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27-07-2015 20:41

Leandro Sánchez Leandro Sánchez

Sur branche de feuillus (Salix au côté)Spores 9,

27-07-2015 21:32

Dartanha Soares Dartanha Soares

Hi,Found this fungus on decorticated angiosperm wo

27-07-2015 21:04

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I found this Genea in Abkhazia (Great Caucas

27-07-2015 18:16

Michel RIMBAUD

Bonjour,J'ai récolté ce petit asco sur tige mort

27-07-2015 14:48

Leandro Sánchez Leandro Sánchez

Sur tige d'ombellifèreAsques 33-38/4-5, croziers

26-07-2015 16:17

Steve Clements

Salut,Après avoir lu la clé de Bernard Declercq

26-07-2015 13:38

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo fotos de una Peziza que encont

24-07-2015 17:04

Matthias Theiss

Hello,I'd like to show a Microglossum-like ascomyc

25-07-2015 01:57

Lepista Zacarias

2015-07-18 Pyreno on leaves Hi everyone, Maybe s

25-07-2015 07:55

Maren Kamke Maren Kamke

Hi everybody,I thought of M. typhicola, but the as

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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
  • message #47102
  • 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