demicolpus

例句：

1. 1. Lichens are a fascinating organism that can survive in extreme environments.
   地衣是一种令人着迷的生物，可以在极端环境中生存。
2. 2.The lichens on the rocks provide important nutrients for the ecosystem.
   岩石上的地衣为生态系统提供了重要的营养。
3. 3. Lichenologists study the symbiotic relationships between lichens and their hosts.
   地衣学家研究地衣与其宿主之间的共生关系。