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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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Scutellinia sp. dans un fossé humide
Bernard CLESSE, 03-06-2015 22:05
Bernard CLESSEBonsoir à tous,

Pouvez-vous m'aider à identifier ce Scutellinia observé dans un fossé humide sur débris ligneux ou herbacés pourrissants ?

a) poils bruns, septés (4-6 septa), à parois épaisses, longs jusqu'à 350 mu max., à base simple
b) paraphyses enflées au sommet, septées, à pigment rouge-orange
c) spores elliptiques, à grosse guttule : je n'ai pas vu d'ornementation dans le bleu coton : 22-23x14,5-16,5

Merci d'avance !

Bernard
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Chris Yeates, 03-06-2015 22:43
Chris Yeates
Re : Scutellinia sp. dans un fossé humide
Bonsoir Bernard
I think you need to post more (and possibly larger) images. Ornamentation of liberated spores in cotton blue is essential. The rather sigmoid hairs remind me of this fungus I found: http://www.ascofrance.com/search_forum/31245
But I am no expert in Scutellinia!

Cordialement
Chris
Bernard CLESSE, 03-06-2015 22:52
Bernard CLESSE
Re : Scutellinia sp. dans un fossé humide
Good evening Chris,

Thank you for your answer!

What beautiful photos about ornamentation of liberated spores in cotton blue ! I never come to good results for spores Scutellinia in cotton blue !

I'll try to find liberated spores and well color the blue cotton again.


Bernard

Bernard CLESSE, 03-06-2015 23:18
Bernard CLESSE
Re : Scutellinia sp. dans un fossé humide
Hi Chris,

Here are some bad pictures of spores in blue cotton. There is a low ornementaion non reticulated.

Bernard
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Bernard CLESSE, 03-06-2015 23:23
Bernard CLESSE
Re : Scutellinia sp. dans un fossé humide
Hi Chris,

I read that Benat asked you to check if there were no hairs flexuous like a long etirated S

I think that's the case with my Scutellinia.

Bernard

Chris Yeates, 03-06-2015 23:29
Chris Yeates
Re : Scutellinia sp. dans un fossé humide
Yes that is why I said "The rather sigmoid hairs remind me of this fungus I found"
Hopefully someone who knows a lot more than me may comment.

Chris
Bernard CLESSE, 03-06-2015 23:30
Bernard CLESSE
Re : Scutellinia sp. dans un fossé humide
OK Chris, thank you for your help !

Bernard
Bernard CLESSE, 03-06-2015 23:49
Bernard CLESSE
Re : Scutellinia sp. dans un fossé humide
I think it is Scutellinia kerguelensis. I have seen one hair with bifurcate base, the others have simple base. Hairs base : 24-25 mu wide

Poils marginaux, 130-480 x 18-38 µm, à base bifourchue. Ascospores ornées de verrues et de cordons peu élevés jusqu'à 0,3 µm de haut ........................................................................................ 35. S. kerguelensis
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Michel Delpont, 04-06-2015 10:37
Michel Delpont
Re : Scutellinia sp. dans un fossé humide
Salut Bernard.

Verifie bien l'ornementation des spores ainsi que la moyenne des dimensions; je pense aux confusions possibles avec S.nigrohirtula.

Michel.
Malcolm Greaves, 04-06-2015 16:26
Malcolm  Greaves
Re : Scutellinia sp. dans un fossé humide
I think the ornamentation is too large for the S kerguelensis complex which tends to have mostly just "micro" warts.
I would go with Michel and say S nigrohirtula
Mal
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Bernard CLESSE, 04-06-2015 17:44
Bernard CLESSE
Re : Scutellinia sp. dans un fossé humide
Grand merci pour vos avis Michel et Malcolm !

Dans la clé des Scutellinia, je vois que j'ai choisi instinctivement "Ascospores largement ellipsoïdes" et non "Ascospores ellipsoïdes à fusiformes", dès lors je comprends effectivement que je pouvais très bien arriver à S. nigrohirtula. Dans la clé n'apparaissent pas les mesures sporales de S. kerguelensis.


Est-ce que quelqu'un aurait des dessins ou photos comparatives des spores des deux espèces ainsi que leurs mesures sporales comparées ?


Grand merci d'avance !


Bernard
_________________________________
Big thank you for your opinion Michel and Malcolm!


In the key of Scutellinia, I see that I have chosen instinctively "Ascospores broadly ellipsoid" and not "Ascospores ellipsoid to fusiform" therefore I do understand that I could very well happen in S. nigrohirtula. In the key does not appear the spore measures S. kerguelensis.


Does anyone have drawings or pictures of comparative spores of both species and their spore measures compared?


Big thank you in advance!


Bernard 

Malcolm Greaves, 04-06-2015 19:09
Malcolm  Greaves
Re : Scutellinia sp. dans un fossé humide
The spores of both are on this page courtesy of Schumacher.
The measurement of the spores are S nigrohirtula 19.4-26.5 x 13.8-16.6 and S kerguelensis 21.8-28.2 x 14.4-21.8 (S olivascens 19.4-27.2 x 12.8-17.6)
This gives a great deal of overlap and it is the ornamentation that is important.
Mal

Which key are you using?
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Bernard CLESSE, 05-06-2015 17:31
Bernard CLESSE
Re : Scutellinia sp. dans un fossé humide
Hi Malcolm,

A big thank you for your information and to the very interesting Schumacher page!

I use the Schumacher key to translated into French by R. Dougoud.

Bernard 

Malcolm Greaves, 05-06-2015 18:21
Malcolm  Greaves
Re : Scutellinia sp. dans un fossé humide
Bernard
Even though the key splits on broadly elipsoid and elipsoid to fusiform looking at the spores of S kerguelensis and S nigrohirtula there is not a great deal of difference in the shape.
Mal
Bernard CLESSE, 05-06-2015 18:54
Bernard CLESSE
Re : Scutellinia sp. dans un fossé humide
Thank you for your information Malcolm !

I'll be careful next time

Bernard