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25-01-2026 16:08

Malcolm  Greaves Malcolm Greaves

This Geoglossum had spores mostly 70-80 (87) with

27-01-2026 11:43

Malcolm  Greaves Malcolm Greaves

Is anyone with experience of DNA testing able to t

26-01-2026 11:49

Margot en Geert Vullings

We found this possible anamorph on a dead Cytisus

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

18-01-2026 12:24

Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

23-01-2026 21:50

Cameron DK

I am looking for this please publication. is anyon

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

21-01-2026 19:55

Bohan Jia

Hi,  Could this be Nemania aureolutea? Or did I

21-01-2026 16:32

Gernot Friebes

Hi,I need your help with some black dots on a lich

21-01-2026 16:48

Gernot Friebes

Hi,after my last unknown hyphomycete on this subst

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Rustroemia ?
Bometon Javier, 27-09-2016 21:06
Bometon JavierEsporas 15-20 X 4-5 um 
Ascas 110-135 X 10 um IKI bb, croziers + ? con dudas

En Fraxinus, creo que salen en los peciolos. 

Alguna idea?

Saludos

Javier
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Hans-Otto Baral, 27-09-2016 21:26
Hans-Otto Baral
Re : Rustroemia ?
Nono, scutuloid spores! Hymenoscyphus fraxineus, the epidemic.
Look the blackened substrate, surely petiole of Fraxinus.
Bometon Javier, 27-09-2016 21:51
Bometon Javier
Re : Rustroemia ?
Hola Zotto, Muchas gracias por la ayuda.

Saludos

Javier
Nicolas VAN VOOREN, 28-09-2016 07:33
Nicolas VAN VOOREN
Re : Rustroemia ?
A lire :
BARAL H.-O. & BEMMANN M. 2014. Hymenoscyphus fraxineus vs. Hymenoscyphus albidus – A comparative light microscopic study on the causal agent of European ash dieback and related foliicolous, stroma-forming species. Mycology, 5 (4): 228-290.
doi: 10.1080/21501203.2014.963720
Martin Bemmann, 28-09-2016 08:44
Martin Bemmann
Re : Rustroemia ?
Hi,
this would be the first record from Spain to my knowledge. But I don't see croziers...
What are the geographical data ? H. albidus we know from Pais Vasco only.

Regards Martin
Hans-Otto Baral, 28-09-2016 09:18
Hans-Otto Baral
Re : Rustroemia ?
You are right Martin, I was sleeping yesterday.... Indeed it is H. albidus, and we know of no other samples than smoe from Pais Vasco. So where did you collect, Javier?
Viktorie Halasu, 28-09-2016 17:00
Viktorie Halasu
Re : Rustroemia ?
Hello, 
I'd like to ask about the 4th image - aren't those two septa on the ascus base? Or is it just wrinkled / damaged after being torn from ascogenous hyphae? (I'm not saying anyone is wrong, just learning how to interpret what I see.)
Viktorie
Hans-Otto Baral, 28-09-2016 17:51
Hans-Otto Baral
Re : Rustroemia ?
I think the third image shows quite clearly a simple-septate base, also the fifth image suggests this. But one must be cautious, croziers may be hidden if not shown in side view.
Bometon Javier, 29-09-2016 19:30
Bometon Javier
Re : Rustroemia ?
Gracias Zotto, Martin, Nicolas .....

El lugar de la recolecta es en Abella- Vilallonga de ter- Gerona- Catalunya- España- 1170m

Quieren más datos?

Saludos

Javier
Hans-Otto Baral, 29-09-2016 20:15
Hans-Otto Baral
Re : Rustroemia ?
Ah, it's in the eastern Pyrenees. If you have coordinates (or direction from Abella) and the date I would note that.
Bometon Javier, 29-09-2016 20:20
Bometon Javier
Re : Rustroemia ?
Ok Zotto, le envío las coordenadas.

Saludos

Javier