Accès membres

Mot de passe perdu? S'inscrire

13-07-2014 19:24

Michel Delpont Michel Delpont

Bonsoir.Je cherche une description de Coprotus win

13-07-2014 12:52

Marcus Yeo

I recently found this Cistella growing on dead lea

10-07-2014 23:04

Alain BRISSARD

Bonsoir à tousPremière fois que je découvre cet

12-07-2014 20:20

René Dougoud

Chers Tous,J'ai eu la chance de récolter Scutelli

13-07-2014 07:15

Nina Filippova

Hello. I have collected two species of Pezoloma(li

12-07-2014 19:34

hannie wijers

Hello, On a branch of hardwood I found this vibra

12-07-2014 13:46

Maren Kamke Maren Kamke

Hi everybody,i keep finding this Pyrenopeziza spec

12-07-2014 09:57

Cacialli Gabriele Cacialli Gabriele

Chers amis,J'ai un problème avec la paternité de

06-06-2014 00:08

Marcus Yeo

This Lachnum was growing on dead leaves of Eriopho

10-07-2014 21:11

Chris Yeates Chris Yeates

This species has surprisingly few British records,

« < 1139 1140 1141 1142 1143 > »
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