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15-03-2018 19:10

Claude Kaufholtz-Couture Claude Kaufholtz-Couture

Bonjour, Je recherche la publication suivante :

13-03-2018 12:13

Guy Garcia

Bonjour, je recherche la publication de BENEDIX

13-03-2018 09:47

Jean-Louis JALLA Jean-Louis JALLA

BonjourHier « au sol », un champignon qui me pos

14-03-2018 19:06

Jan-Arne Mentken

Hello everyone,in recent days I found this anamorp

14-03-2018 19:17

Blasco Rafael Blasco Rafael

Hola necesito de su ayuda para llegar a conocer es

14-03-2018 18:17

Michel RIMBAUD

Bonjour,L'année dernière j'avais déjà abandonn

10-03-2018 08:47

Vasileios Kaounas Vasileios Kaounas

Found 09-03-18, in a burned forest of Pinus halepe

10-03-2018 11:50

Vasileios Kaounas Vasileios Kaounas

Found in flower of Pinus halepensisVery small 0,5-

12-03-2018 19:11

Garcia Susana

Encontrados sobre madera de chopo (populus nigra).

11-03-2018 16:57

Sven Heinz Sven Heinz

Hello together,is this Sporormiella pilosa? I am n

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On Abies alba. Dothideo?
Pavol Palo, 28-11-2016 18:56
Hello,

this fungus (black 0,5-1mm) was found on a dead fallen branches of Abies alba. I do not know the genus / species.


Spores: hyaline dictyospores with (1-3)4-5 horizontal and 0-1 vertical septa
18-27 x 6-10 µm


Thank you for your help,
Pavol

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Peter Püwert, 28-11-2016 19:26
Peter Püwert
Re : On Abies alba. Dothideo?
Hello Pavol,
in my opinion is this
Curreya pityophila (J.C. Schmidt & Kunze) Arx & E. Müll., Stud. Mycol. 9: 80 (1975)
Synonymy:
Cucurbidothis pityophila (J.C. Schmidt & Kunze) Petr., Annls mycol. 19(3-4): 201 (1921)
Cucurbitaria pityophila (J.C. Schmidt & Kunze) De Not. [as 'pithyophila'], Sfer. Ital.: 60 (1863). After IF, see also Database.
I search the species for a long time, however, she has not thought yet.
Greetings Peter.
Alain GARDIENNET, 29-11-2016 07:20
Alain GARDIENNET
Re : On Abies alba. Dothideo?

Hi Pavol,


Just some questions :


could you describe ascomata ? Are they sphaerical (or conchate ?) ? Do they collapse when dry ? We don't see very well with pictures.


Could you also give more informations about hamathecium ?


Described ascospores alone are not enough to name a fungus.


Alain


 

Pavol Palo, 29-11-2016 19:57
Re : On Abies alba. Dothideo?
Hi Alain,
ascomata are not sphaerical (I can not shoot better so I'll try to draw a picture). It is quite strong and even after drying, keeps its shape.
Pavol

p.s. Ostreola formosa ?
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Björn Wergen, 03-12-2016 12:59
Björn Wergen
Re : On Abies alba. Dothideo?
Hi Pavol,

this is clearly not Curreya pithyophila, which has globose and clustered ascomata. Your recolt indeed seems to fit Ostreola formosa, which was described by Barr as having spores around 15-21x6,5-9,5µm.

Is it possible to receive a part of this collection for studying?

regards,
björn
Alain GARDIENNET, 03-12-2016 17:05
Alain GARDIENNET
Re : On Abies alba. Dothideo?

It's better !


I thought of course at Mytilinidiaceae.


Alain