When: 2017-03-25

Collection location: Serra de São Mamede, Portugal [Click for map]

Who: zaca

No specimen available

Notes:
Another one with a strange thallus. After removing the moss on the left, some greyish/greenish coloration appeared contrasting with the dark brown-redish exposed. Some big apothecia are also present.
Warning: Wet specimen!

Images

Microscopy: Asci and paraphyses (x1000, in KOH);
Microscopy: Apothecial section (x100) and close ups (x400, in water);
Microscopy: Apothecial section (x100) and close ups (x400, in KOH);
Microscopy: Hymenium views (x400, in KOH);
Microscopy: (young) Asci and (free) spores (x400, in KOH);
Microscopy: Spores and their dimensions (x1000, in KOH).

Proposed Names

29% (1)
Recognized by sight
29% (1)
Recognized by sight
Based on microscopic features
58% (1)
Recognized by sight: The spore-type and the size of the apothecia, much bigger than in most species in the genus, lead to R. beccariana
Used references: British Flora
Based on microscopic features

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= Observer’s choice
= Current consensus

Comments

Add Comment
Hi J-Dar,
By: zaca
2017-04-06 08:29:57 CDT (-0500)

Thanks for your comment. You are right I should have stated formally my change of opinion, but that is easily understood, I think. Contrary to other observations in Rinodina, in this case the spore-type is not very clear. At the end, I suppose that the better choice is Pachysporaria-type and this changes the target species.
Regarding the distribution of R. beccariana, and independently what the British Flora says (I have not it with me right now, but you will never find there precise data about existence outside the British Islands) I can give you two references (see below) about the existence of that species in my country. Note that the first one is based on material collected at the north part of the country (Oporto is our second bigger city) and the other on material collected at the extreme south (Algarve). My observations of Rinodina are all from the middle part of the country. The first of these references includes some short descriptions of the species found.
By habit, I always try to know a bit more than I can tell.
Best regards,
zaca

References:
G. Paz-Bermúdez & M. Giralt: The Portuguese crustose specimens of the Physciaceae, Caliciaceae excluded, (lichenized ascomycetes) in the PO herbarium (Oporto, Portugal), Sydowia 62 (1): 105–136, 2010.

P. P. G. van den Boom & M. Giralt: Checklist and three new species of lichens and lichenicolous fungi of the Algarve (Portugal), Sydowia 64 (2): 149–208, 2012.

What is the range in W. Europe?
By: J-Dar
2017-04-06 05:06:04 CDT (-0500)

I guess you had a change of thought in regards to this comment?

“Summarizing, no species seem to be reported from western Europe with the features of this specimen.”

At CNALH, the North American lichen herbaria consortium, there is only one collection of this species, from the Canary Islands. I don’t have the British Flora, so was curious what it says about the range of Rinodina beccariana.

Is there an online specimen database like CNALH for Europe?

Microscopy added; Another surprise from Rinodina.
By: zaca
2017-03-31 16:30:27 CDT (-0500)

Unfortunately, due to the weather conditions, not very much can be said about the macro features of this specimen. Certainly it is something new, not only for me, but for this region.
Based on the micro features I could not find nothing similar, either in the British Flora or in the French websites I use regularly, including the following two:
http://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_R.htm
http://www.lichensmaritimes.org/...
In my opinion the spores can be classified as Dirinaria-type or a mixture of this with other types, e.g. Milvina-, Pachysporaria- and Physcia-type. Ruling out the species having predominantly these latter types of spores, some of which I know very well, only the following species are mentioned in the British Flora with such spores:
R. degeliana (sorediate), R. ericina, R. insularis (parasitic) and R. oleae, the latter with a mixture of Dirinaria- and Physcia-type. All of them can also be ruled out, simply on the base of the spores dimensions.
Summarizing, no species seem to be reported from western Europe with the features of this specimen.