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30-07-2025 10:12

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

31-07-2025 16:32

Andreas Gminder Andreas Gminder

Dear collegues,today I found on a very fresh fire

30-07-2025 20:52

Bohan Jia

Hi together,  I've been looking posts in AscoFra

30-07-2025 18:06

Stefan Jakobsson

On a decorticated twig of Alnus incana on moist so

29-07-2025 18:59

Castillo Joseba Castillo Joseba

Me mandan el  material seco de Galicia, España,

28-07-2025 12:34

Enrique Rubio Enrique Rubio

Hi to everybody.I would appreciate any ideas about

28-07-2025 04:59

Richard Droker

Growing on resin (over moss on Tsuga heterophyll)l

13-06-2025 09:41

Josep Torres Josep Torres

Hello.A cerebriform ascomycete sprouting scattered

13-06-2025 16:34

Andgelo Mombert Andgelo Mombert

Bonjour,Un petit discomycète qui me résiste. Il

24-07-2025 19:02

Castillo Joseba Castillo Joseba

De esta mañana en tronco caido de Haya A ver si

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Yellow on short stem
Johan Myhrer, 28-08-2019 09:20
Central Sweden 26 august 2019 on decaying leaf and small twigs (Betula) on damp soil under a stump (Picea abies) on a mire (61°58'43.4"N 16°54'36.8"E).

Spores 20-22x5-6µm, mostly without septa, sometimes with one. No croziers. Paraphyses with many drops. The stem is darker in the lower part.

Thought this would be a Calycina, seems to be a Hymenoscyphus?
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Lothar Krieglsteiner, 28-08-2019 09:25
Lothar Krieglsteiner
Re : Yellow on short stem

clearly a Hymenoscyphus (at least s.l.) and not a Calycina - because of the multiguttulate paraphyses - and the macroscopical appearance


Regards, Lothar

Hans-Otto Baral, 28-08-2019 10:33
Hans-Otto Baral
Re : Yellow on short stem
Yes, and the apical ring also excluded Calycina. If the asci are really without croziers it should be Phaeohelotium fulvidulum which may occur in a grey and yellow variant.
Johan Myhrer, 28-08-2019 15:00
Re : Yellow on short stem
Thank you Lothar and Hans-Otto!

P. fulvidulum looks like a match. Is there a description somewhere?

/Johan
Hans-Otto Baral, 28-08-2019 15:27
Hans-Otto Baral
Re : Yellow on short stem
Take my notes on the drawings :-) 

Yes, in Boudier Icones p. 253. I repot it also in my 1985 paper.
Johan Myhrer, 28-08-2019 19:00
Re : Yellow on short stem
Thanks again Hans-Otto. I get cautious since P. fulvidulum is never reported from Sweden before, no searchable records in herbaria and nothing in Ove E. Erikssons cheklist from 2014. As a layman you don't really expect to find new species for Sweden every now and then :-D

/Johan