| australia | | closterium ehrenbergii | species | 9 | 0 |
| china | | closterium sp. fachb-326 | species | 1 | 0 |
| denmark | | closterium ehrenbergii | species | 4 | 0 |
| france | | closterium ehrenbergii | species | 3 | 0 |
| japan | | closterium calosporum var. galiciense | varietas | 1 | 0 |
| japan | | closterium ehrenbergii | species | 56 | 0 |
| japan | | closterium moniliferum var. moniliferum | varietas | 9 | 0 |
| japan | | closterium moniliferum var. submoniliferum | varietas | 13 | 0 |
| japan | | closterium pleurodermatum | species | 1 | 0 |
| japan | | closterium selenastrum | species | 1 | 0 |
| japan | | closterium sp. nies-52 | no rank | 1 | 0 |
| japan | | closterium spinosporum var. crassum | varietas | 1 | 0 |
| japan | | closterium spinosporum var. ryukyuense | varietas | 1 | 0 |
| japan | | closterium spinosporum var. spinosporum | varietas | 1 | 0 |
| japan | | closterium wallichii | species | 1 | 0 |
| japan | aichi prefecture | closterium spinosporum var. spinosporum | varietas | 2 | 0 |
| japan | okinawa prefecture | closterium calosporum var. galiciense | varietas | 2 | 0 |
| japan | okinawa prefecture | closterium selenastrum | species | 2 | 0 |
| japan | okinawa prefecture | closterium spinosporum var. crassum | varietas | 3 | 0 |
| japan | okinawa prefecture | closterium spinosporum var. ryukyuense | varietas | 2 | 0 |
| japan | saitama prefecture | closterium peracerosum-strigosum-littorale complex | species | 2 | 0 |
| japan | yamagata prefecture | closterium ehrenbergii | species | 2 | 0 |
| malaysia | | closterium ehrenbergii | species | 6 | 0 |
| malaysia | | closterium spinosporum var. malaysiense | varietas | 1 | 0 |
| malaysia | pahang | closterium spinosporum var. malaysiense | varietas | 2 | 0 |
| nepal | | closterium acerosum | species | 1 | 0 |
| nepal | | closterium calosporum var. himalayense | varietas | 1 | 0 |
| nepal | | closterium ehrenbergii | species | 15 | 0 |
| nepal | | closterium gracile | species | 1 | 0 |
| nepal | | closterium incurvum | species | 1 | 0 |
| nepal | | closterium moniliferum var. moniliferum | varietas | 4 | 0 |
| nepal | | closterium navicula | species | 1 | 0 |
| nepal | | closterium peracerosum-strigosum-littorale complex | species | 2 | 0 |
| nepal | | closterium pusillum var. maius | varietas | 1 | 0 |
| nepal | | closterium tumidum | species | 1 | 0 |
| nepal | | closterium venus | species | 1 | 0 |
| slovakia | bratislava region | closterium peracerosum-strigosum-littorale complex | species | 4 | 0 |
| south africa | | closterium ehrenbergii | species | 4 | 0 |
| south korea | | closterium ehrenbergii | species | 15 | 0 |
| united kingdom | | closterium ehrenbergii | species | 2 | 0 |
| united states | | closterium calosporum var. calosporum | varietas | 1 | 0 |
| united states | | closterium ehrenbergii | species | 15 | 0 |
| united states | | closterium moniliferum var. moniliferum | varietas | 2 | 0 |
| united states | vermont | closterium calosporum var. calosporum | varietas | 2 | 0 |
| vietnam | | closterium ehrenbergii | species | 1 | 0 |
| vietnam | ho chi minh city | closterium ehrenbergii | species | 2 | 0 |
| vietnam | ho chi minh city | closterium moniliferum var. moniliferum | varietas | 3 | 0 |