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03-10-2025 13:44

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

13-10-2025 19:05

Louis DENY

Bonjour forumSur tronc décortiqué de feuillu x,

17-02-2013 21:11

Peter Welt Peter Welt

Jamoni, P.G. 1998. Un nuovo discomicete coprofilo

11-10-2025 20:27

Marcel Heyligen Marcel Heyligen

Found on a barked branch, 14 mm in diameter, of Ro

11-10-2025 14:20

Jean-Luc Ranger

bonjour à tous, Je ne vois pas comment l'on peut

09-10-2025 22:14

S. Rebecca

We just had the Bavarian Mycology Conference in Au

10-10-2025 00:49

Ethan Crenson

Hello all, This was found last weekend on a hardw

06-10-2025 15:57

David Chapados David Chapados

Hi, Could anyone help me with this Lophiostoma? 

04-10-2025 02:13

Francois Guay Francois Guay

Hi everyone,   I found this Hymenoscyphus growi

03-10-2025 22:17

Francois Guay Francois Guay

Hi everyone,   I found this white, star-shaped

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Endoxyla (?) o Pinus sylvestris wood
Enrique Rubio, 28-10-2014 20:29
Enrique Rubio

Hi to all


My friend F.J. Balda sent me this fungus growing on very wet, semirotten, wood of Pinus sylvestris that makes groups of inmersed and blackish perithecia 0.5-0.6 mm high inside + or - developped blackish stromata. Only the blackish and roundish papilla erumpent.


Asci long-stipitate up to 155 x 9 micr., with a refractive, small, IKI negative apical apparatus. The greenish-brown mature ascospores have a non-septate dark cell with an apical pore and an small hyaline cell under the wich we can to observe a very small hyaline papilla (?).


If this fungus belongs to Endoxyla only E. xanthostroma is close, but the lack of yellowish tissues and the hyaline papilla of the ascospores don't fit with this species.


Any idea?


Thanks again

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Alain GARDIENNET, 28-10-2014 20:57
Alain GARDIENNET
Re : Endoxyla (?) o Pinus sylvestris wood

Hi Enrique,


E. xanthostroma is a good option, you said it. On the fourth photo, we can see yellow tissues, do you agree ?


The other features fit almost well with E. xanthostroma.


Alain

Enrique Rubio, 28-10-2014 21:09
Enrique Rubio
Re : Endoxyla (?) o Pinus sylvestris wood

Hi Alain


Really this is a photographic artefact because there are not yellowish tones in the wood or stromata. By the other hand Untereiner doesn't describe the small but conspicuous hyaline papilla on the ascospores

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Martin Bemmann, 29-10-2014 10:02
Martin Bemmann
Re : Endoxyla (?) o Pinus sylvestris wood
Dear Enrique,

in fact she does mention the "cellula hyalina" (p. 305 and figs. 21-22).

Regards
Martin
Enrique Rubio, 29-10-2014 12:24
Enrique Rubio
Re : Endoxyla (?) o Pinus sylvestris wood

Hi Martin


The hyaline cell was described, and it was drawn by  Untereiner, but not the small hyaline appendage under this cell!