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18-11-2017 21:19

Edmond POINTE Edmond POINTE

Bonjour,Je suuis perplexe quand a mettre un nom su

18-11-2017 14:26

Bernard Declercq Bernard Declercq

Dear forum members,Who can supply me a pdf of foll

18-11-2017 16:45

Gilbert MOYNE

Voici un asco qui me pose problème et je n'arrive

17-11-2017 21:10

Garcia Susana

Sobre madera en zona muy húmeda.No consigo identi

18-11-2017 07:44

Andrés Valverde Valera Andrés Valverde Valera

Bonjour, Je ne sais pas si peut être cette espèc

16-11-2017 15:41

Zoltan Lukacs Zoltan Lukacs

Hello,I have absolutely no idea on this one. (Subs

17-11-2017 06:43

Ethan Crenson

From the Bronx, NYC on Platanus × acerifolia. On

10-11-2017 21:23

Garcia Susana

HolaPeritecio inmerso en madera de haya.No llego a

15-11-2017 23:50

Danny Newman Danny Newman

note cruciate/sulcate ostiolar necks. paraphyses

16-11-2017 17:01

Pavol Palo

Hi, I've found this ascomycete on a dead lying s

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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.