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14-04-2026 05:32

Pyrenomycete with yellow subiculum on Aralia
Ethan Crenson

Hi all, A few weeks back a friend pointed out som

14-04-2026 21:52

Thyriothecioid anamorph on Carex elata
Gernot Friebes

Hi,found on dead leaves of Carex elata. Conidia: 4

14-04-2026 20:31

Psilachnum lateritioalbum on Phragmites australis?
Gernot Friebes

Hi,can this be Psilachnum lateritioalbum on Phragm

12-04-2026 17:56

Seeking genus for 1 – 3 septate spored asco. on herb Nepteta cataria (Mint).
Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

12-04-2026 15:52

Anamorph on Salix
Gernot Friebes

Hi,I'm looking for help with this anamorph collect

12-04-2026 12:22

Unknown anamorph on Primula eliator
William Slosse William Slosse

In a dune grassland in Oostduinkerke (Belgium), on

11-04-2026 15:45

Article search - Octospora ithacaensis
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Please, could anyone send me this paper?Moyne G.,

11-04-2026 13:34

Requesting help with Dasyscyphella sp. ID
Artem Ptukha

Hello, I am seeking assistance with the identific

11-04-2026 10:42

Una para ID
Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, España, recolec

11-04-2026 10:19

Bientôt, un nouveau livre important
Michel Hairaud Michel Hairaud

Chers amis d'Ascofrance , voici une très bonne no

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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!