Lichens were a complex symbiotic combination of algae and fungi.
Due to the long-term close integration of bacteria and algae, regardless of shape, structure, physiology, and genetics, they had formed a unique nature and appearance.
However, Meng Chao was familiar with hundreds of species of lichens in the phylum, but he had never seen such a strange kind of lichen.
It grew extremely fast.
Earlier, Meng Chao had used all his strength to scratch the tree trunk, scraping off the lichen that was up to one centimeter thick, revealing the dark tree trunk beneath.
However, after a few seconds, the lichen on both sides squirmed and covered the tree trunk. A dark green liquid even flowed out, wrapping up the tree trunk at a speed visible to the naked eye.
It was as if Meng Chao's fingers had reached into a green ocean. No matter how hard he stirred, it was impossible to tear a crack in the ocean.
