| Answer | Crossword Clue |
|---|---|
| DIATOM | Form of algae |
| NOSTOC | Genus of algae. |
| DIATOMS | Types of algae |
| REDTIDES | Invasions of certain algae. |
| SEAMOSS | Type of red algae |
| SCUMTOFEAR | Terrifying strains of algae? |
| PADINA | Genus of fan-shaped algae. |
| NOSTOC | Genus of blue-green algae. |
