usnea (dolichousnea longissima, u. barbata and u. californica)

wood wilderness wild usneomyces usnea undefined tree tillandsia thallus texture tai symbiosis spores spermatogonium recurvata plant photosynthesis outdoor old neuropogon nature moss medicinal macro linchen lichens lichen herb hanging growing green fungus fungi forest flora environment diaphoranthema dasypogus dasypoga cosmetics cornuta closeup bright branch botany beautiful beard bark background ascogonium anging algae