Help with filamentous algae
Hi, I am a biologist from spain just getting into freshwater algae. I picked up this specimen in Cantabria (northern spain) from a basic rock type on the river margin, where the water was very slow. It formed a thick coarse mat with a texture similar to wet hair (not mucilagenous).
After hours looking into the guides available on the web I think that this may be part of the family Chaetophoraceae, but the chloroplast localization (both cell tips on the filament's axis) does not coincide with the usual parietal positioning of the chloroplasts of Chaetophoraceae.
Also, that slight thinning in between some cells seems pretty strange for me.
Some filaments reach up to 8cm long in a single line of cells.
It seems to have...heterocysts?
Anyone has got any idea of what this could be or has any pdf guides to share with me?
Thank you all very much!
