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17-04-2025 15:37

Recherche matériel / Searching for material of Anthracobia macrocystis
Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour.Je suis à la recherche de collections (r

17-04-2025 13:23

Pyrenomycete on or near lichen Lemmopsis lutophila
Jan Eckstein

Hello,there is an interesting collection of a tiny

16-04-2025 08:53

Anamorph on a leaf.
Josep Torres Josep Torres

Hello.An anamorph photographed under holm oaks thi

15-04-2025 15:06

Small white discomycete
Francois Guay Francois Guay

I found this small white disco on decaying deciduo

13-04-2025 22:47

Phaeohelotium fagineum ?
éric ROMERO éric ROMERO

Bonjour, Je sollicite votre avis pour cette colle

15-04-2025 21:39

is there a key for species of the imberbis-group?
Andreas Gminder Andreas Gminder

Dear all,struggeling as every year with the aquati

10-04-2025 10:09

Mollisia on Rubus idaeus
Mathias Hass Mathias Hass

Hi, Found in March on last years stick from Rubus

09-04-2025 19:37

Mollisia 050425 on Cistus ladanifer
Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon This 1-2 mm Mollisia was growing o

14-04-2025 23:19

Small-spored O. flavidobrunneola
Viktorie Halasu Viktorie Halasu

Hello, I've microscoped exsiccate of an Otidea wh

14-04-2025 15:11

Need help with 6 coprophilous species
Lennert Gees

Greetings!For my master's dissertation I work on c

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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