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05-04-2024 15:26

Pierre-Yves Julien

Bonjour à tous,Récolte le 31/03/2024 – Somme (

07-04-2024 20:49

B Shelbourne B Shelbourne

Another species that appears easy to identify from

12-04-2024 12:22

B Shelbourne B Shelbourne

Orbilia xanthostigma, sensu Baral (2020). • Hab

09-05-2010 20:06

Marja Pennanen

I found these on Epilobium. They are about 0,1-0,

11-04-2024 08:53

Viktorie Halasu Viktorie Halasu

Hello, does anyone know a collection of Dendrosto

05-09-2019 11:03

Simon Kennedy

I would be grateful, if anyone could let me have a

11-04-2024 16:30

Laurent LENEL Laurent LENEL

Bonjour à tous, j'ai récolté quelques morilles

09-04-2024 15:29

ruiz Jose antonio

Hola a todos,recolectada en zona de ribera, con hi

09-04-2024 21:40

Simon Gurtner Simon Gurtner

Good evening found on 25.03.2024 in Bern, Switzer

09-04-2024 13:13

Castillo Joseba Castillo Joseba

Me mandan elmaterial seco de Galicia (Espsaña), r

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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