Observation 68692: Parmotrema tinctorum (Delise ex Nyl.) Hale

When: 2011-06-03

Collection location: Parque de Monsanto, Lisboa, Portugal [Click for map]

Who: zaca

No specimen available

The change of color in relation to the specimen in MO68509 – bluish-grey and almost white at the margins of lobes, without a trace of green – initially made me thought that it was another species and, maybe even, another genus. But it seems that these changes are possible within the same species.


Chemical reactions (on the left) and underside of lobes.

Proposed Names

-29% (1)
Used references: Irish lichens.
Based on chemical features: See attached photos.
58% (1)
Eye3 Eyes3
Recognized by sight: See comments.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
In fact,
By: zaca
2011-06-06 14:15:11 PDT (-0700)

this is the second time that I confuse Parmotrema tinctorum with Parmelina pastilifera (see MO52255 ). Thanks, Jason, for the correction.

By: Jason Hollinger (jason)
2011-06-06 14:01:29 PDT (-0700)

It also has C+ red medulla, and broad rounded lobes with abundant evenly-distributed granular isidia just like this. It can grow on either bark or rock.

Created: 2011-06-06 13:45:10 PDT (-0700)
Last modified: 2011-06-06 14:25:11 PDT (-0700)
Viewed: 60 times, last viewed: 2017-06-09 11:37:31 PDT (-0700)
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