• Cell Length: from 5 to 30 µm
• Cell Width: from 5 to 28 µm
• Diameter of colony: up to 180 µm

Distribution: as Pediastrum boryanum (Turpin) Meneghini

Arctic: Ellesmere Island (Croasdale 1973). Europe: Andorra (Cambra Sánchez, Álvarez Cobelas & Aboal Sanjurjo 1998), Balearic Islands (Cambra Sánchez, Álvarez Cobelas & Aboal Sanjurjo 1998), Baltic Sea (Hällfors 2004), Black Sea (BSPC Editorial Board 2014), Britain (John & Tsarenko 2002, Whitton et al. 2003), Portugal (Cambra Sánchez, Álvarez Cobelas & Aboal Sanjurjo 1998), Romania (Caraus 2002, Caraus 2012), Spain (Álvarez Cobelas 1982, Aboal & Llimona 1984b, Alvárez Cobelas & Gallardo 1986, Aboal 1988b, Aboal, Prefasi & Asencio 1996, Aboal 1996, Cambra Sánchez, Álvarez Cobelas & Aboal Sanjurjo 1998, Zafra & Aboal 2004, Fanés Treviño, Comas González & Sánchez Castillo 2009), Turkey (Europe) (Ersanli & Gönülol 2006). North America: Arkansas (Smith 2010), Connecticut (McManus & Lewis 2005), Minnesota (McManus & Lewis 2005). South America: Bolivia (Helbling, Villafañe, Buma, Andrade & Zaratti 2001), Brazil (Menezes 2010). South-west Asia: Iran (, Afsharzadeh et al. 2003, Ramzannejad Ghadi 2008). Asia: China (Hu & Wei 2006), Korea (Kim & Kim 2012), Nepal (Hirano 1969), Taiwan (Anon. 2012). South-east Asia: Singapore (Pham et al. 2011). Australia and New Zealand: New South Wales (Day et al. 1995), Northern Territory (Day et al. 1995), Queensland (Day et al. 1995), Tasmania (Day et al. 1995), Victoria (Day et al. 1995). Pacific Islands: Hawaiian Islands (Sherwood 2004).

as Pseudopediastrum boryanum (Turpin) E.Hegewald

Europe: Germany (Täuscher 2014), Spain (Pérez, Maidana & Comas 2009, Pérez, Comas & Maidana 2010).

Not reported.

Not reported.