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01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

30-10-2025 03:53

Ethan Crenson

Hi all,  I would like an opinion on whether this

09-08-2025 13:13

Maria Plekkenpol Maria Plekkenpol

Hello,Yesterday I found these on burnt soil. Apoth

29-10-2025 19:02

Castillo Joseba Castillo Joseba

De la pasada semana en rama posiblemente de hayaPi

25-11-2016 13:54

Stephen Martin Mifsud Stephen Martin Mifsud

Hi, I found numerous seeds of Washingtonia robusta

28-10-2025 22:22

Bernard Declercq Bernard Declercq

Hello.I'm searching for the following paper:Punith

27-10-2025 19:51

Peter Welt Peter Welt

Who has this article? Doveri, F. 2007. Sporormiel

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

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Disco on bark of Pinus sylvestris
Gernot Friebes, 09-02-2015 13:25
Hi,

I recently found this species on the bark of a living Pinus tree. Unfortunately the material is not in good shape because the apothecia are either old and decayed or too young without any free ascospores... But I am hoping that someone might recognize it regardless.

At first I tought that this species might be Cenangium ferruginosum but the micros do not fit. I attach a few photos. The first two show the apothecia. Even after rehydration they wouldn't open more than those on the first pic.
Pictures 3 and 4 show paraphyses.
Picture 5 shows an ascus with ascospores which appear to have an acute end.
Pictures 6 and 7 show the same ascus but with a different focus to give you an idea of what the ascospores look like.
Picture 8 shows a brown substance at the bottom of the hymenium.
Pictures 9-11 show asci and paraphyses in IKI (asci are IKI-).
Picture 12 shows what I think is a dead ascospore.
Picture 13 shows the excipulum with patches of a dark brown substance.
Pictures 14 to 16 show the hairs.

Best wishes,
Gernot
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Raúl Tena Lahoz, 09-02-2015 13:40
Raúl Tena Lahoz
Re : Disco on bark of Pinus sylvestris
Hi Gernot
I will try to be quicker than Zotto ;-)
Compare with Crumenulopsis pinicola. What was the Pinus species?
Cheers,
Raúl
Gernot Friebes, 09-02-2015 13:57
Re : Disco on bark of Pinus sylvestris
Hi Raúl,

that seems to be a very good suggestion, thanks!

The tree was Pinus sylvestris, I wrote it in the title. :-)

Best wishes,
Gernot
Raúl Tena Lahoz, 09-02-2015 14:31
Raúl Tena Lahoz
Re : Disco on bark of Pinus sylvestris
Sorry, I overlooked it! I also found it on Pinus sylvestris bark.
Raúl
Till Lohmeyer, 09-02-2015 20:31
Re : Disco on bark of Pinus sylvestris
Hallo, Gernot, 

I found C. pinicola only once, back in 2004 (15th of February), on bark of a dead but still upright trunk of Pinus sylvestris, and it took me several days to find a name for the collection. As it turned out, good old Heinrich Rehm (in Rabenhorsts Kryptogamen-Flora, 1896) opened my eyes with one of his rare illustrations. Later on the descriptions by Leopold Ettlinger (Beitr. Krypt.fl. Schweiz 10 (1), 1945) - who didn't at all like Rehm's interpretation of the species - and J. W. Groves (Can. J. Bot. 47, 1969, pp. 47-51 supported the determination.

Who knows any more recent descriptions of C. pinicola?

Schöne Grüße!
till