| It was a picture of spirogyra, a single cell organism, taken through a microscope. |
| Freshwater filtration applications are useful, too, and will commonly grow species such as Spirogyra. |
| This is Anton van Leeuwenhoek writing from Holland to the Royal Society in 1674, giving the first account of spirogyra, among other organisms. |
| Entomologists also noted a strong larval association with spirogyra algae. |
| The number of these bands varies much in different species of spirogyra, but is commonly two or three. |
| Lindsay describes experiments carried on in a reservoir infested with spirogyra. |
