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23-06-2015 13:04

Yatsiuk Iryna Yatsiuk Iryna

Hello! I collected this Trichopeziza(?) on dead s

23-06-2015 17:02

Vasileios Kaounas Vasileios Kaounas

Found in Abies cephalonica, 23-06-15. With Melzer,

22-06-2015 20:16

Bometon Javier Bometon Javier

Ascomas hasta 4mm, en un tronco de Salix, semiente

23-06-2015 09:04

Marja Pennanen

Hi,here's another mystery. These are about 0,2 mm

23-06-2015 08:50

Marja Pennanen

Hi,the summer finally started here.These change co

22-06-2015 17:16

Malcolm  Greaves Malcolm Greaves

This Scutellinia was found growing on a Picea cone

22-06-2015 14:06

Thorben Hülsewig

Hi there, before 3 weeks ago i found on a tribe (

18-06-2015 09:25

Castillo Joseba Castillo Joseba

De ayer en madera de encinaEstaba muy seca y vieja

22-06-2015 20:31

Bometon Javier Bometon Javier

En tronco de Salix dentro de un riachuelo.Esporas

22-06-2015 20:36

Leandro Sánchez Leandro Sánchez

Sur bois inconnue pour moiAsques 90-100 / 16-17 S

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Trichopeziza on Elytrigia
Yatsiuk Iryna, 23-06-2015 13:04
Yatsiuk IrynaHello! 
I collected this Trichopeziza(?) on dead stems of Elytrigia. Its habitus looks like familiar to me, but spores found to be rather small and slender, comparing to all Trichopezizas I could find in literature.
Spores are (6.6) 7.3 (9.0)-(1.1.)1,3 (1.4) um in size. Asci with no croziers, with negative reaction in Lugol. 
Hairs septate, sometimes with brown lumps (see photos). 
Does anyone have an idea about this?

Thank you very much,
Irina
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Hans-Otto Baral, 23-06-2015 14:47
Hans-Otto Baral
Re : Trichopeziza on Elytrigia
Hi Irina

yes, these fungi are difficult. I know them on exposed substrate, i.e. drought-tolerant.

I have a folder namesd "Trichopeziza with brown lumps", and I suspect that Trichopeziza subsulphurea may occur yellow and cream. But this is only a hypothesis.

There appear to exist more species of TRichopeziza than hitherto known, and the distinction is difficult without genetic methods.

Zotto
Yatsiuk Iryna, 23-06-2015 22:45
Yatsiuk Iryna
Re : Trichopeziza on Elytrigia
Hi Zotto,
I looked to this folder on DVD. In general it looks like yellow T. subsulphurea. But in the descriptions there are croziers and blue/red-blue reaction in IKI. In my specimen there is no croziers for sure and reaction is negative.
So at the moment it remains another interesting finding that needs to be genetically studied...

Thank you,
Irina
Hans-Otto Baral, 23-06-2015 22:57
Hans-Otto Baral
Re : Trichopeziza on Elytrigia
Oh, I was looking mainly to your pics, not your text, sorry!
Would be good to figure these characters. Inamyloid asci are rare in this genus.
My T. urticae is the only I know, and also lacks croziers, but I never saw brown lumps there, and the spores have larger LBs.