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28-09-2013 23:32

Alex Akulov Alex Akulov

Dear Friends,Today on the dead fallen branches of

03-10-2013 19:05

Gilbert MOYNE

Voici un Hymenoscyphus qui me pose bien des problÃ

03-10-2013 19:54

Bernard Declercq Bernard Declercq

Good evening,During my recent stay in Portugal, Al

26-09-2013 21:48

Alessio Pierotti Alessio Pierotti

Qualcuna può darmi la mail di Jacques ?Grazie, Al

03-10-2013 09:35

Alessio Pierotti Alessio Pierotti

some friend can help me for this book? Thank you!Â

01-10-2013 10:28

Masanori Kutsuna

Hello everyone.I found small disco on dead stems.

01-10-2013 00:25

Malcolm  Greaves Malcolm Greaves

Can anyone help with this tan coloured asco on woo

29-09-2013 20:02

Enrique Rubio Enrique Rubio

Dear friendsCan you help me with these papers? Y.

01-10-2013 17:09

Luis Ballester Luis Ballester

Hello everyone.We found this Otidea in Cerler days

30-09-2013 22:59

Edit Szilvásy Edit Szilvásy

Hi all, I've found this ascomycete on oak cupules

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Diatrype polycocca on Acer negundo ?
Alex Akulov, 28-09-2013 23:32
Alex AkulovDear Friends,
Today on the dead fallen branches of Acer negundo I have collected interesting Diatrype sample, looking like Diatrype polycocca. Asci are 8-sporous, long stipitate, the length of the sporiferous parts are 51-54 (single 70) micrometers, the width - (6.5) 7,1-10,6 micrometers, the length of stipes are 44-70 micrometers. Ascospores allantoid, smoky-brown, 10,9-11,9 x 2.2-2.4 microns.

Did you know this species?

According available at me information, this species was described on Acer opaca from Switzerland and recently was found on Acer platanoides in Poland and on ? Cornus in France.

Waiting for your answer,
Alex
  • message #25276
  • message #25276
Paul LEROY, 03-10-2013 22:58
Re : Diatrype polycocca on Acer negundo ?
Hello Alex,

Apparemment cette Diatrypaceae pourrait plutôt être: Eutypella leprosa. Cette espèce est
très commune sur arbres feuillus variés et son entostroma blanc conduit plutôt à chercher
vers le genre Diatrype. L'appareil apical est J+ mais est souvent peu visible, même après
prétraitement KOH.
Cordialement
Paul
Alex Akulov, 06-10-2013 15:43
Alex Akulov
Re : Diatrype polycocca on Acer negundo ?
Paul, merci beaucoup pour vos conseils!