Observation 49495: Verrucaria nigrescens Pers.

When: 2010-08-01

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

Who: zaca

No specimen available

Proposed Names

58% (1)
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Used references: See the comment.

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Verrucaria nigrescens.
By: zaca
2010-08-03 17:17:56 -05 (-0500)

After posting this observation I found a portuguese reference (see here; the text is in portuguese with very nice photos) describing the species Verrucaria nigrescens and is mentioned there that this species is quite common in the country. In addition, as a characteristic feature of it is the green color when wet is referred (see 4th photo attached). Since all the other data agree I’m now convinced that this is the species of my specimen and, accordingly, I propose it to the name of my specimen.

Created: 2010-08-02 13:39:14 -05 (-0500)
Last modified: 2010-08-14 13:38:55 -05 (-0500)
Viewed: 52 times, last viewed: 2017-06-07 21:42:49 -05 (-0500)
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