| Order | Family | Genus | Species |
|---|---|---|---|
| Bryopsidales | 10 | 40 | 942 |
| Chaetopeltidales | 2 | 7 | 14 |
| Chaetophorales | 6 | 19 | 144 |
| Chlamydomonadales | 20 | 114 | 1942 |
| Chlorellales | 5 | 87 | 1477 |
| Chlorocystidales | 1 | 3 | 40 |
| Chlorodendrales | 1 | 3 | 229 |
| Chloropicales | 1 | 2 | 19 |
| Chlorosarcinales | 1 | 5 | 102 |
| Cladophorales | 8 | 39 | 621 |
| Dasycladales | 2 | 10 | 38 |
| Dolichomastigales | 2 | 3 | 12 |
| Ignatiales | 1 | 3 | 6 |
| Mamiellales | 2 | 5 | 216 |
| Marsupiomonadales | 2 | 3 | 6 |
| Microthamniales | 1 | 3 | 11 |
| Monomastigales | 1 | 1 | 10 |
| Nephroselmidales | 1 | 1 | 35 |
| Oedogoniales | 1 | 3 | 89 |
| Oltmannsiellopsidales | 1 | 2 | 6 |
| Pedinomonadales | 1 | 1 | 8 |
| Picocystales | 1 | 1 | 9 |
| Prasiolales | 3 | 27 | 339 |
| Pseudoscourfieldiales | 2 | 2 | 32 |
| Pyramimonadales | 4 | 5 | 148 |
| Scotinosphaerales | 1 | 1 | 11 |
| Scourfieldiales | 1 | 1 | 4 |
| Solotvyniales | 1 | 1 | 1 |
| Sphaeropleales | 19 | 96 | 1734 |
| Sykidiales | 1 | 1 | 3 |
| Tetrasporales | 2 | 4 | 15 |
| Trebouxiales | 1 | 9 | 1731 |
| Trentepohliales | 1 | 6 | 513 |
| Ulotrichales | 8 | 26 | 125 |
| Ulvales | 9 | 29 | 930 |
| Watanabeales | 1 | 13 | 223 |