When: 2019-04-30

Collection location: Igreja Nova, Mafra, Portugal [Click for map]

Who: zaca

No specimen available

Notes:
See the notes of Observation 366830.
Teprhomela atra is known to be easely confused with Lecanora gangaleoides, the two species sharing the same kind of habitats. At least , for the first time I realized, the two species shared this habitat.

Images

Chemical reactions.
Microscopy: Apothecial sections (x100, in water);
Microscopy: Apothecial sections – reaction to KOH (x100).

Proposed Names

87% (1)
Based on microscopic features

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= Observer’s choice
= Current consensus

Comments

Add Comment
Apothecial sections added.
By: zaca
2019-05-18 17:31:29 -05 (-0500)
Be careful with generalizations, J-Dar.
By: zaca
2019-05-18 17:29:02 -05 (-0500)

Clearly, your thesis does not apply.

Shiny black disks
By: J-Dar
2019-05-18 16:37:00 -05 (-0500)

Here in California I find Tephromela atra has really shiny black epruinose disks, which fairly confidently separates it from Lecanora gangaleoides at a glance. At least that’s my preliminary theory! Doesn’t look like that holds true across the Atlantic…