Observation 175666: Pertusaria heterochroa (Müll. Arg.) Erichsen
When: 2014-08-21
Who: zaca
No herbarium specimen

Notes: Similar to the one in observation 163519 with the difference of having a C- reaction, instead of a weak C+ orange, and also a weak KC+ orange reaction. The result of the application of the key in the paper cited there (repeated here for convenience) is the same: Pertusaria heterochroa. It is characterized by having asci with two spores each, the KC+ orange reaction, striated spores and reacts C- in hymenium, in which it differs from P. dispar with hymenium C+ red. In this specimen, the striation of the spores is remarkable in some of them.
A particularity of this specimen is that its thallus is being invaded by Sphinctrina tubiformis, causing the fallen of the verrucas, leaving pits on the thallus. In this respect it is similar to the one in observation 163571.

Images

450228
450229
450230
450231
Chemical reactions;
450232
Microscopy: Apothecial section;
450233
Microscopy: Part of apothecial section and spores
450234
Microscopy: Asci and spores;
450235
Microscopy: Spores.

Proposed Names

86% (1)
Eye3 Eyes3
Used references: 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

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
No one has commented yet.

Created: 2014-08-31 15:14:44 CEST (+0200)
Last modified: 2014-08-31 15:14:53 CEST (+0200)
Viewed: 24 times, last viewed: 2016-10-25 05:09:36 CEST (+0200)
Show Log