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07-04-2012 16:30

Paul LEROY

Bonjour Luc,D'aprés tes images et en particulier

06-04-2012 01:55

Chris Yeates Chris Yeates

Some years ago I collected a fungus on Equisetum p

05-04-2012 14:05

Hermine Lotz-Winter Hermine Lotz-Winter

Hello everyone,A friend of mine, Stefanie Rudolph,

04-04-2012 14:26

Björn Wergen Björn Wergen

Chère collegues,I have found this small Diaporthe

03-04-2012 17:50

Enrique Rubio Enrique Rubio

Hi to all:We have collected on hare dung these  v

28-03-2012 19:17

Raúl Tena Lahoz Raúl Tena Lahoz

Hi all!A friend has collected this Mollisia on Fag

02-04-2012 21:15

Gernot Friebes

Hi,a colleague is looking for page 85 of the work

02-04-2012 01:23

Chris Yeates Chris Yeates

Hello everyoneI have collected a 'coelomycete' on

01-04-2012 10:06

Miguel Ãngel Ribes Miguel Ángel Ribes

I am trying to send a mail to Jacques but it is re

01-04-2012 13:52

Alessio Pierotti Alessio Pierotti

In PI ho trovato le exsiccata di tre specie di que

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Lophiostomataceae on Ambrosia
Enrique Rubio, 24-07-2023 18:38
Enrique RubioSome time ago Joseba Castillo asked us about a pyrenomycete found on roots of Ambrosia artemisiifolia (Asteraceae). The pseudothecia are more or less spherical, immersed, with an superficial apical papilla often laterally compressed. The asci are bitunicate and the spores hyaline or subhyaline, with several transverse septa, with a larger cell and a conspicuous gelatinous sheath clearly visible in dilute India ink. From all this it looks like a member of the family Lophiostomataceae. Do you have any ideas that might help us.
Many thanks in advance
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Josep Torres, 24-07-2023 23:55
Josep Torres
Re : Lophiostomataceae on Ambrosia
Hola Enrique, no entiendo mucho de estas, pero la morfología esporal, la vaina gelatinosa que envuelve a la espora y la materia interascal que creo apreciar en la cuarta imágen, seguramente voy a decir una tontería, así que no me hagas mucho caso, pero me recuerdan a Amniculicola.
Un abrazo.
Enrique Rubio, 25-07-2023 12:17
Enrique Rubio
Re : Lophiostomataceae on Ambrosia
Thank you very much Josep.
I have never been able to study any Amniculicola species, but it seems to be a genus of freshwater pyrenomycetes characterised by their fusiform, hyaline, two-celled ascospores, constricted at the median septum, surrounded by an irregular hyaline gelatinous sheath. And these characters do not match those of this collection.