MICRO*SCOPE   Taxonomic classification according to arcella.nl (Siemensma, F. J., Microworld, world of amoeboid
  organisms. World-wide electronic publication, Kortenhoef, the Netherlands) for amoeboid organisms
  or Encyclopedia of Life for all others.
    Eucaryota : Archaeplastida : Chloroplastida : Streptophyta : Zygnemophyceae : Zygnemophycidae : Desmidiales : Desmidiaceae
 
   
   
   
     
Micrasterias americana

Micrasterias americana shows a very special morphological phenomenon. The four minor extensions of apical lobes are optional. But if some of them are formed they show rotational symmetry according to direction of the appendices. This depth of focus picture assembling 26 high resolution shots shows a specimen with all four extensions formed.
 
Sample from sphagnum pond situated in the northern alpine region of Austria near Salzburg. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.

Image under Creative Commons License V 3.0 (CC BY-NC-SA).

Place name: Bogs near Salzburg (Austria)  
 
Latitude: 48.068516     Longitude: 12.954134
 




Micrasterias americana zeigt ein ganz besonderes morphologisches Phänomen. Die vier kleineren Fortsätze der apikalen Lappen werden nicht immer ausgebildet. Aber wenn sie, wie hier gezeigt, ausgebildet sind, wachsen sie punktsymmetrisch bezüglich des Ansatzes und der Wuchsrichtung. Tiefenschärfe durch Multiebenenabbildung aus 26 Bildebenen, manuell gestapelt.

Probe aus einem Moor in den nördlichen Kalkalpen von Österreich in der Nähe von Salzburg. Mikrotechnik: Zeiss Universal, Kamera: Olympus C7070.

Creative Commons License V 3.0 (CC BY-NC-SA).  
 


 
For permission to use of (high-resolution) images please contact postmaster@protisten.de.  
 
PROTISTEN.DE Archive Number:
Micrasterias-americana-parch2022-1401
   
Multi-layer image (DOF)
 
   
Micrasterias americana
 
       
   
  © Wolfgang Bettighofer 2010–2023