Observation 91628: Pertusaria pustulata (Ach.) Duby

When: 2012-03-31

Collection location: Marteleira, Lourinhã, Portugal [Click for map]

Who: zaca

No specimen available

Average dimensions of the spores: Me = 84 × 28.6 µm ; Qe = 3 (N=18).


Chemical reactions;

Proposed Names

29% (1)
Recognized by sight
47% (2)
Eye3 Eyes3
Recognized by sight: warts low and broad, not constricted at base at all
Used references: best candidate from British Flora
Based on microscopic features: spores approx. right size
Based on chemical features: apparent C- is bothersome, but the KC+ indicates some sort of xanthone-like substance

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I agree, there is no alternative!
By: zaca
2012-04-03 16:35:51 EDT (-0400)
“Faintly ornamented”?
By: Jason Hollinger (jason)
2012-04-03 15:28:50 EDT (-0400)

I could have sworn there was an excellent photo of a spore of this species showing a gentle wavy texture, but I can’t find it now. Most sources claim P. pustulata has outright smooth spores, others admit the possibility of “faint ornamentation”. Of course there’s every reason to suspect additional species in Iberica not in Britain!

What about the wavy spores?
By: zaca
2012-04-03 14:37:36 EDT (-0400)

Created: 2012-04-03 14:19:00 EDT (-0400)
Last modified: 2012-04-03 16:36:15 EDT (-0400)
Viewed: 60 times, last viewed: 2017-06-12 21:40:12 EDT (-0400)
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