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20-04-2026 22:00

Malcolm  Greaves Malcolm Greaves

These pale yellow, hairy ascos were growing on cul

19-04-2026 21:23

Steve Clements

Bonjour, I found this anamorphic fungus on old pl

19-04-2026 20:46

Steve Clements

1 mm diameter approx spherical conidiophores on pl

12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

17-04-2026 19:16

Enrique Rubio Enrique Rubio

Hi to everybodyI would appreciate any assistance r

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

17-04-2026 15:14

Bruno Coué Bruno Coué

Bonjour.Récoltes du 16/04/2026, sur feuilles mort

12-04-2026 15:52

Gernot Friebes

Hi,I'm looking for help with this anamorph collect

14-04-2026 21:52

Gernot Friebes

Hi,found on dead leaves of Carex elata. Conidia: 4

16-04-2026 22:09

Buckwheat Pete

Hello, I'd like to ask about this older specimen:

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Trichopeziza mollissima sur Fallopia japonica
Bernard CLESSE, 05-01-2016 19:50
Bernard CLESSEBonsoir à tous,

Trouvé récemment sur tige pourrissante de renouée du Japon ce que je pense être Trichopeziza mollissima.

a) poils cylindriques septés, couverts de granules/cristaux jaunes et asouvent arrondis
b) asques octosporés IKI+ : 67x5
c) paraphyses septées fusoïdes au sommet
d) spores fusiformes (immatures je pense : 10-12x2-3)

Quel est votre avis ?

Bernard
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Bernard CLESSE, 05-01-2016 22:27
Bernard CLESSE
Re : Trichopeziza mollissima sur Fallopia japonica
Aucun avis ??

Bernard
Bernard CLESSE, 06-01-2016 10:18
Bernard CLESSE
Re : Trichopeziza mollissima sur Fallopia japonica
Moi qui imaginais que ce bel asco allait tout de suite trouver un nom, serais-je trop naïf ou inexpérimenté… ?

:o))

Bernard
Hans-Otto Baral, 06-01-2016 10:44
Hans-Otto Baral
Re : Trichopeziza mollissima sur Fallopia japonica
This is a very difficult group now and I am far away to understand it. The spores are too short in my opinion for what I called mollissima which is now to be applied for the white one...

In any case important are the croziers in this aggregate, maybe also the colour reaction in Lgol (first blue then red).

The brown lumps on the hairs may be characteristic, but I am not sure.

Marketa Sandova works on this and I assume she could say more.

Zotto
Gilbert MOYNE, 06-01-2016 10:46
Re : Trichopeziza mollissima sur Fallopia japonica
Salut Bernard
Je vois que tu remues beaucoup de renouée...
Aurais-tu une vue de l'espèce bien étalée où on voit l'hymenium.
Comme toi, je pense à T. mollissima.
Gilbert
Bernard CLESSE, 06-01-2016 11:05
Bernard CLESSE
Re : Trichopeziza mollissima sur Fallopia japonica
OK Zotto,

Great thanks for your opinion !


Bernard

Bernard CLESSE, 06-01-2016 11:06
Bernard CLESSE
Re : Trichopeziza mollissima sur Fallopia japonica
Salut Gilbert,

Comme tu dis ! Et J'ai encore plusieurs ascos sur renouée du Japon qui vont arriver. Si  les apothécies de celui-ci s'ouvrent je ne manquerai pas de refaire une photo ! 

Bernard
Marja Pennanen, 06-01-2016 12:15
Re : Trichopeziza mollissima sur Fallopia japonica
Hi,

I have determined this kind of yellow Trichopezizas as T. leucophaea.
Naturally I'm not sure, weather my determination is correct.

There seems to be some mesh with this genus. I have found photos of yellow and white ones in internet as this species and as T. mollissima.

Marja
Bernard CLESSE, 09-01-2016 22:22
Bernard CLESSE
Re : Trichopeziza mollissima sur Fallopia japonica
Hi Zotto,

I took the Trichopeziza and apothecia were opened. So I got more mature spores : 15-16x2,5

Moreover, I have observed the crozier at the base of asci.


Bernard

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Hans-Otto Baral, 09-01-2016 22:38
Hans-Otto Baral
Re : Trichopeziza mollissima sur Fallopia japonica
Now I believe it is the normal frequent species that is currently fruiting in late spring and summer. Maybe the winter is so abnormal that it is now there.

Typical the drops in the paraphyses. And yes, croziers.

T. mollissima is a white species, according to the protologue, and probably specifically distinct from this one which might deserve a new name.
Bernard CLESSE, 09-01-2016 22:47
Bernard CLESSE
Re : Trichopeziza mollissima sur Fallopia japonica
OK Zotto, great thanks for all !

Bernard