Observation 215647: Pertusaria pustulata (Ach.) Duby
When: 2015-09-05
Who: zaca
No herbarium specimen

Notes: Growing on wood, more precisely on the wood of a park bench. When I saw the specimens I recall to have observed it before, more than two and a half years. I found the photos of that observation and I attach them at the end. As can been seen the coloration of the specimens are rather different now.

Images

555079
Microscopy: Asci in water-2;
554588
554589
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The park bench; Every whitish mark on it is a specimen of Pertusaria.
554591
2013-02-10: Composition of photos of my previous observation of this Pertusaria.
555075
Chemical reactions on thallus under the microscope; K+ and KC+ yellow-orange;
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Chemical reaction to K on epithecium: K+ violet intensifying
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Microscopy: Sections;
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Microscopy: Asci in water-1;
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Microscopy: Asci in water and floxine;
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Microscopy: Spores in water.

Proposed Names

29% (1)
Based on chemical features: C-, K- or K+ pale yellow, KC+ yellow
58% (1)
Eye3 Eyes3
Used references: Ref. 1: British Flora – Smith et al., The Lichens of Great Britain and Ireland, The British Lichen Society, 2nd ed., 2009.
Ref. 2: Monserrat Boqueras and Xavier Llimona: The Genus Pertusaria (Lichenised Ascomycotina) on the Iberian Peninsula and Balearic Islands. I Subgenus Pertusaria, Mycotaxon 88: 471-492, 2003.
Based on microscopic features
Based on chemical features

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Microscopy added; Unexpectedly, pertusaria pustulata again.
By: zaca
2015-09-09 15:45:44 EDT (-0400)

Spores:
(77.1) 78.2 – 96.3 (108.1) x (33.3) 35.2 – 44 (46.1) µm
Q = (1.8) 1.9 – 2.6 (3) ; N = 20
Me = 85.5 × 38.9 µm ; Qe = 2.2 .

Created: 2015-09-07 18:59:21 EDT (-0400)
Last modified: 2015-09-09 15:47:21 EDT (-0400)
Viewed: 24 times, last viewed: 2016-10-23 14:00:33 EDT (-0400)
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