Chlorophyta (Green Algae)
Class: Chrysophyceae
Order: Chromulinales
Family: Chromulinaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Ochromonas triangulata | Vysotskii [Wysotzki, Wyssotzki], 1887 | - | - | Lake Veysove, Ukraine | Rediscovered | Access |
Class: Chlorophyceae
Order: Chlamydomonadales
Family: Volvocaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Volvox perglobator | J.H.Powers | - | (rediscovered) | ? | Rediscovered | Access |
Class: Eustigmatophyceae
Order: Eustigmatales
Family: Eustigmataceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Tetraëdriella subglobosa | Pascher, 1930 | - | - | Lake Mácha, Czech Republic | Rediscovered | Access |
Class: Ulvophyceae
Order: Cladophorales
Family: Anadyomenaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Anadyomene menziesii | Harvey | - | - | Gulf of Mexico | Rediscovered | Access |
Family: Cladophoraceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Chaetomorpha stricta | Schiffner | - | (rediscovered) | Venetian Lagoon, Italy | Rediscovered | Access |
Order: Trentepohliales
Family: Trentepohliaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Trentepohlia afra | Massalongo, 1861 | - | - | Western Cape Province, South Africa | Rediscovered | Access |
| Trentepohlia chinensis | Harvey, 1860 | - | - | South Africa, Tanzania & Zanzibar | Rediscovered | Access |