Observation 212322: Dirina fallax De Not.

When: 2015-08-08

Collection location: Óbidos, Portugal [Click for map]

Who: zaca

No specimen available

Growing on the walls of a monument.
For this I have no clue.

Proposed Names

29% (1)
Recognized by sight
58% (1)
Eye3 Eyes3
Recognized by sight
Used references: Lichenes maritimi Armoricae.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: zaca
2015-08-10 14:35:59 PDT (-0700)

I had already noticed that the margin of this specimen is very similar to that of Dirina massiliensis f. sorediata but I was not aware of the existence of another species of Dirina with a sorediate form that differs from the first in the coloration (highly variable according to substratum and exposure: grey-brownish, greyish, ochre often tinged brown-purple, darker in exposed situations as is the case here) and by having a often rimose to verrucose thallus: the species is Dirina fallax and the form is f. sorediata. In the reference given there is plenty of information about this species and its connections to other similar species (just follow the internal links at this website).

Created: 2015-08-09 17:07:05 PDT (-0700)
Last modified: 2015-08-10 14:35:03 PDT (-0700)
Viewed: 20 times, last viewed: 2017-06-20 10:47:28 PDT (-0700)
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