Observation 208640: Alyxoria varia (Pers.) Ertz & Tehler
When: 2015-07-03
Collection location: Sintra, Portugal [Click for map]
Who: zaca
No herbarium specimen

Notes: Growing on a man made structure, a mixture of stones and cement.
The lirellae at the center of the thallus in the first photo present a very curious feature: the discs are exposed like it happens in some species of Graphis (e.g. G. scripta) and I never saw in Opegrapha.

Proposed Names

58% (1)
Recognized by sight
86% (1)
Eye3 Eyes3
Used references: British Flora
Based on microscopic features

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Microscopy added.
By: zaca
2015-07-07 13:30:42 PDT (-0700)

Spores:
(20.3) 21.2 – 26.3 (27.1) x (5) 5.1 – 6.7 (7.1) µm
Q = (3.4) 3.6 – 4.5 (5) ; N = 22
Me = 24.6 × 6.1 µm ; Qe = 4

It seems that the feature emphasized in the notes is a common feature of this species, according to the British Flora.

Created: 2015-07-03 16:58:17 PDT (-0700)
Last modified: 2015-07-07 13:27:00 PDT (-0700)
Viewed: 26 times, last viewed: 2016-10-28 01:24:30 PDT (-0700)
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