Summary ²

Dolichousnea longissima, Old Man's Beard or Methuselah's Beard Lichen, is a lichen in the family Parmeliaceae. It was previously known as Usnea longissima.

Sources and Credits

1. (c) Arthur Chapman, some rights reserved (CC BY-NC-SA), http://www.flickr.com/photos/32005048@N06/3996179605
2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Dolichousnea_longissima

More Info

• iNat taxon page
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Global Biodiversity Information Facility (GBIF)
• Mushroom Observer
• SEINet Symbiota portals

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