[2], Usnea longissima is found in boreal forests and coastal woodland in Europe, Asia, and North America. Taxon 53(4): 925-934. Members of the genus are commonly called old man's beard, or beard lichen. It is a 'hanging hair' lichen, meaning its network of thin, hair-like branches drapes over and hangs from branches. [5], The most frequent host of this lichen is spruce trees. The outer cortex can get eroded, which subsequently exposes this white central cord. Common Macrolichens of the PNW Home Species List Identification Key Characteristics Color Chart Project Page About < Usnea lapponica. Usnea is a genus of mostly pale grayish-green fruticose lichens that grow like leafless mini- shrubs or tassels anchored on bark or twigs. Usnea longissima, old man's beard or Methuselah's beard lichen, is a lichen in the family Parmeliaceae. It is currently on threatened status. identification, Usnea longissima, antibacterial. [citation needed]. It grows on old trees, deciduous or coniferous, including on this nearly 100 year old pear in the Dosewallips river delta of western Washington [picture needed]. Usnea Identification There are many species of usnea, all characterized by a stretchy internal “filament” or stem. Nov 08, 1996. http://sweetgum.nybg.org/science/op/biblio_details.php?irn=480859, http://www.toyen.uio.no/botanisk/bot-mus/lav/factshts/usnelong.htm, http://www.lichen.com/bigpix/Ulongissima.html, https://en.wikipedia.org/w/index.php?title=Usnea_longissima&oldid=926063999, Articles with unsourced statements from March 2018, Taxonbars using multiple manual Wikidata items, Creative Commons Attribution-ShareAlike License, This page was last edited on 14 November 2019, at 01:04. Esslinger, TL. (Parmeliaceae, lichenized Ascomycetes). Indonesia is a tropical country that is rich of various kinds of plants [1]. The Plants Database includes the following 1 subspecies of Usnea longissima .Click below on a thumbnail map or name for subspecies profiles. Identification Methuselah's beard is a large, easily recognizable species. The genus is in the family Parmeliaceae. [4] The stems are usually 15 to 30 cm in length but are sometimes much longer. Opuscula Philolichenum 17: 6-268. Usnea longissima has also been named Dolichousnea longissima,[1] but this is not the currently accepted name for this lichen. Usnea pacificana > Click on Characteristic name for explanation. "Fact Sheet: Usnea longissima in Norway." Approximately 30,000 species of plants are very helpful and some of them had been used by the people as the medicine ingredients and had been consumed sustainably and hereditary for a long time based on the traditional experiences [2]. In North America, it is found along the Pacific Coast from northern California to southern Alaska. Articus, K. (2004) Neuropogon and the phylogeny of Usnea s.l. Also known as Methuselah’s beard and old man’s beard, Usnea longissima is a lichen in the family Parmeliaceae (Kingdom Fungi). Usnea longissima. Usnea longissima, old man's beard or Methuselah's beard lichen, is a lichen in the family Parmeliaceae. Click on image for larger version. Usnea longissimais pale greenish or silvery-yellowish-green, fruticose and pendulous; main branches are cylindric, up to 3 meters or more in length and very rarely dividing, with numerous dense, short perpendicular side branches and fibrils of about equal length (3-40 mm). It has a thicker, unbranched main strand that has a whitish central cord resembling an elastic band. Usnea longissima is found in Western Europe and North America. One can take a strand of the yellowish-green to gray grey lichen and pull away at the outer coating (cortex) to reveal a whitish, elastic cord. It grows all over the world. (2018) A Cumulative Checklist for the Lichen-Forming, Lichenicolous and Allied Fungi of the Continental United States and Canada, Version 22. [3], This lichen is fruticose, with very long stems and short, even side branches.