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30-06-2019 08:43

Gray, reddening Hymenoscyphus(?)
Juuso Äikäs

I found these yesterday in a wet, muddy depression

29-06-2019 14:56

Black Asco Embedded in Decorticated Salix Wood
Peter Thompson

Hello Everyone,I have found an ascomycete which is

29-06-2019 17:00

Test
Petra Eimann Petra Eimann

Test

19-06-2019 12:19

Peritecios en Juniperus sabina
Salvador Tello

Hola.Tengo estos peritecios que crecen en ramitas

26-06-2019 07:57

Literature request
Angel Pintos Angel Pintos

Hello, anybody has this article?Hönnel, F. Von (1

14-05-2019 19:44

pyrenomycete from the Algarve (Portugal)
Lothar Krieglsteiner Lothar Krieglsteiner

... growing on small thin twigs of likely Alnus gl

28-06-2019 11:15

Trichophaea gregaria/hybrida?
Juuso Äikäs

There were thousands of these growing on the side

28-06-2019 13:10

Hymenoscyphus-like on various debris
Edvin Johannesen Edvin Johannesen

These small pinkish, stalked apothecia were growin

28-06-2019 16:41

Literature request
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hi, I am looking for this article:Peri? B., 2002.

26-06-2019 20:15

Ceratostomella spec.
Riet van Oosten Riet van Oosten

Hello, Found by Ronald Morsink on decayed wood (F

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Gray, reddening Hymenoscyphus(?)
Juuso Äikäs, 30-06-2019 08:43
I found these yesterday in a wet, muddy depression, growing on pieces of moist wood. I didn't first think of Hymenoscyphus when I saw these but the microscopy is something like it, I think. The apos seem to redden with age and/or when damaged. Some of the asci colored orange in Melzer's and some of them had amyloid apical rings. The spore dimensions are 14.5-20 x 4-5 micrometres. Any thoughts?
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Hans-Otto Baral, 30-06-2019 10:30
Hans-Otto Baral
Re : Gray, reddening Hymenoscyphus(?)
Could you please clarify if coniferous or not? How large are the apos?
The iodine reaction is rather faint. Did you also check in Lugol?  This and the croziers excludes Phalohelotium fulvidulum, but it could be of this group of species.

My subfolder "griseobrunneum ~amyloid H+" might come closest though the excipulum tends to be brownish. You find it in the folder Phaeohelotium monticola group.
Zotto
Juuso Äikäs, 30-06-2019 17:40
Re : Gray, reddening Hymenoscyphus(?)
I got the impression that it's hardwood, but I'm not sure. The biggest apos were about 3mm in diameter. I don't unfortunately have any Lugol.
Hans-Otto Baral, 30-06-2019 17:53
Hans-Otto Baral
Re : Gray, reddening Hymenoscyphus(?)
Hardwood is easy to verify, you only need a cross section and view either under a handlens (20x) or larger.
Juuso Äikäs, 30-06-2019 19:10
Re : Gray, reddening Hymenoscyphus(?)
I don't have the sample anymore but I'll bring some more if I return to the place soon.