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Charophyta (UK: / k ə ˈ r ɒ f ɪ t ə, ˌ k ær ə ˈ f aɪ t ə /) is a group of freshwater green algae, called charophytes (/ ˈ k ær ə ˌ f aɪ t s /), sometimes treated as a division, [2] yet also as a superdivision [3] or an unranked clade.
Zygnematophyceae (or Conjugatophyceae) is a class of green algae in the paraphylum streptophyte algae, also referred to as Charophyta, [2] consisting of more than 4000 described species. [3] The Zygnematophyceae are the sister clade of the Embryophyta (land plants).
AlgaeBase places it in division Charophyta. [1] Extant (living) species are placed in a single order Charales , [ 2 ] commonly known as "stoneworts" and "brittleworts". Fossil members of the class may be placed in separate orders, e.g. Sycidiales and Trochiliscales .
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Mougeotia is able to reproduce sexually, through a process known as conjugation. It is isogamous, with two different but identically appearing gamete types. [4]In scalariform conjugation, cells of two separate filaments line up parallel to one other.
There are about 400 extant species worldwide, with 33 in Britain and Ireland according to Groves and Bullock-Webster), [2] [3] however Stewart and Church (1992) reduce this to 21. [4] Characeae are the principal photosynthesizers of some of the volcanic crater lakes of Nicaragua, and can be found in excess of 20 meters depth in some circumstances.
Charales is an order of freshwater green algae in the division Charophyta, class Charophyceae, commonly known as stoneworts. Depending on the treatment of the genus Nitellopsis , living (extant) species are placed into either one family ( Characeae ) or two (Characeae and Feistiellaceae ).
This category has the following 2 subcategories, out of 2 total. Charophyta genera (46 P) Z. Zygnematophyceae (3 C, 1 P) Pages in category "Charophyta"