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Dictyosphaerium Pulchellum
''Mucidosphaerium pulchellum'', also known by its synonym ''Dictyosphaerium pulchellum'', is a species of freshwater green algae, in the family Chlorellaceae. ''Mucidosphaerium pulchellum'' is widespread, occurring in plankton of freshwater bodies. It appears to be the most common in temperate to subarctic climates. For example, it is present in many lakes in southern Chile and Argentina including Lanalhue Lake, Lanalhue, Quillén Lake, Quillén, Lácar Lake, Lácar, and Nahuel Huapi Lake, Nahuel Huapi. In this last lake it is the dominant algae species in the winter halfyear. It has occasionally been found terrestrially on soil. Description ''Mucidosphaerium pulchellum'' consists of colonies of cells up to 80 μm wide, with 16 to 32 (rarely 64) cells, or solitary cells. Young cells are obovoid to ellipsoidal or spindle-shaped, while older cells are spherical. The cells are attached on tetrachotomously branched (i.e. 4-branched) threads by their narrow ends. The chloroplast is ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
