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20-06-2024 16:07

Nicolas Suberbielle

Bonjour, J'ai trouvé cette espèce sur les feuil

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Michel Hairaud Michel Hairaud

Bonjour, I can no longer reach  Javier Etayo at

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François Bartholomeeusen

On female Alnus catkins I found very small fruit b

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Stip Helleman Stip Helleman

Dear all, a week ago this cushen formed species w

16-03-2018 12:26

Garrido-Benavent Isaac

Dear all,I found this beautful pseudotheciate asco

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Bernard Declercq Bernard Declercq

Dear all, I am looking for the description and ac

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Thierry Blondelle Thierry Blondelle

Bonjour,Récolte sur une brindille dans une tourbi

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Juuso Äikäs

A couple days ago I found some Mitrula fruitbodies

16-06-2024 16:47

Hardware Tony Hardware Tony

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Josep Torres Josep Torres

Hello.An anamorph located in nature, on the surfac

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Mollisia caespiticia ?
Roland Labbé, 01-03-2009 02:23
Bonjour !

Encore besoin d'aide pour ce Disco jaune ochracé.
Merci de vos réponses.

Roland

Détails :

Date de récolte: 2009 / 02 / 24
Substrat : culture intérieure sur bûche en décomposition d'érable rouge
Sporée non obtenue

Asques à 8 spores bisériées, avec crochet à la base, avec appareil apical inamyloïde, 48-50 x 5 -6 µm
Paraphyses cylindriques, à 1 ou 2 septa au tiers inférieur, avec vacuoles hyalines allongées ?, 50 x 2-3 µm, dépassant à peine les asques
Spores étroitement ellipsoïdes, lisses, non septées ? ou à un septum médian très mince et hyalin difficile à préciser et rarement observé, hyalines, avec 2-3 guttules, 5-7 x 2-3 µm, 5,9 x 2,5 µm en moyenne (10 spores), Q = 2,36
Excipulum en textura globulosa
  • message #6894
Hans-Otto Baral, 01-03-2009 10:12
Hans-Otto Baral
Re:Disco jaune ochracé
The excipulum looks like in Mollisia. M. caespiticia would be one of the very few lignicolous species of Mollisia with inamyloid asci. To verify it would be valuable to see living paraphyses. Only the spores are alive on your oil immersion photos. If the living paraphyses contain a reftactive elongate vacuole (typical of every true Mollisia) then I would identify M. caespiticia. Perhaps a median section of the apothecia (especially marginal region) would be helpful too.

I have only somewhat atypical images from a Mongolian collection, but the species is not rare in Central Europe.

Zotto
  • message #6901
Roland Labbé, 03-03-2009 01:27
Re:Mollisia caespiticia
Hi Zotto !

I have changed the plate and added inamyloïde ascus and lived paraphyses (yong specimens).
I think there are elongated hyaline vacuoles in the paraphyses as you daid.
This question : what do you mean by the excipulum looks like in Mollisia or what is the structure of a true Mollisia ?

I hope it'is all right.

Roland
Hans-Otto Baral, 03-03-2009 15:57
Hans-Otto Baral
Re:Mollisia caespiticia ?
Hi Roland

I cannot see a difference in your image to what I remember, the paraphyses on the left are still dead, those on the right too minute to be sure. Could you extract them in higher resolution, please? . Here I have an image of the close Mollisia ligni showing the VBs in marginal hairs and paraphyses. Similar VBs exist in M. caespiticia and in all true Mollisias. Without these VBs I am somewhat unsure with my determination of the genus.

Zotto
  • message #6938