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23-10-2025 20:59

Patrice TANCHAUD

Bonsoir, est-ce que quelqu'un posséderait un com

24-10-2025 14:50

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Oct. 2025

24-10-2025 03:11

Francois Guay Francois Guay

I found this fungus growing on decaying conifer wo

20-10-2025 09:36

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for the following article:Bene

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

21-10-2025 23:13

F. JAVIER BALDA JAUREGUI

Hello to everyone.Did you think it could, be a pyx

22-10-2025 06:43

Ethan Crenson

Hi all, I'm having some difficulty with this Orbi

22-10-2025 14:45

Lukas Verboom

Dear all,I collected this in the Netherlands, on t

22-10-2025 11:13

Jean-Luc Ranger

Bonjour,  Petites boules plus ou moins sphériqu

21-10-2025 21:25

Philippe PELLICIER

Bonjour,J'ai récolté en septembre sur une litiè

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curious small pyreno on dead salix sprouts
Björn Wergen, 29-02-2012 15:40
Björn WergenHi again,

it is fantastic, everywhere you go, you'll come across with all sorts of ascomycetes. Not so fantastic is my inability to identify these ascomycetes (ah you will see some of my easy identified ascos in the database). Well, here is something strange on old hanging salix sprouts. It has small 80-150µm broad, dark grey pseudothecia which seem to be partly immersed. The pseudothecia wall is about 10-20µm thick and consists of dark cells in textura epidermoidea. 
Spores 14,5-18 (one spore up to 22) x 3-4,5µm, long ellispoid, first with no septa, then with a single one and at maturity with 3 septa, slightly constricted at each septa, hyaline, smooth, filled with small oil drops. Asci 55-60x9-11µm, with 8 spores in a biseriate arrangement, tapered at apex and in result of this mostly fusiform, bitunicate. Paraphyses small cylindrical, with septa, hyalin, mostly brunched especially in basal parts, at the septa or tips not tapered and not swollen.

The curious thing is the ascus shape (fusiform with tapered tips) and the small fruitbodies looking like Mycosphaerella sp., which are almost leaf inhabiting fungi. So I am sorry, I have no idea :/

Perhaps you can help me. Thanks for this :)

regards,
björn
  • message #17577
  • message #17577
  • message #17577
  • message #17577
Björn Wergen, 29-02-2012 16:31
Björn Wergen
Re : curious small pyreno on dead salix sprouts
Hi Yan,

I think there are pseudothecia. I have thought about a lichen, but this is rather a new area for me and hard to identify :(
Hans-Otto Baral, 29-02-2012 17:51
Hans-Otto Baral
Re : curious small pyreno on dead salix sprouts
By chance I had this lichen recently. I am quite sure you have Porina aenea (Porinaceae, Ostropomycetidae).

I had it on bark of an attached Prunus spinosa branch in a more dense forest.

Zotto
Björn Wergen, 29-02-2012 17:59
Björn Wergen
Re : curious small pyreno on dead salix sprouts
wow many thanks Zotto, this is great :)

regards
björn