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04-06-2016 21:30

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,Voici un gros Hymenoscyphus trouvÃ

07-01-2022 22:45

Viktorie Halasu Viktorie Halasu

Hello,last year I've found this Psilachnum on old

07-01-2022 15:59

Andgelo Mombert Andgelo Mombert

Bonjour, Sur branche morte de Quercus cerris, sur

07-01-2022 09:24

Viktorie Halasu Viktorie Halasu

Hello,last year I've collected a milky greyish-whi

06-01-2022 19:48

Josep Torres Josep Torres

Hola.Unos muy diminutos apotecios globosos de colo

05-01-2022 20:59

Riet van Oosten Riet van Oosten

Hello,Found by Laurens van der Linde, December 202

14-11-2021 18:58

Robin Isaksson Robin Isaksson

Hi, Is it possible to id from pictures? Fou

05-01-2022 23:21

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,J'ai trouvé récemment

04-01-2022 11:26

Enrique Rubio Enrique Rubio

Dear all.This ostropalean fungus grew on hanging R

03-01-2022 12:39

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,  recolecta

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gros Hymenoscyphus sur Fallopia japonica
Bernard CLESSE, 04-06-2016 21:30
Bernard CLESSEBonsoir à tous,

Voici un gros Hymenoscyphus trouvé à la base d'une tige pourrie de renouée du Japon (Fallopia japonica). Diamètre apothécie 3 mm. Longueur pied : 2 mm.

a) paraphyses cylindriques, très guttulées
b) asques à crochet à la base, très faiblement IKI+ ?
c) spores ellipsoïdes à subfusiformes, guttulées : 8,5-13x3-4

Une idée ?

Bernard
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Hans-Otto Baral, 04-06-2016 21:37
Hans-Otto Baral
Re : gros Hymenoscyphus sur Fallopia japonica
I suppose H. peruni which is on woody substrates but we had it on Fallopia too, near Trélévern by Brigitte in 2008.
Bernard CLESSE, 04-06-2016 21:50
Bernard CLESSE
Re : gros Hymenoscyphus sur Fallopia japonica
Great !

Indeed Zotto, the base of this stem of Fallopia japonica was almost woody!

Thank you for your opinion !

Bernard
Viktorie Halasu, 08-01-2022 11:22
Viktorie Halasu
Re : gros Hymenoscyphus sur Fallopia japonica
Hello Zotto,

I assume this is the same case of H. peruni? 
Large light yellow stipitate apothecia on Reynoutria stem.
Asci weakly IKI+b (in diluted Lugol!), H+. Paraphyses VB+ 3refr.
Long and slightly undulating hyphae on the surface on / below margin, VB+.  

Would you know whether the asci in type of H. peruni are amyloid or not? Svrcek (1985) did not write anything about amyloidity and in the 1989 paper he cited two recent colls., one weakly amyloid, the other inamyloid. 

Viktorie
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Hans-Otto Baral, 08-01-2022 11:54
Hans-Otto Baral
Re : gros Hymenoscyphus sur Fallopia japonica
I think so. Was it collected in sping/summer? I did not study the type of H. peruni, but this species may be amyloid (more frequent I think) or inamyloid. This must not mean that they are different species.
Viktorie Halasu, 08-01-2022 12:08
Viktorie Halasu
Re : gros Hymenoscyphus sur Fallopia japonica
Oh, I forgot to write it - leg. 30.V.2021, Olomouc, Cernovirske slatiniste, Reynoutria stand in a clearing under power line. 
Thank you for both confirmations.