Genus: Euastrum
| Species | Artsinfo | Localities | Observations | Last observation |
|---|
| Euastrum sp. | | 13 | 22 | 1996-09-25 |
| Euastrum cf. elegans | | 4 | 8 | 1994-06-10 |
| Euastrum verrucosum | | 4 | 7 | 1994-09-28 |
| Euastrum elegans | | 4 | 6 | 1993-10-04 |
| Euastrum cf. binale | | 4 | 6 | 1993-09-16 |
| Euastrum pulchellum | | 4 | 4 | 1994-09-12 |
| Euastrum cf. didelta | | 3 | 5 | 1994-09-12 |
| Euastrum insulare | | 2 | 2 | 1994-09-08 |
| Euastrum cf. insulare | | 1 | 1 | 1989-09-08 |
| Euastrum cf. gemmataum | | 1 | 1 | 1989-08-24 |