| Answer | Crossword Clue |
|---|---|
| MOSSY | Overgrown with lichens. |
| MOSSY | Covered with lichens |
| MOSSIER | More covered with lichens. |
| ALGAE | With fungi, they form lichens |
| cryptogamic | (of a desert soil or surface crust) Covered with or consisting of a fragile black layer of cyanobacteria, mosses, and lichens, which is often important in preventing erosion |
| tundra | a level or rolling treeless plain that is characteristic of arctic and subarctic regions, consists of black mucky soil with a permanently frozen subsoil, and has a dominant vegetation of mosses, lichens, herbs, and dwarf shrubs |
