Observation 79465: Lichen P. Micheli

When: 2011-09-24

Collection location: Serra de São Mamede, Portugal [Click for map]

Who: zaca

No specimen available

If this is a lichen, and I’m not sure of that, it certainly belongs to some genus that I never found before: Bryoria, Rocella, …?


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Seems unlikely but possible, since there is a Lepraria in one photo.
By: zaca
2011-10-13 15:38:43 PDT (-0700)

There were at least 3 specimens and not side by side.
All the other hypotheses seem a bit strange.

Is it possible this is dead grass covered with Lepraria or other crustose lichen?
By: Jason Hollinger (jason)
2011-10-13 15:13:35 PDT (-0700)

Seems unlikely you’d find three identical tufts, though! Definitely consider Roccella. Maybe even Cladonia, like something vaguely like C. cornuta? There are many species of Roccella with odd fruticose forms. They are all rare and/or highly restricted in range here in southwestern North America. I’ve only ever found one location which had any (location 384). They require very strong maritime presence.