesseriaceae is a family of about 100 genera of marine red alga.
Amphiroa is a genus of thalloid red algae under the family Corallinaceae.
Plocamium is a genus of red algae in the family Plocamiaceae. It contains around 40 species and has a cosmopolitan distribution in temperate seas, although it is most diverse in the southern hemisphere. It is widely distributed in tropical and also warm-temperate and cold-temperate seas, such as northern Europe, the northern Arabian Sea and western Australia. They are also found in the Antarctic regions of Admiralty Bay and Terra Nova Bay.
Rivularia is a genus of cyanobacteria of the family Rivulariaceae.
Hypnea is a genus of red algae, and a well known carrageenophyte.
Sirodotia Kylin (1912) is a genus of freshwater red alga which was described by Kylin in 1912, and placed in the Batrachospermaceae family.
Batrachospermaceae is a family of fresh water red algae (Rhodophyta). Genera within the Batrachospermaceae generally have a "Lemanea-type" life history with carpospores germinating to produce chantransia. Sporophyte phase with meiosis occurs in an apical cell to produce the gametophyte stage. Pit connections have two pit plug cap layers with the other layer enlarged. This family of freshwater red algae is uniaxial, meaning each filament with a single apical cell. The genera included within Batrachospermaceae are listed in the table below.
Mastocarpus papillatus, sometimes called Turkish washcloth, black tar spot, or grapestone is a species of red algae in the family Phyllophoraceae. It is sometimes confused with the distantly related Turkish towel which is of a similar texture but larger. The specific epithet papillatus is due to the nipple-like projections on the female gametophyte which can give the texture of a terrycloth washcloth found at a Turkish bath.
Dictyota is a genus of brown seaweed in the family Dictyotaceae. Species are predominantly found in tropical and subtropical seas, and are known to contain numerous chemicals (diterpenes) which have potential medicinal value. As at the end of 2017, some 237 different diterpenes had been identified from across the genus.
Phyllophora pseudoceranoides, the stalked leaf bearer, is a small marine red alga.
Callithamniaceae is a family of red algae (Rhodophyta) in the order Ceramiales. The family was first described by Friedrich Traugott Kützing in 1843.
Amphiroa beauvoisii is a species of thalloid red algae in the Corallinaceae family. It is widely distributed across the world, and can be found attached to rocks in intertidal areas. Individual organisms consist of a base of calcified material, tissue in the shape of branching fan-like planes growing out of it. It exhibits a wide range of morphologies based on where it is found, as well as different reproductive behaviors based on season and location.
The Pterocladiophilaceae is a small family of red algae containing 2 genera of thallus parasitic algae.
Liagoraceae is a family of red algae (Rhodophyta) in the order Nemaliales. The type genus is LiagoraJ.V.Lamouroux.
http://www.flora.sa.gov.au/efsa/Marine_Benthic_Flora_SA/Part_IIID/Claudea.shtml M.D. Guiry in Guiry, M.D. & Guiry, G.M. 17 February 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 21 January 2022.