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The Zygnematophyceae, formerly known as the Conjugatophyceae, generally possess two fairly elaborate chloroplasts in each cell, rather than many discoid ones. They reproduce asexually by the development of a septum between the two cell-halves or semi-cells (in unicellular forms, each daughter-cell develops the other semi-cell afresh) and sexually by conjugation, or the fusion of the entire ...
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). [4] [5] [6]
Charophyceae is a class of charophyte green algae. AlgaeBase places it in division Charophyta. [1] Extant (living) species are placed in a single order Charales, [2] commonly known as "stoneworts" and "brittleworts".
The Viridiplantae diverged into two clades. The Chlorophyta include the early diverging prasinophyte lineages and the core Chlorophyta, which contain the majority of described species of green algae. The Streptophyta include charophytes and land plants. Below is a consensus reconstruction of green algal relationships, mainly based on molecular ...
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 or two (Characeae and Feistiellaceae). Further families are used for fossil members of the order.
Systematically they fall within the division Charophyta/Streptophyta, in which the land plants (Embryophyta) emerged. [3] Sexual reproduction in Zygnematales takes place through a process called conjugation. [4] Here filaments of opposite gender line up, and tubes form between corresponding cells.
Blue is the range of Felinae (excluding the domestic cat), green is the range of Pantherinae. Felidae is a family of mammals in the order Carnivora, colloquially referred to as cats. A member of this family is called a felid. [1] [2] The term "cat" refers both to felids in general and specifically to domestic cats.
Charophyta Migula 1897 sensu Lewis & McCourt 2004; [3] Karol et al. 2009 Streptobionta Kenrick & Crane 1997 Streptophyta ( / s t r ɛ p ˈ t ɒ f ɪ t ə , ˈ s t r ɛ p t oʊ f aɪ t ə / ), informally the streptophytes ( / ˈ s t r ɛ p t ə f aɪ t s / , from the Greek strepto 'twisted', for the morphology of the sperm of some members), is a ...