| australia | | micrasterias hardyi | species | 1 | 0 |
| australia | | micrasterias zeylanica | species | 2 | 0 |
| australia | tasmania | micrasterias hardyi | species | 1 | 0 |
| australia | tasmania | micrasterias jenneri | species | 1 | 0 |
| austria | | micrasterias dickiei | species | 2 | 0 |
| austria | | micrasterias rotata | species | 4 | 0 |
| austria | carinthia | micrasterias papillifera var. mucronata | varietas | 1 | 0 |
| austria | carinthia | micrasterias rotata | species | 1 | 0 |
| austria | carinthia | micrasterias thomasiana | species | 1 | 0 |
| austria | tyrol | xanthidium antilopaeum | species | 1 | 0 |
| austria | tyrol | xanthidium antilopaeum var. incrassatum | varietas | 1 | 0 |
| austria | tyrol | xanthidium antilopaeum var. planum | varietas | 1 | 0 |
| austria | tyrol | xanthidium basiornatum | species | 2 | 0 |
| czech republic | | euastrum humerosum | species | 1 | 0 |
| czech republic | | micrasterias crux-melitensis | species | 1 | 0 |
| czech republic | | micrasterias crux-melitensis var. crux-melitensis | varietas | 2 | 0 |
| czech republic | | micrasterias papillifera | species | 1 | 0 |
| czech republic | | micrasterias rotata | species | 80 | 0 |
| czech republic | | micrasterias thomasiana | species | 1 | 0 |
| czech republic | | micrasterias truncata | species | 1 | 0 |
| czech republic | | micrasterias truncata var. semiradiata | varietas | 1 | 0 |
| denmark | | cosmarium pachydermum | species | 1 | 0 |
| denmark | | cosmarium regnellii | species | 1 | 0 |
| denmark | | staurastrum margaritaceum | species | 1 | 0 |
| denmark | | staurastrum paradoxum | species | 1 | 0 |
| finland | | micrasterias crux-melitensis var. janeira | varietas | 1 | 0 |
| finland | | micrasterias fimbriata var. spinosa | varietas | 1 | 0 |
| finland | | micrasterias rotata | species | 4 | 0 |
| finland | | micrasterias torreyi | species | 1 | 0 |
| finland | southwest finland region | micrasterias americana | species | 1 | 0 |
| france | | cosmarium regnellii | species | 1 | 0 |
| france | | micrasterias rotata | species | 4 | 0 |
| france | | uncultured cosmarium | species | 1 | 0 |
| france | aquitaine region | micrasterias truncata | species | 1 | 0 |
| germany | | micrasterias rotata | species | 12 | 0 |
| germany | bavaria | micrasterias truncata var. neodamensis | varietas | 1 | 0 |
| germany | brandenburg | staurastrum sp. stau1 | species | 3 | 0 |
| germany | hamburg | micrasterias crux-melitensis var. superflua | varietas | 1 | 0 |
| germany | hamburg | micrasterias papillifera | species | 1 | 0 |
| germany | hamburg | micrasterias thomasiana | species | 1 | 0 |
| germany | hesse | micrasterias thomasiana | species | 1 | 0 |
| germany | hesse | micrasterias truncata | species | 1 | 0 |
| germany | lower saxony | micrasterias thomasiana | species | 1 | 0 |
| germany | schleswig-holstein | micrasterias mahabuleshwarensis var. wallichii | varietas | 1 | 0 |
| germany | schleswig-holstein | micrasterias rotata | species | 2 | 0 |
| germany | schleswig-holstein | micrasterias thomasiana | species | 1 | 0 |
| germany | schleswig-holstein | micrasterias truncata | species | 1 | 0 |
| greenland | | micrasterias decemdentata | species | 1 | 0 |
| greenland | | xanthidium antilopaeum | species | 4 | 0 |
| indonesia | south sulawesi province | micrasterias ceratofera | species | 1 | 0 |
| indonesia | south sulawesi province | micrasterias foliacea | species | 1 | 0 |
| indonesia | south sulawesi province | micrasterias tropica | species | 1 | 0 |
| ireland | | micrasterias rotata | species | 44 | 0 |
| ireland | | micrasterias truncata | species | 1 | 0 |
| malaysia | | cosmarium laeve | species | 1 | 0 |
| malaysia | | sphaerozosma granulatum | species | 1 | 0 |
| malaysia | sarawak | micrasterias radians var. bogoriensis | varietas | 2 | 0 |
| norway | | micrasterias rotata | species | 3 | 0 |
| norway | oppland county | xanthidium antilopaeum | species | 2 | 0 |
| pakistan | | cosmarium sp. zaa3 | species | 1 | 0 |
| united kingdom | | micrasterias truncata | species | 1 | 0 |
| united kingdom | wales | micrasterias thomasiana | species | 1 | 0 |
| united states | | micrasterias rotata | species | 4 | 0 |
| united states | florida | micrasterias laticeps | species | 1 | 0 |
| united states | massachusetts | micrasterias americana | species | 2 | 0 |
| united states | massachusetts | micrasterias furcata | species | 1 | 0 |
| united states | massachusetts | micrasterias laticeps | species | 1 | 0 |
| united states | massachusetts | micrasterias papillifera | species | 2 | 0 |
| united states | massachusetts | micrasterias radiosa | species | 1 | 0 |
| united states | massachusetts | micrasterias rotata | species | 1 | 0 |
| united states | massachusetts | micrasterias swainei | species | 1 | 0 |
| united states | massachusetts | micrasterias tetraptera | species | 1 | 0 |
| united states | massachusetts | xanthidium antilopaeum | species | 2 | 0 |
| united states | minnesota | micrasterias crux-melitensis | species | 1 | 0 |
| united states | minnesota | micrasterias crux-melitensis var. crux-melitensis | varietas | 1 | 0 |
| united states | minnesota | micrasterias furcata | species | 1 | 0 |
| united states | minnesota | micrasterias laticeps | species | 1 | 0 |
| united states | north carolina | micrasterias fimbriata var. spinosa | varietas | 1 | 0 |
| united states | north carolina | micrasterias furcata | species | 1 | 0 |
| united states | north carolina | micrasterias furcata var. gracillima | varietas | 1 | 0 |
| united states | north carolina | micrasterias laticeps | species | 1 | 0 |
| united states | north carolina | micrasterias muricata | species | 1 | 0 |
| united states | texas | micrasterias mahabuleshwarensis var. dichotoma | varietas | 1 | 0 |
| venezuela | | micrasterias decemdentata | species | 1 | 0 |
| venezuela | merida | micrasterias novae-terrae | species | 1 | 0 |
| venezuela | merida | micrasterias pinnatifida | species | 1 | 0 |
| venezuela | merida | micrasterias truncata var. neodamensis | varietas | 1 | 0 |