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14-02-2012 11:56

Zykova Masha

Hello forum! This discomycetes I found on the soil

13-02-2012 08:28

Alex Akulov Alex Akulov

Dear Friends Can you help me with identification

10-12-2011 09:59

Neven Matocec Neven Matocec

Dear AscoFrance members,I am writing the chapter o

10-02-2012 21:38

Yatsiuk Iryna Yatsiuk Iryna

Now I make "a little revision" of old specimens. S

15-02-2012 16:13

André COUDER André COUDER

BonjourJ'ai hésité pour vous demander votre avis

06-10-2011 08:15

Marja Pennanen

Hi,I have once again difficulties to determine thi

14-02-2012 13:02

Guy Garcia

Bonjour, Je recherche l'article suivant : ??Saho

03-03-2007 17:49

Pérez José Luis

Busco claves del género Hymenoscyphus. Gracias

13-02-2012 17:56

Alain Delannoy

Bonjour,Récolte sur crotte de lapin en culture.PÃ

12-02-2012 15:24

Jac Gelderblom

Chers amisUn ami m'a envoyé la description et les

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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