B
ackhaus
:
Phormidium ingrediens sp. nova
Tafel 3
Figs 17, 18. Phormidium corium from a rivulet in the southern Black Forest. Scale bars in µm.
Fig. 20-21. Phormidium ingrediens from river Breg near Hüfingen, south-east edge of the Black Forest. Scale bar
in µm.
Figs 13-14. Front of Araldite-filled up boring canals showing the calcite crystal structure. Scale bars in µm.
10