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04-09-2009 22:52

Marja Pennanen

Fruitbodies 0,1 to 0, 3 mm wide. Spores 9-2 x 2-3

04-09-2009 18:46

Luc Bailly Luc Bailly

Bonjour à tous, Mercredi dernier, j'ai trouvé

04-09-2009 07:51

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour. Voici une récolte que je trouve ambiguÃ

03-09-2009 22:25

Pablo Chacón Pablo Chacón

De bonnes nuits, un salut à tous. J'ai trouvé

02-09-2009 21:08

Hermine Lotz-Winter

Bonjour, au bord d'un rivage dans le massif de

02-09-2009 19:38

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour. Encore un Mollisia problématique... Ap

01-09-2009 00:08

Yannick Mourgues Yannick Mourgues

Re bonsoir. Voici encore un autre Hymenoscyphus

31-08-2009 21:07

Yannick Mourgues Yannick Mourgues

Bonsoir. J'aimerai votre avis sur cet Hymenoscy

31-08-2009 00:41

Yannick Mourgues Yannick Mourgues

Bonsoir. Qui peut m'aiguiller sur cette récolt

31-08-2009 00:00

Hermine Lotz-Winter

Bonjour, j’ai trouvè un pyrenomycete très i

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What on Alnus catkins?
Marja Pennanen, 04-09-2009 22:52
Fruitbodies 0,1 to 0, 3 mm wide.
Spores 9-2 x 2-3 and asci 60-75x8-9 micrometers.
Paraphyses 3-4 micrometers wide, bend and a little swollen on the top.
  • message #8932
Hans-Otto Baral, 04-09-2009 23:39
Hans-Otto Baral
Re:What on Alnus catkins?
Hi Marja

The micros (do you mean 9-12 for the spores?) might tell for Calycellina alniella, but the apothecia are a bit small. Did you look for the asci, are they constantly 8-spored? There exists a 4-spored species on Alnus catkins.

Any contents in the living paraphyses? Spore contents?

Zotto
Marja Pennanen, 05-09-2009 10:40
Re:What on Alnus catkins?
Greetings Zotto,
the asci are 8-spored, spores about 9-12x2-3 micrometers when fresh.
With my simple microscope I can't see more.
The fruitbody measurements are not very accurate, they are done with a ruler...

Marja from ascomycetes wonderland ;)
Hans-Otto Baral, 05-09-2009 12:58
Hans-Otto Baral
Re:What on Alnus catkins?
I usually also measure with a ruler, but not rarely I measure the apos on the photos because I mostly use a fix zoom.

So with 8-spored asci I would consider Calycellina alniella as probable, although the apothecia look not very typical. Without detailed microscopic images we cannto say more, sorry.

Zotto
Stip Helleman, 05-09-2009 20:10
Stip Helleman
Re:What on Alnus catkins?
Hi Marja,
Macroscopically it looks to me also not as Caycellina, i think about Allophylaria, there is a still undescribed species on Alnus catcins. Is the excipulum very gelatinised? (If you make a squash mount all the inner tissue is pushed out and the excipulum is persistent, see image)
Stip
  • message #8947