The jelly-like matter is Nostoc, a genus of cyanobacterium formerly classified as blue-green algae. The algae — commonly known as star jelly and witch’s butter, among other names — may ...

Nostoc zetterstedtii has become one of rarest freshwater macroalgae because of widespread lake eutrophication reducing water transparency and increasing competition from taller and faster-growing ...

Filamentous cyanobacteria such as Anabaena and Nostoc are oxygenic photoautotrophs ... the supracellular structure of the cyanobacterial filament and the basic principles that govern the process ...