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04-01-2026 17:45

Stephen Martin Mifsud Stephen Martin Mifsud

I was happy to find these orange asmocyetes which

02-01-2026 22:48

éric ROMERO éric ROMERO

Bonjour tous, Je profite de cette nouvelle demand

02-01-2026 19:35

William Slosse William Slosse

Good evening everyone,First of all, my best wishes

03-01-2026 13:08

Niek Schrier

Hi all,We found groups of perithecia on a Lecanora

03-01-2026 15:36

éric ROMERO éric ROMERO

Bonjour, Pouvez-vous me dire quel est le nom à p

29-12-2025 17:44

Isabelle Charissou

Bonjour,J'aimerais savoir si d'autres personnes au

02-01-2026 17:43

MARICEL PATINO

Hi there, although I couldn't see the fruitbody, I

01-01-2026 18:35

Spooren Marco Spooren Marco

Original loamy soil aside a artificial lake.The co

31-12-2025 19:27

Spooren Marco Spooren Marco

Collected from loamy soil, at waterside (completel

29-12-2025 17:51

Blasco Rafael Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

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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