Observation 91087: Buellia triseptata A. Nordin

When: 2012-03-17

Collection location: Planalto das Cezaredas, Portugal [Click for map]

Who: zaca

No specimen available

This observation refers to the lichen with grey thallus and black apothecia.
It is the first time I encountered a Buellia with 3-septate spores, having the following average dimensions: Me = 17.2 × 8.5 µm ; Qe = 2 (N=26).


Chemical reactions;
Apothecial section;
Asci and spores.

Proposed Names

74% (2)
Eye3 Eyes3
Used references: CNALH.
Based on microscopic features

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I was looking …
By: zaca
2016-05-09 16:19:48 CDT (-0400)

to the K reaction of this specimen and it has no value, since the colour is dark-grey or blackish. Something went wrong!
The paper of Giralt et al. 2010 refers two chemotypes, both corresponding to specimens found at the north part of my country, whereas this specimen was observed at the center of Portugal.

Thanks, J-Dar, for the information;
By: zaca
2016-05-08 15:39:27 CDT (-0400)

I will look to the paper you mention and try to recover the data of this observation.

By: J-Dar
2016-05-07 12:43:59 CDT (-0400)

Giralt et al. 2010. A New Chemotype of Buellia triseptata (Physciaceae) describes this species well, with both chemotypes showing K+ reactions. I couldn’t see your photo well enough to see if you got K+? The new chemotype they describe is based on collections from Portugal, in the mountains of the northwest part of the country, at 700 meters. I’m curious how this specimen lines up with their described chemotypes! A pdf of the paper is online at Researchgate.

Thanks to Jason …
By: zaca
2012-03-29 12:03:54 CST (-0500)

I could read the article mentioned in my last message. The authors present a description of the species Buellia triseptata based on material collected in the Iberian peninsula. I believe that my sample is consistent with this description, at least in part I observed. However, there are two points of doubt, in relation to a chemical reaction that did not seem to be those mentioned therein, and the other towards the habitat. This specimen was collected in an area whose altitutude does not reach the 200m, where once the vegetation was most abundant Quercus coccifera, but has given way to agricultural land at the site of observation remains a small cluster of trees, but some maybe of other species that I could not identify.

I can get you that paper
By: Jason Hollinger (jason)
2012-03-28 13:29:37 CST (-0500)

I’ll “send you a question” in a second because I don’t think I have your email address…

By: zaca
2012-03-28 13:01:08 CST (-0500)

The following paper studies Buellia triseptata in the Iberian peninsula. Unfortunately, I could only read the abstract, since I have no access to the Journal where it was published.

Mireia Giralt and Anders Nordin (2002). Buellia Triseptata in the Iberian Peninsula. The Lichenologist, 34 , pp 89-94 doi:10.1006/lich.2002.0375


It is easy, …
By: zaca
2012-03-27 19:04:34 CST (-0500)

there is none in the portuguese checklist. Hahaha!

That’s something you don’t see every day!
By: Jason Hollinger (jason)
2012-03-27 18:59:29 CST (-0500)

A Buellia with triseptate spores. How about that!

Created: 2012-03-27 15:23:12 CST (-0500)
Last modified: 2016-05-07 12:38:17 CDT (-0400)
Viewed: 292 times, last viewed: 2018-01-14 23:09:05 CST (-0500)
Show Log