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10-09-2017 20:58

BERNARD CLESSE BERNARD CLESSE

Sur laissée de sanglier, en pessière fraîche.

20-09-2017 11:27

Edvin Johannesen Edvin Johannesen

This Hymenoscyphus (?) was found on Gymnocarpium d

13-09-2017 08:09

Ethan Crenson

Hello,In the Bronx, Pelham Bay Park, New York, US.

20-09-2017 13:32

Viktorie Halasu Viktorie Halasu

Hello forum,last week I finally found a Smardaea b

16-09-2017 12:45

Lothar Krieglsteiner Lothar Krieglsteiner

... collected this week in Nature Reserve "Žofín

18-09-2017 23:14

Philippe Louasse

Bonsoir à tous, Les 9èmes Journées mycologique

12-08-2014 11:56

Zuzana Egertova Zuzana Egertova

Hello, in this ascomycete everything seems to fit

18-09-2017 17:54

Rubén Martínez Gil Rubén Martínez Gil

Hola a todos. Estoy buscando este artículo: Med

21-08-2017 01:44

Ethan Crenson

In the Green Mountains of Southern Vermont, US. 

17-09-2017 12:05

Rubén Martínez Gil Rubén Martínez Gil

Hola a todos. Subo unas fotos de una Rutstroemia?

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Stamnaria sp 270717
Miguel Ángel Ribes, 06-09-2017 19:13
Miguel Ãngel RibesGood evening

Growing on Equisetum arvense, in Bygdim lake, Norway, 1.057 m, together with Roseodiscus rhodoleucus and probably R. equisetinus. I saw "in situ" Roseodiscus, but not this Stamnaria, who grows latter, probably at home.

Macro: Cup-shape apos, white-cream to very light orange, semi-transparent, very long stipe, (1052,3) 1159,9 - 2148,4 (2149) × (317,6) 372,1 - 499,2 (521,4) µm; N = 9; Me = 1560,7 × 429,5 µm.

Asci cylindrical, 8-spores, uniseriate, with croziers, IKI+, (231) 231,2 - 245,1 (245,7) × (10,6) 10,7 - 11,5 (13,2) µm; N = 7; Me = 238,5 × 11,4 µm.

Spores broadly elipsoid, hialine, plenty of small guttules, (16,7) 17,3 - 20,3 (22,2) × (9,9) 10,5 - 12,1 (12,9) µm; Q = (1,4) 1,44 - 1,8 (2,2) ; N = 52; Me = 18,6 × 11,3 µm ; Qe = 1,6.

Ectal excipulum with textura porrecta, more prismatica near the margin, but covering with a slim layer of textura gelatinosa.

Medullar excipulum and subhymenium more or less with textura intricata.

I think the nearest species is S. urceolata, but very pale and with a very broadly elipsoid spores.

Thank you for your help.

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Hans-Otto Baral, 06-09-2017 19:42
Hans-Otto Baral
Re : Stamnaria sp 270717
Hi Miguel Angel!

superb collection, and I agree it is close to "urceolata" (which is now the true S. persoonii), but spores are too large. However - your ascus measurements are from dead asci because the width is just the same as for the spores. You did not see any turgescent asci? The spores look pretty good, i.e. they do not appear to be overmature, but in S. persoonii I saw them only 7.5-9 µm wide.

How much apothecia do you have? I am sure Danny Haelewaters would like to take a sequence.

Zotto
Miguel Ángel Ribes, 06-09-2017 22:25
Miguel Ãngel Ribes
Re : Stamnaria sp 270717
Hi Zotto

No, none living asci, and few spores, not overmature sure.

Now the collection is dried, but I remember at least more than 30-40 apos. Give me the addres of Danny and I will sent him some sample.

Thank's a lot.
Hans-Otto Baral, 07-09-2017 12:08
Hans-Otto Baral
Re : Stamnaria sp 270717
I will send you his address by mail. Thanks! First I will ask him.