Observation 166018: Cetraria aculeata (Schreber) Fr.
When: 2014-05-24
Who: zaca
No herbarium specimen

Notes: I remember to find once a Cetraria sp., in sensu lato, which I posted at observation 85615. These specimens are “more of the same”: narrow terete lobes , bushy, shiny, brown (though by the effect of light conditions some specimens appear like bluish) plenty of pycnidia marginal projections without any understandable pattern distibution. However, this are big differences between these and the other specimen: these grow on rock, and there were plenty of them on some of the rocks in a boulder (see the corresponding photo attached), and are located as far from the sea as it is possible here (close to the border with Spain in the middle of the country). Another perceptible difference is that one can see very well in the photos the whitish, rounded and escavate pseudocyphellae that appear on the underside of lobes, as well as long whitish marks. Taking also into account that the main lobes are more flatened than minor ones, I suppose that this as all the features of C. aculeata. Unfortunately I was not able to see any fertile specimen.

Images

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Composition with the specimens observed;
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Section of a main lobe stained with Toloudine blue.

Proposed Names

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Used references: British Flora

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2014-05-27 13:13:33 PDT (-0700)
Last modified: 2014-05-28 01:55:55 PDT (-0700)
Viewed: 19 times, last viewed: 2016-09-03 07:57:55 PDT (-0700)
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