Observation 175887: Aspicilia A.Massal.

When: 2014-09-01

Collection location: Beaver Co., Pennsylvania, USA [Click for map]

Who: Bob Zuberbuhler (Bob Z)

No specimen available

Lichen found on a fence rail.

Proposed Names

-17% (2)
Recognized by sight
46% (2)
Recognized by sight: To the lichen on the right on both photos.
56% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
You make me thought …
By: zaca
2014-09-02 15:30:35 PDT (-0700)

that I was dreaming. As you know better than anyone else in MO is not easy to infer only from photos the classification of lichens (or fungi, in general). Sometimes, one tries to use his own experience to establish patterns and completely fails.

It looks like physical damage to me
By: Jason Hollinger (jason)
2014-09-02 15:17:14 PDT (-0700)

But, I definitely see the resemblance to Diploschistes, too, and a parasite causing the discoloration is very plausible.

Yeah maybe you are right, Jason
By: zaca
2014-09-02 14:53:41 PDT (-0700)

The fact is that apothecia are not focussed in the photos, which led me to think of Diploschistes. Maybe I was suggested by my recent observations.
Do you have any explanation for the change of tallus colour on the left (or on the right) hand side of photos?

Interesting idea, zaca!
By: Jason Hollinger (jason)
2014-09-02 11:18:17 PDT (-0700)

But Aspicilia spp. are extremely common in these parts. (Unfortunately!) I think that’s more likely.

I´m wondering …
By: zaca
2014-09-01 09:58:11 PDT (-0700)

if the lichen on the left on the photos is not an Acarospora sp.. I have encountered similar phenomena of parasitizing of a Diploschistes by an Acarospora (see e.g. observation 89121 and observation 128937).

Created: 2014-09-01 08:01:56 PDT (-0700)
Last modified: 2014-09-02 11:16:58 PDT (-0700)
Viewed: 38 times, last viewed: 2017-06-18 15:45:08 PDT (-0700)
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