Tiny Organisms in Aquatic Habitats
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Desmids –
 Archaeplastida (Part) 

Illustrated Key for

Desmids (Mesostigmatophyceae and Zygnematophyceae)

Archaeplastida – Chloroplastida – Streptophyta

Mesostigmatophyceae
Zygnematophyceae/Desmidiales/Closteriaceae

Sorted by morphological criteria, analogous to the desmidiological identification literature. Alphabetical sorting in the menu under “Zygnematophyceae.”

Zygnematophyceae/Desmidiales/
Desmidiaceae (coccoid part, genera with elongated cells)
Zygnematophyceae/Desmidiales/
Desmidiaceae/Cosmarium

Sorted by morphological criteria, analogous to the desmidiological identification literature. Alphabetical sorting in the menu under “Zygnematophyceae.”

Zygnematophyceae/Desmidiales/
Desmidiaceae/Euastrum

Sorted by morphological criteria, analogous to the desmidiological identification literature. Alphabetical sorting in the menu under “Zygnematophyceae.”

Zygnematophyceae/Desmidiales/
Desmidiaceae/Micrasterias

Sorted by morphological criteria, analogous to the desmidiological identification literature. Alphabetical sorting in the menu under “Zygnematophyceae.”

Zygnematophyceae/Desmidiales/
Desmidiaceae/Staurastum

Sorted by morphological criteria, analogous to the desmidiological identification literature. Alphabetical sorting in the menu under “Zygnematophyceae.”

Zygnematophyceae/Desmidiales/
Desmidiaceae/Staurodesmus
Zygnematophyceae/Desmidiales/
Desmidiaceae/Xanthidium
Zygnematophyceae/Desmidiales/
Gonatozygaceae
Zygnematophyceae/Desmidiales/
Peniaceae
Zygnematophyceae/Zygnematales/
Mesotaeniaceae

Archaeplastida – Chloroplastida – Streptophyta

Zygnematophyceae/Zygnematales/
Zygnemataceae (coccoid part)

Zygnematophyceae/Desmidiales/ Desmidiaceae (filamentous part)
Zygnematophyceae/Zygnematales/ Zygnemataceae (filamentous part)

© Wolfgang Bettighofer 2023–2024

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