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25-04-2025 17:24

Stefan Blaser

Hi everybody, This collection was collected by JÃ

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

10-02-2026 17:42

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me donner

10-02-2026 18:54

Erik Van Dijk

Does anyone has an idea what fungus species this m

09-02-2026 20:10

Lothar Krieglsteiner Lothar Krieglsteiner

The first 6 tables show surely one species with 2

09-02-2026 14:46

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

09-02-2026 11:42

Ã…ge Oterhals

Hi forum, I found this Lachnum on old hardwood tw

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

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Hyalacrotes
Elisabeth Stöckli, 18-08-2017 13:41
Bonjour,

Sur tiges mortes d'Epilobium angustifolium à 2'138m, apothécies 0.3-0.5mm de diamètre, marge et surface externe couverts de poils, à hyménium jaune, asques 62-72x8-10µm, octosporés, IKI rouge, avec crochet, spores 10-13.5x3-4µm, lisses, hyalins, 1 cloison, paraphyses septées, à pointes réfringentes, poils réfringents jusqu'à 30µm, disparaissent au traitement KOH 10%.

Merci d'avance pour vos avis.

Elisabeth
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Kosonen Timo, 18-08-2017 20:41
Kosonen Timo
Re : Hyalacrotes
Salut Elisabeth!

C'est Hyalacrotes hamulata oui? Sensu Raitviir...

I am just back from a trip to Swedish fjälls and found this very same thing there, rather plentiful on old Aconitum stems. Following Raitviir we could only come up with Hyalacrotes hamulata. Looking at Zottos folders, the "hamulata" there (under Unguiculella) is lacking the yellow pigment that is clearly present in your collection. Otherwise they all fit pretty ok together.

First time ever for me, a very beautiful fungus indeed! It was a very lush Aconitum growth with some Filipendula ulmaria and Epilobium angustifolium. Yes!

Timo
Hans-Otto Baral, 18-08-2017 21:57
Hans-Otto Baral
Re : Hyalacrotes
Hoi Elisabeth & Timo

take care with Unguiculella hamulata: This is a Feltgen species and lacks any glass, also the spores are much smaller and the asci inamyloid.

What you mean is Hyalacrotes hamulata (Rehm) = Urceolella hamulata. That species I have, oddly enough, in my Iridinea folder in Naevioideae! And yes, in the specimen that I studied the disc was cream-ochre due to a pale yellow-orange hymenium in section and a pale ochre subhymenium.

The spores only get septate when overmature, inside living asci they should be non-septate.

I am very curious what the molecular data will hopefully tell us!

Zotto
Kosonen Timo, 18-08-2017 22:46
Kosonen Timo
Re : Hyalacrotes
Ah, right, I was a bit too fast. Thanks Zotto, that explains.

-I will certainly dig out DNA from this one...

T
Elisabeth Stöckli, 19-08-2017 11:38
Re : Hyalacrotes
Hello Timo & Zotto

Many thanks, (in my case only on old Epilobium stems) now i understand, spores are septate because overmature! 

Elisabeth