Accès membres

Mot de passe perdu? S'inscrire

03-04-2012 21:05

Alex Akulov Alex Akulov

Dear FriendsSome years ago I have collected a imma

08-04-2012 20:58

Björn Wergen Björn Wergen

Hi all,I have found a small, Microthyrium-like pyr

04-07-2011 17:25

Yatsiuk Iryna Yatsiuk Iryna

Hello, forum! This Morchella species was collecte

22-03-2012 00:25

Luc Bailly Luc Bailly

Bonjour à tous,Sur bois décortiqué de Quercus r

07-04-2012 18:27

Adrian Carter

An ascomycete has been puzzling me for the past fe

07-04-2012 16:30

Paul LEROY

Bonjour Luc,D'aprés tes images et en particulier

06-04-2012 01:55

Chris Yeates Chris Yeates

Some years ago I collected a fungus on Equisetum p

05-04-2012 14:05

Hermine Lotz-Winter Hermine Lotz-Winter

Hello everyone,A friend of mine, Stefanie Rudolph,

04-04-2012 14:26

Björn Wergen Björn Wergen

Chère collegues,I have found this small Diaporthe

03-04-2012 17:50

Enrique Rubio Enrique Rubio

Hi to all:We have collected on hare dung these  v

« < 1382 1383 1384 1385 1386 > »
Diatrype on Betula
Enrique Rubio, 04-09-2012 14:29
Enrique RubioCan this fungus be Diatrype undulata? I have collected it on Betula alba branches at 1600 m and I think could be this species but the macro/micro-differences with another Diatrype species as D. decorticata are very small. Off course, I don't know the conidia. Ostioles are conical, split and slightly protruding. Perithecia up to 500 microns long. I see any blue reaction of the apical pore in Mlz., IKI or KOH pret. (Rappaz says that the asci are I (+)!!)
What do you think?
Many thanks again
  • message #19622
  • message #19622
  • message #19622
Alain GARDIENNET, 04-09-2012 18:19
Alain GARDIENNET
Re : Diatrype on Betula
Dear Enrique,
We had a discussion on this forum, a apart of your answers are inside : http://www.ascofrance.fr/search_forum/16922
My personal opinion is that your fungus is very probably D. undulata. I recognize ondulate (ethymology of undulata) stromate that I regularly observe on Betula. But you are right,  teleomorphs are very close.
Very good photos, as usual !
Alain
Enrique Rubio, 04-09-2012 18:56
Enrique Rubio
Re : Diatrype on Betula
Cher Alain
J'avais lu la discussion que tu me dites mais les differences entre D. decorticata et undulata restent encore peu claires, au moin san practiquer les cultures.

Connais tu si quand Rappaz appele I(+) il pense a la refringence de l'aparail apicale ou il pense á son amyloidisme?
Merci beaucoup
Enrique