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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

28-04-2026 20:33

Parasite on Trochila ilicina?
Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

30-04-2026 10:43

Calycina ??
Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia, España, 

30-04-2026 10:28

Lecanicillium tenuipes?
Rot Bojan

Hello, by appearance I would say that I am dealing

27-04-2026 18:48

Micropodia pteridina?
Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 20:52

Mollisia or related genus from Portugal - with quite peculiar character
Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

28-04-2026 22:51

Hyaloscypha sur grosse branche morte de hêtre
Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

29-04-2026 08:01

Karstenia chrysophaea? - from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

... on twig attached to small tree of Citrus auran

29-04-2026 10:44

Boudiera from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

growing at moist, drying-out soil at the side of a

28-04-2026 21:53

Entyloma?
William Slosse William Slosse

Good evening everyone, Recently, in a wet forest,

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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!