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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:

15-04-2026 19:33

Fátima Durán Manzaneque

Hi!! I need help, I found this Ascomycete but I d

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Documentation
Camille Mertens, 15-02-2020 11:04
Bonjour à tous.

Quelqu'un d'entre vous pourrait-il me fournir une représentation (photo ou dessin) d'une conidie de
Orbilia oxyspora (= sambuci)?

D'avance merci.
Hans-Otto Baral, 15-02-2020 11:41
Hans-Otto Baral
Re : Documentation
Bonjour Camille

How did you arrive at the name Orbilia oxyspora without consulting my homepage folder?

There you could have seen conidia. We consider O. fimicoloides a synonym, here the plate of Webster et al. attached.

Zotto
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Camille Mertens, 15-02-2020 13:07
Re : Documentation
Guten Tad und vielen Dank Zotto.


I found this strange "thing" in a slide of what I though it could be Orbilia auricolor but I didn't pay attention of what it could be.
Then I read in a forum discussion that you pointed a difference between O. auricolor and O. sambuci based on the shape of the conidias and the resolving of the cells on the edge and I remembered then what I found previously.
I also mesured the spores a little bit longer (up to 14,5 µm) but these could be stretched.
Kind regards.

Camille
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Camille Mertens, 15-02-2020 14:43
Re : Documentation
Hello Zotto.


Herewith some more photos.
Could it be O. sambuci or O. aurantiorubra?

Camille

Hans-Otto Baral, 15-02-2020 17:03
Hans-Otto Baral
Re : Documentation
Spore shape reminds me of O. aurantiorubra. but spore orientation looks wrong at first glance. Your section in water is good but more photos are needed to better see the spore bodies and perhaps SCBs in the excipulum. The yellowish apo is another species?


Camille Mertens, 15-02-2020 17:36
Re : Documentation
Both apo's were on the same wood but the micro comes from the paler one.

I'll try to give other photo's.
Camille Mertens, 15-02-2020 18:48
Re : Documentation
Herewith more photos of spores in water.
The apo's left from the host becomes yellowish.
The conidias seems to come from Diatrybe bullata...
I assume that it will be definitely O. aurantiorubra.

Regards.

Camille
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Hans-Otto Baral, 15-02-2020 20:16
Hans-Otto Baral
Re : Documentation
Yes, it is. The host is often Salix or Ulmus, do you know it here?
Camille Mertens, 15-02-2020 20:45
Re : Documentation
It seems to be Salix.
Thanks.