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05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

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Asco on Myxo (Didymium)
Marja Pennanen, 10-07-2011 18:08
Hello folks,

I've been doing mostly myxos lately. So I picked some Didymium or Diderma last night and just studied it. The myxo is Didymium melanospermum, but there were some tiny, invisible ascomycetes growing on the surface of it, so no macrophotos are available.

The spores are small, 5-6x2 and asci about 50x4, propably hemiamyloid.

No idea even of the genus...

Marja
  • message #15784
  • message #15784
Alain GARDIENNET, 10-07-2011 18:42
Alain GARDIENNET
Re : Asco on Myxo (Didymium)
Hi Marja,
Your photo is a little too dark. You can use an open softaware like Photofiltre to work your image.
I don't know your fungus.
Alain
  • message #15785
Marja Pennanen, 10-07-2011 19:35
Re : Asco on Myxo (Didymium)
Ooh, thanks. I have Adobe photoshop limited edition and only crobed the photo.

Been searching in internet. Could this be Nectriopsis? Maybe Nectriopsis exigua? Just haven't found a description yet, just an old key.

Marja
Alex Akulov, 10-07-2011 20:36
Alex Akulov
Re : Asco on Myxo (Didymium)
Dear Marja
Perhaps these articles will help you.
Alex
Marja Pennanen, 10-07-2011 20:59
Re : Asco on Myxo (Didymium)
Dear Alex,

thank you!

I'll check later if Mycologia, Vol. 65? contains a proper description of the species.
Nectriopsis oropensoides? could be another option. Should study some myxo-fruitbodies later for these, if there are some...

Marja


Christian Lechat, 10-07-2011 21:28
Christian Lechat
Re : Asco on Myxo (Didymium)
Hi Marja,
if your fungus is Nectriopsis orpensoides, then , hypal elements should be spinulose.
cordially,
Christian