| Order | Family | Genus | Species |
|---|---|---|---|
| Bryopsidales | 10 | 40 | 979 |
| Chaetopeltidales | 2 | 7 | 15 |
| Chaetophorales | 6 | 19 | 147 |
| Chlamydomonadales | 20 | 115 | 2088 |
| Chlorellales | 3 | 88 | 1482 |
| Chlorocystidales | 1 | 3 | 40 |
| Chlorodendrales | 1 | 3 | 233 |
| Chloropicales | 1 | 2 | 20 |
| Chlorosarcinales | 1 | 4 | 102 |
| Cladophorales | 8 | 39 | 641 |
| Dasycladales | 2 | 10 | 39 |
| Dolichomastigales | 2 | 3 | 13 |
| Ignatiales | 1 | 3 | 6 |
| Mamiellales | 2 | 5 | 217 |
| Marsupiomonadales | 2 | 4 | 7 |
| Microthamniales | 1 | 2 | 11 |
| Monomastigales | 1 | 1 | 10 |
| Nephroselmidales | 1 | 1 | 37 |
| Oedogoniales | 1 | 3 | 127 |
| Oltmannsiellopsidales | 1 | 2 | 6 |
| Pedinomonadales | 1 | 1 | 8 |
| Picocystales | 1 | 1 | 9 |
| Prasiolales | 3 | 27 | 344 |
| Pseudoscourfieldiales | 2 | 2 | 34 |
| Pyramimonadales | 4 | 5 | 148 |
| Scotinosphaerales | 1 | 1 | 11 |
| Scourfieldiales | 1 | 1 | 4 |
| Solotvyniales | 1 | 1 | 1 |
| Sphaeropleales | 19 | 101 | 1754 |
| Sykidiales | 1 | 1 | 3 |
| Tetrasporales | 4 | 4 | 15 |
| Trebouxiales | 1 | 9 | 1738 |
| Trentepohliales | 1 | 5 | 517 |
| Ulotrichales | 9 | 25 | 134 |
| Ulvales | 8 | 30 | 933 |
| Watanabeales | 1 | 12 | 227 |