Plankton from Hidden Lochan, Aviemore.
August, 2000.

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Botryococcus sp.: Cells are difficult to see in this genus because of the dense coloured colonial mucilage: two images of the same colonies, focussed on the left to show (just!) the cells, on the right to show the edge of the colonies, with interconnecting mucilage strands.

Stigeoclonium sp.

Geminella

Desmids

Closterium acerosum

Two images focussed at different levels to show detail of the chloroplasts:

Closterium lunula
Two images focussed at different levels to show detail of the chloroplasts:
C. intermedium
 

 
Pleurotaenium trabecula
Hyalotheca dissiliens

 

John Kinross

[snaps]