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21-06-2006 13:00

Hans-Otto Baral Hans-Otto Baral

Has anybody ever seen this coelomycete? It grew in

14-06-2006 18:18

Didier ARGAUD

Bonjour à tous Le 28.05.06 j'ai trouvé sur Hera

12-06-2006 19:49

Nicolas VAN VOOREN Nicolas VAN VOOREN

Description d'un minuscule champignon se développ

12-06-2006 18:13

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour. En reprenant quelques échantillons d'he

10-06-2006 23:37

Christian Lechat Christian Lechat

Dear friends, I would like to know the anamorpho

10-06-2006 23:12

NC NC

Bonsoir à tous, En cherchant Vialaea insculpta s

09-06-2006 09:42

Perz Piotr

Hi everybody I found this Asco on prev.years st

03-06-2006 19:34

NC NC

Bonsoir à tous, Nous venons de trouver dans un

01-06-2006 23:20

Christian Lechat Christian Lechat

Chers amis du forum, Vous savez sans doute que

01-06-2006 18:48

Enrique Rubio Enrique Rubio

Quelqu'un peut-il m'aider en détermination de ce

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Coelomycete on Acer wood
Hans-Otto Baral, 21-06-2006 13:00
Hans-Otto BaralHas anybody ever seen this coelomycete? It grew in Sweden (Skane, NP Söderasen, leg. Felix), on undecayed wood of a broken, 18 mm thick Acer branch obliquely hanging on the ground. Stromata 1.5-3 mm broad, 150-250 µm thick, pycnidial cavities 60-150 µm tall. Conidia *9.5-14 x 3.3-4 µm, conidiogenesis very probably phialidic.

Zotto
  • message #878
Hans-Otto Baral, 05-08-2006 11:47
Hans-Otto Baral
Re:Coelomycete on Acer wood
In the meantime, Walter Jaklitsch identified this fungus from my photos as the anamorph of a Diaporthe. In that genus the anamorphs are less diverse than the teleomorphs so that Walter prefers not to name this species from the anamorph alone. Actually, at least 5 Diaporthe species have been described on Acer. At the collection site there was Acer platanoides (natural) and A. pseudoplatanus (introduced), so one of these two Acer species must have been the host of this fungus.

According to Walter, a pseudostroma in the wood forming a so-called ventral zone (= black line in section) - as seen in our collection - is characteristic of many Diaporthe species, and is of course also found beneath the perithecia.

cheers
Zotto