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08-12-2019 11:01

Gilbert MOYNE

Bonjour, Un petit champignon que m'a remis Andgel

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Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que hemo

07-12-2019 18:45

Laurens van der Linde Laurens van der Linde

Hallo i found the P atrovinosa with a slime specie

06-12-2019 19:49

Edvin Johannesen Edvin Johannesen

Hi! Tiny, black, oblong stromata with pure white

27-11-2019 16:54

Rasmus Riis-Hansen Rasmus Riis-Hansen

Hi,I hope you can help med with this disc found a

05-12-2019 09:06

Valencia Lopez Francisco Javier

Hola amigosEstoy buscando este trabajo de la Errot

05-12-2019 19:35

Ibai Olariaga Ibarguren

Dear colleagues, I was wondering if anyone could

19-11-2019 18:05

Lothar Krieglsteiner Lothar Krieglsteiner

... under a twig of deciduous tree (likely Quercus

29-06-2011 22:52

Luc Bailly Luc Bailly

Encore trois ascos de la réserve naturelle domani

04-12-2019 13:01

Mirek Gryc

Hello everyoneI inform you in advance that this is

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Hymenoscyphus (?) on Quercus wood
Enrique Rubio, 27-11-2012 19:35
Enrique RubioHi to all:
My friend F.J. Balda have sent to me from Navarra (NE of Spain) this rare fungus that grows on semirotten wood of Quercus.
The ascomata are shortly stipitate by a short and stout pseudostipe and they are up to 2 mm in diam. 
The hymenium seems to be reddening with the age.
The spores are very polimorphic and up to 1-(2-3) septate at maturity. At the moment of the study they have septa inside the living asci.
Asci IKI b of the Hymenoscyphus-type, Without croziers. Only repetitive false croziers or abortive croziers at their base. Paraphyses with multiguttulate Vb's.
Ectal excipulum made of a brownish textura globuloso-angularis or only angularis. Medullary excipulum textura intricata.


I feel my fungus is close to Hymenoscyphus. What's your opinion?
Many thanks again  
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Hans-Otto Baral, 27-11-2012 20:28
Hans-Otto Baral
Re : Hymenoscyphus (?) on Quercus wood
Wonderful!! This resembles my Hymenoscyphus "griseobrunneus" but that has smaller spores which are aspetate in the living asci. also true croziers.

H. fulvidulus comes closer in spore size but differs likewise.

But now I see I know your species from photos taken by Uwe Lindemann & Dirk Wischollek from a specimen from NW-Germany, on Rubus. Everything seems to fit!

Here you can study it:
http://www.ascofrance.fr/search_forum/9692?

Zotto
Enrique Rubio, 27-11-2012 20:45
Enrique Rubio
Re : Hymenoscyphus (?) on Quercus wood
Yes, Zotto. I think this is the same fungus!
Do you need my photos at higher resolution?


Many thanks for your quickly help
Hans-Otto Baral, 27-11-2012 20:46
Hans-Otto Baral
Re : Hymenoscyphus (?) on Quercus wood
Yes, you can send me.

thanks
DirkW, 30-11-2012 11:01
DirkW
Re : Hymenoscyphus (?) on Quercus wood
hello enrique and zotto,

great to see this strange fungus again! the multi constricted septae are also there. with the greyisch-blue colours and the dark margo it looks like a hybris out of hymenoscyphus and mollisia. you could name it hymenoscyphus mollisius, if you publish! ;-)
unfortunately we failed to get another collection  ... but now we know one thing: its not restricted to rubus - and not to quercus!

best

dirk
Enrique Rubio, 30-11-2012 12:16
Enrique Rubio
Re : Hymenoscyphus (?) on Quercus wood
Hi Dirk

I think Pachydisca could be a good genus for it, if this genus can be segregated of Hymenoscyphus.


Regards
Nicolas VAN VOOREN, 30-11-2012 14:10
Nicolas VAN VOOREN
Re : Hymenoscyphus (?) on Quercus wood
Je ne pense pas que le genre Pachydisca Boud. puisse être utilisé (le cas échéant) car il est typifié par Helotium guernisacii P. Crouan & H. Crouan qui, si ma mémoire est bonne, est considéré comme un Rutstroemia par Mme Le Gal
Hans-Otto Baral, 30-11-2012 14:53
Hans-Otto Baral
Re : Hymenoscyphus (?) on Quercus wood
Yes, Nicolas, the type (guernisacii) was classified in Rutstroemia by Le Gal, but I think it does not belong there. LeGal described an external gel which is reminiscent of the genus Discinella. Very complicated nomenclature!

And yes, Hymenoscyphus or Phaeohelotium mollisioides ?could be a good name.

Zotto