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07-05-2026 11:02

Ã…ke Widgren Ã…ke Widgren

Hello,About two months ago I found a strange Delit

05-05-2026 22:40

Gernot Friebes

Hi,I believe this is a Plagiostoma growing on a Sa

06-05-2026 11:25

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) re

06-05-2026 17:23

Thomas Læssøe

https://svampe.databasen.org/observations/10594257

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

04-05-2026 18:13

Stephen Martin Mifsud Stephen Martin Mifsud

ID request for what seems to be a true aquatic fun

04-05-2026 16:39

Stephen Martin Mifsud Stephen Martin Mifsud

ID request: This specimen was collected in Malta o

28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

04-05-2026 09:50

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,(España) re

03-05-2026 11:38

Castillo Joseba Castillo Joseba

Me mandan el material seco, recolectado en dunasLo

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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!