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24-11-2021 22:28

Rutstroemia-like, but not quite
Edvin Johannesen Edvin Johannesen

Apothecia on twigs from a deciduous tree (Central

19-11-2021 22:12

Ayuda identificar
Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos,Subo unas fotos de unos discos de col

22-11-2021 22:28

Seiridium sp?
Marc Detollenaere Marc Detollenaere

Saturday, while examining the pileipellis of a Plu

24-11-2021 11:33

En hoja de Quercus
Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,  recolecta

22-11-2021 15:25

Anamorph Fraxinus ornus
Savic Dragisa

HiAnother interesting anamorph, on an ash leaf. I

22-11-2021 13:17

Anamorph Silene
Savic Dragisa

Hi to allAnamorph of interesting shape on the dead

21-11-2021 22:02

Xeropilidium dennisii (Encoelia fuckelii)
Riet van Oosten Riet van Oosten

Hello,Found by Laurens van der Linde, November 202

21-11-2021 21:08

Lachnellula ?
Vasileios Kaounas Vasileios Kaounas

I find it for the first time.found on a branch of

19-11-2021 19:23

Red stromatic pyrenomycete
Ethan Crenson

Hello all, I'm having trouble identifying a pyren

21-11-2021 22:52

yellow 'nodles' on pine
Lepista Zacarias

Hi everyone,The title gives the motivation; 'Nodle

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Rutstroemia-like, but not quite
Edvin Johannesen, 24-11-2021 22:28
Edvin Johannesen
Apothecia on twigs from a deciduous tree (Central Norway), 3-5 mm in diameter, short-stalked. Outside somewhat "scurfy", stalks short, pale, but darker towards the base. No sign of stromatised host tissue. Asci IKI+ (blue in Lugol), 110-120 x 12-13 mcr, spores 16-18 x 4-5 mcr, with two or three guttules plus some smaller. Paraphyses filiform, 1.5-2 mcr broad. Excipulum I guess is textura intricata. I was expecting Rutstroemia, but don't find a match. There doesn't seem to be any sign of dark lines in the host tissue.  Are there some kind of resin in the hymenium?

Photos of re-wetted material. All measures in water.

Suggestions appreciated. Thanks
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Peter Püwert, 24-11-2021 22:48
Peter Püwert
Re : Rutstroemia-like, but not quite
Hi, looks like Rutstroemia firma ?

Regards Peter.
Edvin Johannesen, 24-11-2021 23:10
Edvin Johannesen
Re : Rutstroemia-like, but not quite
That's what I thought initially. I checked images of the differet forms in Zotto's folder and I thought the spores were too narrow. No septa or budding seen, but that may because the spores aren't mature, I guess. This is collected in a spruce forest in Central Norway (but on deciduous wood), so Quercus and Fagus is out of the question. Betula or Salix most probable substrate.

Thanks.
Peter Püwert, 25-11-2021 00:42
Peter Püwert
Re : Rutstroemia-like, but not quite
Yes, probable immature. And there are also references in literature on Alnus, Betula and Corylus.

Regards Peter.