Bryoria implexa is a species of horsehair lichen in the family Parmeliaceae.
Habit Bryoria implexa has a dark brown or olive colour. The thallus is cylindrical and hairlike, 5–10 cm long and hanging. The main branches are 0.2-0.3 mm in diameter but the narrower branches are 0.1 mm.Flóra Íslands [Flora if Iceland] (no date). Gálgaskegg - Bryoria implexa. (in Icealndic) Retrieved 14 April 2021.
Distribution and habitat The native distribution of Bryorya implexa is North-America and Europe, including Iceland where it has only been found in one location, Gálgahraun in Álftanes, where its preferred habitat is lava rock. In Nepal, Bryoria implexa has been reported from 3,700 to 4,000 m elevation in a compilation of published records.
Conservation status Bryoria implexa is red listed in Iceland as critically endangered (CR) due to it being found in only one location in the country.Náttúrufræðistofnun Íslands [Icelandic Institute of Natural History] (1996). Válisti 1: Plöntur. (in Icelandic) Reykjavík: Náttúrufræðistofnun Íslands. The species is extinct (EX) in Britain.Woods, R. G., & Coppins, B. J. (2012). A Conservation Evaluation of British Lichens and Lichenicolours Fungi. Powerprint.
As of April 2021, its conservation status has not been estimated by the IUCN.
Chemistry Bryoria implexa contains norstictic acid.
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