found: Work cat.: ITIS, Aug. 23, 2005(Genus Hypogymnia (Nyl.) Nyl. Family Parmeliaceae)
found: Plants national database, Aug. 23, 2005(Hypogymnia (Nyl.) Nyl., tube lichen; lists 23 species, all with tube lichen as common name or part of common name. Family Parmeliaceae)
found: Index fungorum, via WWW, Aug. 23, 2005(Hypogymnia. Parmeliaceae)
found: World of lichen website, Aug. 23, 2005:lichen images (Hypogymnia. This lichen is leaf-like with grayish-green coloration on top and is black below. It can be confused with Parmelia, but Hypogymnia has hollow, tube-like lobes. Hypogymnia is usually found on conifers (needle-leaf trees) and sometimes rocks.)
found: Foliose lichens, via BC Biodiversity website, Aug. 23, 2005(Beaded Bone, Hypogymnia enteromorpha; Tickertape Bone Lichen, Hypogymnia duplicata; Forking Tube Lichen, Hypogymnia imshaugii)