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12-07-2020 17:42

Juuso Äikäs

I found a lot of these growing gregariously on dea

12-07-2020 21:17

BERNARD CLESSE BERNARD CLESSE

Bonsoir à toutes et à tous,Que pensez-vous de ce

12-07-2020 19:23

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur bois mort décortiqué, immergé dan

12-07-2020 16:30

Gilbert MOYNE

Bonjour, Une récolte qui me pose quelques probl

09-07-2020 00:39

Valencia Lopez Francisco Javier

Hola a todosEncontré este curioso ascomycete a me

07-07-2020 13:34

Sergey Markov

I found this peziza sp. on loamy soil - on the gro

10-07-2020 17:50

Garcia Susana

Hola, Me gustaría vuestra ayuda para identificar

08-07-2020 00:01

Shane John

I would ask the indulgence of the group to perhaps

08-07-2020 16:47

Chris Yeates Chris Yeates

Bonjour tous While searching for the downy mildew

10-07-2020 14:26

Thomas Læssøe

Anybody in the know of eg Pseudoneottispora?See: 

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Mollisia on Cornus
Enrique Rubio, 22-11-2019 09:41
Enrique RubioHi again
This Mollisia grew on corticated branches of Cornus, 2 cm thick, lying on the ground. The apothecia are minute, coalescent, whitish, amber colour or grayish when old.
The ascospore are (0-)1-septate, even inside the living asci, arising from croziers, with an apical pore dirty red, rb, even after NH4OH-pret. (I didn't have KOH to do it).
The paraphyses, as the narrowly clavate marginal cells, have somewhat inconspicuous refractive VBs that stain in cresyl blue. Ectal excipulum with pale brownish textura angularis.
Do you have any ideas that might help me?
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Michel Hairaud, 22-11-2019 10:29
Michel Hairaud
Re : Mollisia on Cornus

Bonjour Enrique,


The macro suggests that there would be a short stipe and the excipulum has some prismatica textura , at least under the margin. My first guess would go for a Calycina. Did you exclude this genus ?


Amitiés.


Michel

Enrique Rubio, 22-11-2019 10:54
Enrique Rubio
Re : Mollisia on Cornus
Bonjour Michel
Non. Je n'exclude pas Calycina. Je pense que c'est une bonne alternative. Mais l'excípulum est formé par des cellules plutôt polygonales, seulement plus prismatiques vers les flancs de la fructification. Et en plus, tout l'excípulum possède pigmentation et pas seulement la partie la plus basale du même, comme il arrive habituellement en Calycina.
Andreas Gminder, 22-11-2019 11:28
Andreas Gminder
Re : Mollisia on Cornus
Hello,


I would exclude Mollisia, because the shape of the vacuoles in the paraphyses does not fit Mollisia and also the spores bearing conidia is in my experience not known in Mollisia. The excipular structure doesn't fit well too.

Calycina would also be my first choice to search.

best regards,
Andreas
Thomas Læssøe, 22-11-2019 14:00
Re : Mollisia on Cornus
spore shape as in C. vulgaris
Hans-Otto Baral, 22-11-2019 15:32
Hans-Otto Baral
Re : Mollisia on Cornus
Enrique, could you please send me the plates in higher resolution? I wonder about the browinsh excipulum.
Hans-Otto Baral, 22-11-2019 20:30
Hans-Otto Baral
Re : Mollisia on Cornus
Now, I am not sure about this fungus. No Mollisia I agree. Pezizellaceae is possible. I finally placed it in Leptodontidium, as it seems to resemble finds that are there in the folder carneum. In that folder I have what I earlier identified as Phaeohelotium subcarneum, with hemiamyloid apical rings.
Enrique Rubio, 22-11-2019 20:42
Enrique Rubio
Re : Mollisia on Cornus
Thank you, Zotto
Do you have literature on Leptodontidium? For example the generic definition of the genus, Leptodontidium de Hoog, that seems to be in Taxon 28(4): 347 (1979)
Hans-Otto Baral, 22-11-2019 21:42
Hans-Otto Baral
Re : Mollisia on Cornus
You must be aware that the genus was erected for a couple of anamorphs, and it was DNA by which I discovered that Phaeohelotium trabinellum is the teleomorph of L. elatius. These anamorphs are inconspicuous brown setae with minute phialoconidia. This group is a field for future work, and without further DNA tests I fear we will not solve it.