https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/3399636Edit ImageSaveSaveEditCropCustom TextForked Tube Lichen. Hypogymnia imshaugii. Lichen are a type of organism known as an epiphyte, which is a plant that grows non-parasitically on another plant. Original public domain image from FlickrMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseJPEGBanner JPEG 1200 x 800 px | 300 dpiLarge JPEG 1500 x 1000 px | 300 dpiFree DownloadForked Tube Lichen. Hypogymnia imshaugii. Lichen are a type of organism known as an epiphyte, which is a plant that grows non-parasitically on another plant. Original public domain image from FlickrMore