Observation 215643: Pertusaria pustulata (Ach.) Duby
When: 2015-09-05
Who: zaca
No herbarium specimen

Notes: Growing on bark.
This observation refers to the lichen on the top of the photo. Below it there are a Lecanora and another Pertusaria.

Images

554935
Microscopy: Ascus in water and floxine;
554613
554929
Microscopy: Chemical reactions on thallus observed under the microscope – K+ and KC+ yellow;
554930
Microscopy: Chemical reactions on epithecium – K+ violet;
554931
Microscopy: Apothecial sections;
554932
Microscopy: Ascus in water;
554933
Microscopy: Asci in water and floxine;
554934
Microscopy: Asci in water and floxine;
554936
Microscopy: Ascus in water and KOH;
554937
Microscopy: Ascus in water and KOH;
554938
Microscopy: Spores in water;
554939
Microscopy: Spores in water and floxine;
554940
Microscopy: Spores in water and KOH;

Proposed Names

58% (1)
Recognized by sight
86% (1)
Eye3 Eyes3
Recognized by sight
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: C-, K+and KC+ yellow on thallus; K+ violet on epithecium.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Microscopy added; Pertusaria pustulata is the most promissing I found.
By: zaca
2015-09-08 22:08:16 BST (+0100)

Spores:
(73.6) 90 – 111.5 (121.8) x (27.6) 31.5 – 43.8 (48.2) µm
Q = (1.8) 2.2 – 3.1 (3.5) ; N = 24
Me = 98.1 × 38.3 µm ; Qe = 2.6

Created: 2015-09-07 23:46:29 BST (+0100)
Last modified: 2015-09-08 22:06:01 BST (+0100)
Viewed: 31 times, last viewed: 2016-04-28 22:54:48 BST (+0100)
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