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16-02-2026 18:34

Thierry Blondelle Thierry Blondelle

Bonjour,La micro de cet anamorphe de Hercospora su

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-02-2026 17:14

Joanne Taylor

Last week we published the following paper where w

16-02-2026 17:13

Joanne Taylor

Last week we published the following paper where w

16-02-2026 16:53

Isabelle Charissou

Bonjour, quelqu'un pourrait-il me transmettre un

16-02-2026 00:05

Maren Kamke Maren Kamke

Good evening, I am looking for the following pape

16-02-2026 11:53

Joeri Belis

between leaf litter on twig in young salix growth.

14-02-2026 22:45

Tomaz Vucko Tomaz Vucko

Hy!I would ask for some help determing this specie

13-02-2026 03:30

Tomaz Vucko Tomaz Vucko

Hello! I found these immersed perithecia on a stic

15-02-2026 20:28

éric ROMERO éric ROMERO

Bonjour tous, Un Mollisia qui me pose problème..

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ascomycete with mufiom spores on bark
Stoykov Dimitar, 19-02-2024 08:01
Stoykov DimitarHallo,

Attached are photos of ascomycete finding, from high mountain area, with ascomata in black areas ruptured from bark surface.

Apores are 22-31 × 11-17 µm (27±3 × 14±1.6), Q=1.7-2.2 (1.9±0.2), n=15, broadly ellipsoid, hyaline, murifrorm, thick-walled.
On bark of living tree, alt. ca. 1600 m (montain).
Any suggestions on genus name are welcome.

Thank ypu in advance!

Dimitar
Zdenek Palice, 19-02-2024 20:34
Zdenek Palice
Re : ascomycete with mufiom spores on bark
I am not the expert, but my very brave guess is that your specimen might belong in Triblidiaceae, possibly Pseudographis elatina???.
I myself collected  only P. pinicola few times. But very difficult to say from your photos. The phorophyte also would be of a help. Did you try iodine reaction of ascospores? 
Any way you should ask anybody working with these fungi whether I am not misleading you

Zdenek
Stoykov Dimitar, 21-02-2024 08:35
Stoykov Dimitar
Re : ascomycete with mufiom spores on bark
Thank You Zdenek,
I will check the iodine reaction, i
f possible because the collection is old.
I was mistaken than it is lichenized, but as there are no algae it seems reasonable to be in this fungal group.

Regards,

Dimitar
Stoykov Dimitar, 04-04-2024 16:52
Stoykov Dimitar
Re : ascomycete with mufiom spores on bark
Today I have tested old spores left from section from august 2015 on microscope slide  free and within asci with Lugol's solution. But did not checked if they were coloured with age.
I wil try to section almost  8 years old apothecia, just packed the material on bark into an empty  jar with wet paper at the bottom. Tis photo is just after the test with lugol under LM.
Stoykov Dimitar, 05-04-2024 12:53
Stoykov Dimitar
Re : ascomycete with mufiom spores on bark
I made a microscope slides, from the refreshd collection. So the spores appeared again hyaline, and  muriform. After tstt with Lugol's solution without KOH pretreatment they turned darker (some bluish tint maybe observable.

Dimitar
Alain GARDIENNET, 05-04-2024 16:02
Alain GARDIENNET
Re : ascomycete with mufiom spores on bark
Hi Dimitar,
I agree with Zdenek. Please check if wood is coniferous. And then you can check if it's P. elatina.
http://www.ascofrance.fr/search_recolte/5098
Alain

Stoykov Dimitar, 05-04-2024 20:08
Stoykov Dimitar
Re : ascomycete with mufiom spores on bark
Thank You!
Yes the tree is definitely coniferous - there were Abies in the collection site, I remember since 1993
but could be a Pinus.
Dimitar