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11-05-2020 14:45

Edvin Johannesen Edvin Johannesen

Very small (up to 0,2 mm diam.) whitish apothecia

11-05-2020 19:30

Juuso Äikäs

I photographed these a couple weeks ago or so. The

11-05-2020 20:13

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte de Colutea arborescens

11-05-2020 20:03

Matthias Reul Matthias Reul

Bonjour à tous,voici une espèce de Leptosphaeria

10-05-2020 14:58

Andgelo Mombert Andgelo Mombert

Bonjour à tous, Sur branche morte de Sorbus torm

04-02-2015 01:29

Mario Filippa

In October I found what seemed a corticioid fungus

10-05-2020 23:27

Stefan Jakobsson

Hello, For once the path through the main key of

07-05-2020 16:36

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,J'ai trouvé récemment

10-05-2020 17:59

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, May 2020,

10-05-2020 16:27

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, May 2020,

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Hyaloscypha (?) on Picea resin
Edvin Johannesen, 11-05-2020 14:45
Edvin Johannesen
Very small (up to 0,2 mm diam.) whitish apothecia on resin from Picea abies (Norway). Short (~as high as diam.) stems.  Ascospores 6-8 x 3 microns, with two refractive bodies, ellipsoid to broadly spindle shaped. Asci not discernable. Short hairs, approx. 40 microns long (?), with some sort of incrustations. Stem base pigmented, pseudoparenchymatous. Iodine reaction not checked. Mounted in water (dry specimen, a week old). Three of photos in phase contrast to enhance visibility.

Are we in Hyaloscypha? Any clues appreciated.

Thanks!
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James Mitchell, 11-05-2020 19:33
Re : Hyaloscypha (?) on Picea resin
The only published resinicolous species that is close to this at all is Hymenoscyphus resinae-piceae, I think. The description doesn't seem to match, though. There is a link here: http://www.indexfungorum.org/names/NamesRecord.asp?RecordID=131033. But, perhaps what you found is something that is not obligately resinicolous.
Edvin Johannesen, 11-05-2020 22:01
Edvin Johannesen
Re : Hyaloscypha (?) on Picea resin
Thanks, James. You are right - the description of Hymenoscyphus resinae-piceae doesn't quite fit, and yes, my collection may not be obligately resinicolous.

Cheers!