Observation 75369: Usnea Dill. ex Adans.

When: 2011-08-25

Collection location: Aporo, Michoacan, Mexico [Click for map]

Who: Byrain

No specimen available

On a fallen stick, coniferous if I recall correctly. I think the scary photographer pictures have already been uploaded…

Proposed Names

28% (1)
Recognized by sight
77% (2)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Danny Newman (myxomop)
2011-09-05 15:15:08 PDT (-0700)
lovely lichen.
By: Debbie Viess (amanitarita)
2011-09-05 10:51:00 PDT (-0700)
By: Jason Hollinger (jason)
2011-09-04 13:22:56 PDT (-0700)

That much we can be sure of. :) In all seriousness, we can narrow it down to a small handful of species. But since you’re so far out of my geographic range, I hate to go on record saying anything with certainty.

For more info
By: Byrain
2011-09-04 13:00:10 PDT (-0700)

Bug Alan, I think he still has it. :)

Also, what genus does “U.” refer to?

Looks a lot like U. parvula / U. cirrosa
By: Jason Hollinger (jason)
2011-09-04 12:50:46 PDT (-0700)

It’s a tough genus, though. Things you’d need: color of medulla and central axis (sort of a rubber band-like consistency); K, C, KC tests on medulla; presence of papillae (“goosebumps”) on the surface of the main branches; texture of the medulla (U. parvula, for example, has a dense outer medulla and loose cottony inner layer). Probably one or two other things depending on the answers to these questions, but that’d be a good start. Dissecting microscope is highly recommended. (As is patience! :)

Created: 2011-09-04 12:16:03 PDT (-0700)
Last modified: 2011-09-05 11:57:01 PDT (-0700)
Viewed: 181 times, last viewed: 2017-06-09 18:33:00 PDT (-0700)
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