The word LICHEN has appeared in at least 12 clues on different crosswords.
| Clue(s) |
|---|
| Source of litmus |
| Rock fungus |
| Rock cover |
| Moss's kin |
| Growth on a tree |
| Forest growth |
| Arctic moss |
| Rock fungus |
| Reindeer moss, for instance |
| Moss's kin |
| Rock fungus |
| Rock cover |