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10-09-2012 20:38

Peter Thompson

Hello Everyone,I have been trying to find informat

11-09-2012 09:41

Cacialli Gabriele Cacialli Gabriele

Bounjour aux amis d'Ascofrance... Pour une monogra

10-09-2012 20:33

Enrique Rubio Enrique Rubio

Hello my friendsI present you a new problem with t

08-09-2012 21:24

Enrique Rubio Enrique Rubio

Hi againThis fungs has superficial, gregrious, pyr

09-09-2012 18:12

Enrique Rubio Enrique Rubio

Hi to everybody:On a copious and cottony white su

09-09-2012 00:04

Esquivel-Rios Eduardo

Hi all.This small specimen was found in the  soil

08-09-2012 16:09

Peter Welt Peter Welt

Search magazine articles two: Documents Mycologiq

08-09-2012 01:35

Esquivel-Rios Eduardo

Hi all.Here a curious ascomycete , found growing i

06-09-2012 21:23

Chris Yeates Chris Yeates

Bonsoir touswhile putting together the 'fungus por

28-08-2012 11:49

Bernard Declercq Bernard Declercq

Bonjour,Qui pourrait me fournir une bonne descript

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bitunicate ascomycete on wood in rivulet - Lophiostoma?
Lothar Krieglsteiner, 09-08-2020 22:18
Lothar Krieglsteiner... the spores of this find (today, in the Eifel, Germany, on decorticate decideous wood, likely Alnus, in a rivulet) remind me of Lophiostoma - but he ascomata are not laterally compressed. The asci are quite long, ca. 100-120/10-13 µm, the spores about 25-32/6-7 µm large, with conspicuous oil drops. Old and dead spores tend to become brown, living spores are hyaline.
Who can provide me with a hint?
Best regards, Lothar
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Josep Torres, 10-08-2020 08:43
Josep Torres
Re : bitunicate ascomycete on wood in rivulet - Lophiostoma?
Hola Lothar.
Por opinar algo, aunque las esporas son un poco grandes, me parece apreciar una vaina mucosa, quizás Lophiostoma vagabundum, dejo un par de enlaces;

http://www.centrodeestudiosmicologicosasturianos.org/?p=10561
http://www.ascofrance.com/forum/14453/lophiostomataceae-again-on-syringa

Saludos cordiales
Eduard Osieck, 10-08-2020 11:22
Re : bitunicate ascomycete on wood in rivulet - Lophiostoma?
You may want to consider Massarina corticola and Amniculicola parva. The latter grows on submerged wood (described from Alnus) and stains the underlying wood sometimes purple. Did you note a gelatinous sheath?
Eduard
Lothar Krieglsteiner, 10-08-2020 15:56
Lothar Krieglsteiner
Re : bitunicate ascomycete on wood in rivulet - Lophiostoma?
Hello Josep and Eduard,
thank you both for your proposals - three ones :-)
I did not note a purple stain of the wood, nor did I note a gelatinous spore sheath, but maybe the latter I possibly overlooked. I will try to examine again.
Best regards and thanks again,
Lothar
Lothar Krieglsteiner, 19-01-2023 14:04
Lothar Krieglsteiner
bitunicate ascomycete on wood in rivulet - Amniculicola parva
Hello Josep and Eduard,
today I re-examined the sample and compared with all three of your proposals. 
After all, I come to the conclusion that Amniculicola parva is the right choice.
Spore length and septation, spore sheath (present!), asci, peridium structure, macroscopical appearance of ascomata, and last not least the ecology are perfectly fitting. The only obstacle is the color of the wood which is not stained red, but this is not obligatory.
Thanks again to you both and best regards, Lothar