| SCIENTIFIC NAME: | PARMELIA SAXATILIS |
| VERNACULAR NAME: | CROTTLE |
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| Fig 1 |
| DESCRIPTION | Foliose. The greenish, flattened lobes are covered with numerous fine white lines and rod-like outgrowths known as isidia. The isidia are only found in mature plants. |
| DISTRIBUTION | Very common throughout. |
| HABITAT | Trees, walls and rocks except at high altitudes. |