Source o vanillin, syringic aldehyde, dimethyl sulfoxide, Lignin (Dealkaline) hiki ke extender no phenolic plastics, e hooikaika i ka pulupulu (esp no na kamaa kapu), e like me ka aila lepo additive, e stabilize asphalt emulsions, e precipitate proteins.

ʻO ka hiʻohiʻona holoʻokoʻa o nā lichens i wehewehe ʻia he crustose (hana lākou i kahi ʻōpala lahilahi a palahalaha ma ka substratum), foliose a i ʻole fruticose (kū pololei, nā ʻano lālā, e like me nā kumu lāʻau). Ulu mālie nā lichens mai kekahi mau millimeters a i mau mika i kēlā me kēia makahiki. Hoʻohua nui lākou ma ka ulu ʻana o ka apothecia a i ʻole perithecia, e hana ana i nā lichens hou ma ka germination o nā ascospores wale nō i ke alo o ka hoa algal i ka wā i hala ʻole ai ka haʻiki.
Ma kahi kokoke i 700 mau kemika, he mea kū hoʻokahi i nā lichens, kōkua i nā lichens e ola a pale aku i ka hoʻouka ʻia e nā maʻi bacteria, nā haʻani ʻē aʻe a me nā herbivores ʻai.
No nā kaiāulu lepo ka lichens a kōkua i ka hoʻopaʻa ʻana i ka lepo, ʻoi loa ma nā wahi wao nahele. Hāʻawi ka Cyanolicens i ka hoʻoponopono ʻana i ka nitrogen i ke kaiaola kahi e ulu ai lākou. Hoʻohana ʻia ʻo LicheGare no ka ʻike ʻana i ka makahiki o ka ʻili (kahi e ulu ai lākou) e kahi ʻenehana, i kapa ʻia he lichenometry.
ʻO nā lichens nā hōʻailona haumia ma muli o ko lākou ʻokoʻa ʻokoʻa i ka sulfur dioxide (SO2), nitrogen dioxide (NO2) a me ka ozone, a me ko lākou hiki ke komo a hōʻiliʻili i nā metala kaumaha a me nā radionuclides.
Loaʻa nā mea e like me nā puaʻa, nā meaʻawaʻawa, nā lāʻau'alopelo, a pēlā aku. Hoʻohana ʻia kekahi mau lichens, e like me Iceland moss a me reindeer moss, i meaʻai ma nā ʻāina arctic.