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Fuscolachnum ? Hyphodiscus ? sur Pteridium aquilinum
Gilles Corriol,
15-06-2013 15:18
Une récolte à la base de tige mortes de Pteridium aquilinum (GC13052501).
Apothécies 0,2-0,5 mm, cupuliformes.
Spores 8-11 x 1,0-2,6 µm, clavées, non septées, à nombreuses guttules.
Asques 60 x 7 µm, bisériés, bouclés, I+(lugol).
Paraphyses vaguement fusiformes, septées, non ramifiées à vacuoles légèrement réfringentes dans l'eau.
Poils bruns, obtus, multiseptés, jusque 70 x 4-5 µm, granuleux sur toute leur longueur.
Textura prismatica à paroi épaisse, réfringeante (gélifiée ?).
Fuscolachnum pteridis devrait avoir les spores plus petites et une macro apparemment différente. Sinon, les clés m'orientent vers le genre Hyphodiscus, mais je ne trouve pas de représentant qui colle.
Merci pour votre aide !
Hans-Otto Baral,
15-06-2013 16:27
Re : Fuscolachnum ? Hyphodiscus ? sur Pteridium aquilinum
I think it fits quite well Fuscolachnum pteridis.
You don't have a photo of free spores showing the contents? The width 1-2.6 is a bit unsharp, or you mean 2-2.6? Asci react blue? I imagine a dirty red.
The gelified excipulum sounds strange and reminds of Hyphodiscus. Is it only more towards the margin?
Zotto
You don't have a photo of free spores showing the contents? The width 1-2.6 is a bit unsharp, or you mean 2-2.6? Asci react blue? I imagine a dirty red.
The gelified excipulum sounds strange and reminds of Hyphodiscus. Is it only more towards the margin?
Zotto
Gilles Corriol,
15-06-2013 16:37
Re : Fuscolachnum ? Hyphodiscus ? sur Pteridium aquilinum
Sorry, I meant 8-11 x 1,9-2,6 µm. Aren't they too long for Fuscolachnum pteridis ?
The excipulum seams to have glassy walls close to the margin.
Yes asci pore reacts blue in lugol. I don't have picture with floating spores. I could do some but the fungi is dry now.
Thank you Zotto for help !
Gilles
The excipulum seams to have glassy walls close to the margin.
Yes asci pore reacts blue in lugol. I don't have picture with floating spores. I could do some but the fungi is dry now.
Thank you Zotto for help !
Gilles
Hans-Otto Baral,
15-06-2013 16:45
Re : Fuscolachnum ? Hyphodiscus ? sur Pteridium aquilinum
I have a plate of Enrique with spores 8-15.5 x 2-2.7 µm.
Haines says 6-10 x 1.4-2.3 (dead state probably)
Zotto
Haines says 6-10 x 1.4-2.3 (dead state probably)
Zotto