Wilson's lichen

例句：

1. 1. The lichen on the rock is a fascinating study of life in extreme environments.
   岩石上的地衣是研究极端环境中生命的精彩案例。
2. 2.Lichens are often used as natural pigments in paints and dyes.
   地衣常被用作油漆和染料的自然色素。
3. 3.In the rainforest, lichens can be found growing on trees and rocks.
   在雨林中，地衣可以在树木和岩石上生长。