Accès membres

Mot de passe perdu? S'inscrire

02-02-2026 14:55

Lichénicole sur Lobaria
Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Lichénicole sur Peltigera
Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

02-02-2026 09:29

Scutellinia hirta ? sur souche moussue
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

31-01-2026 10:22

Lichenicole hypocreale
Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

01-02-2026 19:29

Lambertella sur Olea
Nicolas Suberbielle Nicolas Suberbielle

Bonjour, Marie-Rose D'Angelo (Société Mycologiq

30-01-2026 22:49

Calycina ?
éric ROMERO éric ROMERO

Bonjour tous, Récolté dans les Vosges le 22/10/

31-01-2026 09:17

Small hairy discs on Castanea
Marc Detollenaere Marc Detollenaere

Dear Forum,On decorticated wood of Castanea,I foun

29-08-2025 05:16

Teleomorph of Dendrostilbella smaragdina ?
Francois Guay Francois Guay

I think I may have found the teleomorph of Dendros

30-01-2026 21:20

Bryocentria brongniartii und B. metzgeriae mit ihrer Anamorphe.
Arnold Büschlen

Bryocentria brongniartii und B. metzgeriae mit ihr

21-01-2026 16:32

Lichenicolous coelomycete
Gernot Friebes

Hi,I need your help with some black dots on a lich

« < 1 2 3 4 5 > »
Diaporthe on Salix branch
Björn Wergen, 04-04-2012 14:26
Björn WergenChère collegues,

I have found this small Diaporthe species on dead attached Salix twix with single growing perithecia, embedded in the bark and with 0,1-0,3 mm diam. Microscopically I think it should be a member of the genus Diaporthe, but I am not sure what it is exactly (D. rudis for example has similar spore size and shape, but grows on other substrates). 

It has also similarities with D. alnea, described in Breitenbach&Kränzlin, Vol 1, which seems to have Alnus on the top of its priority list. 

Perhaps you have an idea ;)

I have probably seen very inconspicuous appendixes on both endings.

regards,
björn
  • message #18083
  • message #18083
Alain GARDIENNET, 04-04-2012 17:49
Alain GARDIENNET
Re : Diaporthe on Salix branch
I think it could be Diaporthe eres, as thought by Wehmeyer (I call it for myself "eres complex").
Alain
Björn Wergen, 04-04-2012 21:21
Björn Wergen
Re : Diaporthe on Salix branch
Thanks Alain for your opinion. I also thought about eres, but this finding was completely another one than I had on Ulmus last year.

regards,
björn
Alain GARDIENNET, 05-04-2012 07:52
Alain GARDIENNET
Re : Diaporthe on Salix branch
Perhaps another idea. You haven't given several informations about macroscopy and I ask me if it could be other genus. Have you looked in Plagiostoma (Meijia, SIM68, 2011) ? 
But I always think it could D. eres. 
Alain
Björn Wergen, 05-04-2012 09:18
Björn Wergen
Re : Diaporthe on Salix branch
Yes I did, but except P. salicellum with different spore size and P. exstocollum with different substrate there is no species which fits well to my finding. I think D. eres should be right, I have compared it with my finding from 2011 and spores are nearly the same, but macroscopic appearance is so variable.

thanks again Alain

regards,
björn