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30-10-2016 20:46

Christopher Engelhardt Christopher Engelhardt

today, yellowish flat cups on cow dungSpores 26-29

28-10-2016 21:52

Malcolm  Greaves Malcolm Greaves

Can someone help with this "Hymenoscyphus" sp.Foun

31-10-2016 08:46

Martin Pastircak

Hi to all,I would appreciate if someone has this a

27-10-2016 21:19

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco blanco q

30-10-2016 01:39

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que hemo

28-10-2016 03:55

M Jonathan M Jonathan

very small Scutellinia (2mm) from rotten Maple woo

30-10-2016 12:12

Ueli Graf Ueli Graf

Hello,does anyone know this Ascobolus? I've found

30-10-2016 13:39

Enrique Rubio Enrique Rubio

Hi again This Arachnocrea species grew on the hym

29-10-2016 09:53

Christopher Engelhardt Christopher Engelhardt

In a N Germany valley we did find these Pezizas so

29-10-2016 07:29

Alan Rockefeller Alan Rockefeller

What did I find today?

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Didymosphaeriaceae (?) on Ulmus branch
Enrique Rubio, 08-02-2017 20:38
Enrique RubioHi again
I have found on fallen branches broken by the wind, these small (500-870 microns high, up to 100 microns broad), pyriform, subepidermial or inmersed on the wood, somewhat glabrous pseudothecia, solitary or arranged in fused groups, on Ulmus minor. The fungus seems to be xerophilous, because only the fall of the branches allowed me to see it.
The asci I think are not unitunicate, although that is not easy for me, with a variable numeber of ascospores (often 8). Pseudoparaphyses narrowly trabeculate. Ascospores yellowish, brownish, brownish-black, uniseptate (secondarily septate at maturity), heteromorphic, with clearly longitudinaly striate walls, sometimes sub-reticulate. Pseudothecial inner walls with hyaline prismatic or roundish cells.
I think could be near to Didymosphaeria, because the pseudothecia are not arranged in Valsoid-type as in the Valsariales.
Have you some idea for me?
Many thanks again
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  • message #47102
  • message #47102
  • message #47102
Paul LEROY, 08-02-2017 22:41
Re : Didymosphaeriaceae (?) on Ulmus branch
Salut Enrique,

A moins d'une révision plus récente que la documentation en ma possession, ce spécimen semble convenir pour Didymosphaeria massarioides Saccardo & Bruneau.
Paul
Enrique Rubio, 09-02-2017 00:44
Enrique Rubio
Re : Didymosphaeriaceae (?) on Ulmus branch
Bonsoir Paul
Je pense que tu as la raison, et qui mon champi semble convenir avec ce nom
Merci beaucoup par ton amicale aide