Desmidiaceae
Template:Short description Template:Automatic taxobox
The Desmidiaceae are one of four families of charophyte green algae in the order Desmidiales (desmids).[1] Desmids in the family Desmidiaceae consist of single-celled (sometimes filamentous or colonial), microscopic green algae. Because they are highly symmetrical, attractive, and come in a diversity of forms, they are popular subjects for microscopists, both amateur and professional.[2]
Within the desmids (Desmidiales), Desmidiaceae contains tens of genera and thousands of species, making it by far the largest family. Desmidiaceae includes some of the largest and most complex desmid genera, such as Micrasterias, Cosmarium, Staurastrum, and Euastrum.[3]
Description
Desmids are single-celled (sometimes filamentous or colonial) algae, which are generally constricted in the middle, having two identical halves called semicells. The cell wall also consists of two halves. In apical view, the cells may be compressed (biradiate), three- or multi-angular (tri- or multiradiate), or circular (omniradiate). The cell wall is marked by having pores which penetrate all cell wall layers and contain a mucilaginous plug (called the pore fields). In addition to having pores, the cell wall may be covered in spines, pits ("scrobicles" or "scrobiculae"), lobes, or granules. Chloroplasts are axial or parietal.[3]
Genera
Within the family Desmidiaceae, genera are delimited based on morphological characters such as the symmetry of the cells; whether the cells are solitary, filamentous, or colonial; the presence or absence of long processes or extensions; and the shape of the chloroplasts.[3] However, most of these characters are highly homoplasious; therefore, many or even most genera are artificial and para- or polyphyletic.[4]
Genera accepted by AlgaeBase since April 2025[update]Template:Dated maintenance category (articles)Script error: No such module "Check for unknown parameters". were:[5]
- Actinodontum Alfinito & CoeselScript error: No such module "Check for unknown parameters". – 3 species
- Actinotaenium (Nägeli) TeilingScript error: No such module "Check for unknown parameters". – 66 species
- Allorgeia Gauthier-Lièvre ex Guiry & CoeselScript error: No such module "Check for unknown parameters". – 2 species
- Amscottia GrönbladScript error: No such module "Check for unknown parameters". – 2 species
- Bambusina Kützing ex KützingScript error: No such module "Check for unknown parameters". – 8 species
- Bourellyodesmus CompèreScript error: No such module "Check for unknown parameters". – 10 species
- Brachytheca Gontcharov & WatanabeScript error: No such module "Check for unknown parameters". – 2 species
- †Closterimopsis L.M.Yin & Zai P.LiScript error: No such module "Check for unknown parameters". – 1 species
- Cosmarium Corda ex RalfsScript error: No such module "Check for unknown parameters". – 1206 species
- Cosmocladium BrébissonScript error: No such module "Check for unknown parameters". – 8 species
- Croasdalea C.E.M.Bicudo & MercanteScript error: No such module "Check for unknown parameters". – 1 species
- Cruciangulum D.B.WilliamsonScript error: No such module "Check for unknown parameters". – 1 species
- Desmidium C.Agardh ex RalfsScript error: No such module "Check for unknown parameters". – 25 species
- †Desmidopsis L.M.Yin & Zai P.LiScript error: No such module "Check for unknown parameters". – 1 species
- Docidium Brébisson ex RalfsScript error: No such module "Check for unknown parameters". – 22 species
- Euastridium West & G.S.WestScript error: No such module "Check for unknown parameters". – 3 species
- Euastrum Ehrenberg ex RalfsScript error: No such module "Check for unknown parameters". – 358 species
- Groenbladia TeilingScript error: No such module "Check for unknown parameters". – 6 species
- Haplotaenium BandoScript error: No such module "Check for unknown parameters". – 4 species
- Heimansia CoeselScript error: No such module "Check for unknown parameters". – 2 species
- Hyalotheca Ehrenberg ex RalfsScript error: No such module "Check for unknown parameters". – 14 species
- Ichthyocercus West & G.S.WestScript error: No such module "Check for unknown parameters". – 6 species
- Ichthyodontum A.M.Scott & PrescottScript error: No such module "Check for unknown parameters". – 1 species
- Mateola R.SalisburyScript error: No such module "Check for unknown parameters". – 1 species
- Micrasterias C.Agardh ex RalfsScript error: No such module "Check for unknown parameters". – 100 species
- Onychonema WallichScript error: No such module "Check for unknown parameters". – 1 species
- Oocardium NägeliScript error: No such module "Check for unknown parameters". – 3 species
- Pachyphorium Palamar-MordintsevaScript error: No such module "Check for unknown parameters". – 1 species
- Phymatodocis NordstedtScript error: No such module "Check for unknown parameters". – 3 species
- Pleurotaeniopsis (P.Lundell) LagerheimScript error: No such module "Check for unknown parameters". – 1 species
- Pleurotaenium NägeliScript error: No such module "Check for unknown parameters". – 89 species
- Prescottiella C.E.M.BicudoScript error: No such module "Check for unknown parameters". – 1 species
- Pseudomicrasterias C.B.Araújo, C.E.M.Bicudo, Stastny & SkaloudScript error: No such module "Check for unknown parameters". – 2 species
- Sphaerozosma Corda ex RalfsScript error: No such module "Check for unknown parameters". – 20 species
- Spinocosmarium Prescott & A.M.ScottScript error: No such module "Check for unknown parameters". – 2 species
- Spondylosium Brébisson ex KützingScript error: No such module "Check for unknown parameters". – 33 species
- Staurastrum Meyen ex RalfsScript error: No such module "Check for unknown parameters". – 788 species
- Staurodesmus TeilingScript error: No such module "Check for unknown parameters". – 87 species
- Streptonema WallichScript error: No such module "Check for unknown parameters". – 3 species
- Teilingia BourrellyScript error: No such module "Check for unknown parameters". – 9 species
- Tetmemorus Ralfs ex RalfsScript error: No such module "Check for unknown parameters". – 10 species
- Triplastrum M.O.P.Iyengar & RamanathanScript error: No such module "Check for unknown parameters". – 3 species
- Triploceras BaileyScript error: No such module "Check for unknown parameters". – 3 species
- Vincularia K.Fuciková & J.KastovskyScript error: No such module "Check for unknown parameters". – 1 species
- Xanthidium Ehrenberg ex RalfsScript error: No such module "Check for unknown parameters". – 128 species
References
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- ↑ See the NCBI webpage on Desmidiaceae. Data extracted from the Script error: No such module "citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ a b c Script error: No such module "citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
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