Observation 206103: Pertusaria pertusa (Weigel) Tuck.
When: 2015-06-06
Who: zaca
No herbarium specimen

Notes: Another of the common species of Pertusaria living on bark (mainly of old trees). Some of the thalli were parisited by a lichenicolous fungi (Sphinctrina sp.) to be considered at another observation.

Images

526335
526336
Note that there are two other Pertusaria spp. on the right of this photo, one of which is P. albescens (top).
526337
Thallus of Pertusaria pertusa parasitized by a Sphinctrina spp..
526422
Microscopy: Section;
526423
Microscopy: Spores.

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Microscopy added.
By: zaca
2015-06-08 23:06:31 BST (+0100)

Spores:
(136.3) 136.9 – 238.4 (238.6) x (53.6) 53.9 – 63.5 (67.7) µm
Q = (2.5) 2.6 – 3.8 (4.1) ; N = 10
Me = 196.1 × 60.1 µm ; Qe = 3.3

Created: 2015-06-08 15:31:23 BST (+0100)
Last modified: 2015-06-08 23:05:04 BST (+0100)
Viewed: 23 times, last viewed: 2016-10-20 21:48:33 BST (+0100)
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