| Answer | Crossword Clue |
|---|---|
| MOSSES | Tree growths |
| ANNULI | Yearly tree growths |
| MOSSES | Tree-trunk growths |
| MOSSES | Tree trunk growths |
| BURLS | Tree-trunk growths |
| LICHENS | Growths on rocks or tree trunks |
| LICHENS | Growths on tree trunks or rocks |
| lichens | an organism that is formed by the symbiotic association of a fungus and an alga or cyanobacterium and occurs as crusty patches or bushy growths on tree trunks, bare ground, etc. Lichens are now classified as a phylum of fungi (Mycophycophyta) |
