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02-07-2025 18:45

Sur Osmunda regalis
Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

02-07-2025 17:26

hymenoscyphus albidus
Yanick BOULANGER

BonjourRécolté sur une brindille au fond d'un fo

02-07-2025 09:32

Searching of a paper from The Mycologist
Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello, bonjour.Here is the paper I'm searching for

30-06-2025 16:56

Septoria on Impatiens glandulifera
Lydia Koelmans

Please can anyone tell me the species name of the

01-07-2025 23:37

Help with a Pleosporal.
Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

30-06-2025 12:09

Black erumpent on Populus (Ascodichaenaceae?)
Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57

Pezizales --Pyronema?
Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

RECHERCHE ARTICLE
ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

30-06-2025 14:45

is this a Hymenoscyphus on Nothofagus?
Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

25-06-2025 16:56

Scutellinia cejpii ?
Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

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galls (?) or slips of insects? - on Hypoxylon rubiginosum (s.l.)
Lothar Krieglsteiner, 30-10-2015 11:31
Lothar Krieglsteiner

I add here picture of two sites in Southern Gemany. I already had this in different forums but nobody could help me. As here are specialists of Hypoxylon and related fungi, perhaps somebody knows "who" is responsible for this roundish bouildings which I have already found quite often.


Regards from Lothar

  • message #38639
  • message #38639
  • message #38639
Vizzini Alfredo, 30-10-2015 11:50
Re : galls (?) or slips of insects? - on Hypoxylon rubiginosum (s.l.)
Hi,

they are galls induced by the insect (Diptera, Cecidomiide)Mycocecis ovalis. Quite rare

Best

Alfredo V.
Lothar Krieglsteiner, 30-10-2015 11:58
Lothar Krieglsteiner
galls of gall midge Mycocecis ovalis - always (?) on Hypoxylon rubiginosum (s.l.)

Hi Alfredo,


great :-) - I am happy to have this identification.


But I have to contradict - this galls are all but rare, I have seen this many times. Peter Püwert wrote me a mail few minutes ago and stated that they are well-known to him, too.


Best regards from Lothar


 

Hans-Otto Baral, 30-10-2015 12:19
Hans-Otto Baral
Re : galls (?) or slips of insects? - on Hypoxylon rubiginosum (s.l.)
Yes, I knew them also but had no idea ...

Here it was already an issue in 2009
http://www.ascofrance.com/forum/7339/simple-question
Thomas Læssøe, 30-10-2015 17:04
Re : galls (?) or slips of insects? - on Hypoxylon rubiginosum (s.l.)
Yes also quite common in Denmark and Sweden. I knew the guy that described the thing in England so I saw the light already 25 years ago :-)
Björn Nordén wrote it up from Sweden sometime back. As far as I remember I have only seen it on rubiginosum s.st.