|
|
|
|
||
 |
|
 |
||
|
|
||||
|
Click on images for larger format |
||||
Name derivation: |
||||
|
“Two-shaped coccoid
cells” – Two Di- shaped –morpho- coccoid cells –coccus
|
||||
Classification: |
||||
Dimorphococcus Braun 1855; 2 of 3 species descriptions are currently accepted taxonomically (Guiry and Guiry 2013).
Order Sphaeropleales; Family Scenedesmaceae
|
||||
Morphology: |
||||
|
Flat
mat one cell thick, generally round, with short upward branches bearing gametangia with spermatocytes
toward the mat perimeter and oocytes
toward the center of the mat.
|
||||
Similar genera: |
||||
|
The outer row of cells of
Pediastrum duplex have similar
two-horned cells. Similar
morphologically to Dictyosphaerium
but the individual cells are usually of irregular shapes.
|
||||
Habitat: |
||||
|
Freshwater
lakes, both planktonic, aufwuchs,
and benthic. Cosmopolitan, sometimes abundant in peat bogs.
|
||||
References: |
||||
|
Braun, A. (1855). Algarum
unicellularium genera nova et minus cognita
praemissis observationibus
de algis unicellularibus
in genere. pp. [1]-114, 6 pls. Lipsiae
[Leipzig]: apud W. Engelmann. Guiry, M. in Guiry, M.D. and Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 15 January 2013. |
||||
