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23-03-2024 14:21

Pavel Jiracek

On dead stems of Broom (Cytisus), Scotland.Many 1-

23-03-2024 07:47

Vasileios Kaounas Vasileios Kaounas

Diameter 1-2 mm, in Sonchus sp. probably. Asci 49

22-03-2024 19:40

Robin Isaksson Robin Isaksson

Hi!This one i did found on salixSpores 5-6.5 x2.5-

22-03-2024 18:48

Juuso Äikäs

These pyrenos were growing on a fallen branch of A

21-03-2024 21:19

Eduard Osieck

Could somebody provide a copy of the following pap

12-01-2024 15:31

Lothar Krieglsteiner Lothar Krieglsteiner

.. from the "Oberpfalz", Germany, hanging twig of

21-03-2024 11:16

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia, (España) 

20-03-2024 14:51

Lothar Krieglsteiner Lothar Krieglsteiner

... from Slovakia, Muranska planina sw. Polomka, 1

12-01-2024 12:31

Lothar Krieglsteiner Lothar Krieglsteiner

... collected already 2014, 16.12. Alentejo, in a

19-03-2024 15:22

Lothar Krieglsteiner Lothar Krieglsteiner

... from Croatia, June 2013. After finding I had b

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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