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Blue Felt Lichen (Degelia plumbea) Links

Previous Sightings by mes

Thumbnail ImageAmerican bald eagle on December 31, 2015
Thumbnail ImageBlue Felt Lichen (Degelia plumbea) on December 31, 2015

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Contributors » mes » Blue Felt Lichen (Degelia plumbea)

Blue Felt Lichen (Degelia plumbea) discovered by mes (#8607)

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Sighting Info

Observed: July 30, 2016 @ 2:00 PM
Posted on: July 31, 2016 @ 11:41 AM (diff: 1 days)
Comments:
Previously reported seeing Degelia p. in Sir Robert Bond Park, Whitbourne, but that was the related and much more common Lobaria querzicans (according to Ian Houdie). The correct sighting was of multiple thalli on different trees, probably maple but species uncertain. Degelia found in among growths of both Lobaria querzicans and Lobaria plombaria, also one or two growths on isolated sections of tree. Formal count not done but at least half a dozen trees, some with multiple Degelia thalli.

Sighting's Identification

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Newfoundland Nature

Newfoundland Nature

Comments by Site Members (scroll to post comment)

By Elijah on 8/6/2017 7:47:01 PM

Sometimes, while walking through the woods, I see a green growth hanging on the branches. I've always called the growths "old man's beard", and they often grow among lichen. Are they an individual type of lichen, a feature of another type of lichen, or something completely different? If you need to know what it looks like, I can take a picture and post it the next chance I get to see some. 

By mes on 8/6/2017 8:13:19 PM

I am just learning the lichens myself, but the most common greenish stuff hanging off tree branches is indeed a lichen, old man's beard or Usnea longissima (now renamed Dolichousnea longissima apparently). It contains usnic acid, a natural antibiotic, as well as other medicinal compounds used in some traditions. However there are a couple other lichens that look similar close up, but don't have the same hanging off tree growth pattern. Another lichen that hangs off branches but is finer and brown is tree hair, or Bryoria.

By Elijah on 8/7/2017 4:01:41 PM

I searched it up, and that's the same type of growth. I think it might be a different species because I've never seen it grow that long in Newfoundland. I've only seen then a few inches long. Thanks for the helpful info! 

By Mac Pitcher on 1/18/2018 7:50:55 PM

Degelia plumbea is abundant in Bond Park. In a 2006 survey there I inventoried over 600 individuals on less than thirty trees of four species. This significant population is probably the largest single concentration of this species anywhere in North America. Otherwise it occurs quite sparingly, mostly on Yellow Birch, throughout NF.

By mes on 1/18/2018 8:41:28 PM

Neat. Last summer I hunted a bit for boreal felt lichen (Erioderma) but didn't find it, it's even rarer and locations are somewhat guarded.

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