Origin of spirogyra
Examples from the Web for spirogyra
Each thread is a long tube, branching sometimes, but not divided into cells as in Spirogyra or Cladophora.
Lindsay describes experiments carried on in a reservoir infested with Spirogyra.Inorganic Plant Poisons and Stimulants|Winifred E. Brenchley
The number of these bands varies much in different species of Spirogyra, but is commonly two or three.