Esslinger, TL. 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). 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 . , This lichen is fruticose, with very long stems and short, even side branches. Members of the genus are commonly called old man's beard, or beard lichen. 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. (Parmeliaceae, lichenized Ascomycetes). identification, Usnea longissima, antibacterial. "Fact Sheet: Usnea longissima in Norway." 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. Identification Methuselah's beard is a large, easily recognizable species. , Usnea longissima is found in boreal forests and coastal woodland in Europe, Asia, and North America. Usnea longissima has also been named Dolichousnea longissima, but this is not the currently accepted name for this lichen. It is considered the longest lichen in the world. The genus is in the family Parmeliaceae. Usnea longissima is found in Western Europe and North America. The Plants Database includes the following 1 subspecies of Usnea longissima .Click below on a thumbnail map or name for subspecies profiles. . Taxon 53(4): 925-934. 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 pacificana > Click on Characteristic name for explanation. Usnea Identification There are many species of usnea, all characterized by a stretchy internal “filament” or stem. Click on image for larger version. Articus, K. (2004) Neuropogon and the phylogeny of Usnea s.l.  The stems are usually 15 to 30 cm in length but are sometimes much longer. In North America, it is found along the Pacific Coast from northern California to southern Alaska. INTRODUCTION . (2018) A Cumulative Checklist for the Lichen-Forming, Lichenicolous and Allied Fungi of the Continental United States and Canada, Version 22. Usnea longissima, old man's beard or Methuselah's beard lichen, is a lichen in the family Parmeliaceae. Usnea longissima, old man's beard or Methuselah's beard lichen, is a lichen in the family Parmeliaceae. , The most frequent host of this lichen is spruce trees. The outer cortex can get eroded, which subsequently exposes this white central cord. It has a thicker, unbranched main strand that has a whitish central cord resembling an elastic band. Opuscula Philolichenum 17: 6-268. It is a 'hanging hair' lichen, meaning its network of thin, hair-like branches drapes over and hangs from branches. It is currently on threatened status. Usnea longissima. It grows all over the world. Common Macrolichens of the PNW Home Species List Identification Key Characteristics Color Chart Project Page About < Usnea lapponica. Also known as Methuselah’s beard and old man’s beard, Usnea longissima is a lichen in the family Parmeliaceae (Kingdom Fungi). Indonesia is a tropical country that is rich of various kinds of plants . Usnea is a genus of mostly pale grayish-green fruticose lichens that grow like leafless mini- shrubs or tassels anchored on bark or twigs.