Description: English: A didymo sign on a gate that leads to Maling Pass in Canterbury, New Zealand. Date: 14 November 2009. Source: Own work. Author: Alan Liefting.
Description: English: Image of the silica cell wall of the diatom Didymosphenia geminata from Rio Espolon, Chile. The sample was collected early in 2010 from an extensive bloom on the river. The image has been processed to show the silica cell wall, removing the organic cell contents and the stalk material. Date: 24 May 2010, 09:46:42. Source: http://gallery.usgs.gov/photos/06_08_2010_vaq1Thf6SN_06_08_2010_0#.Ut6WzPfTnre. Author: Photographer: Sarah Spaulding, USGS. Other versions: .
Description: English: Micrograph of the silica cell wall of Didymosphenia geminata from Rio Espolon, Chile - USGS FORT. Date: 24 May 2010. Source: USGS FORT. Author: Sarah Spaulding, USGS. Other versions: .