Ciboria betulicola? - Forum ASCOFrance

24-03-2026 15:44

Leptodontidium cf. trabinellum

Åge Oterhals

I hope someone can confirm the name of this collec

25-03-2026 15:06

Hyaloscypha albohyalina à confirmer

Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me confirm

25-03-2026 10:35

Encoelia impudicella?

Hulda Caroline Holte

Hello,I collected this species growing on a dead b

25-03-2026 13:54

Litterature on Eutypa

Enrique Rubio

Does anyone know where I could download Paoletti's

25-03-2026 15:46

Schizoxylon ou proche

Michel Hairaud

Bonjour, Je sollicite de l'aide pour cette récol

24-03-2026 19:59

Sclerotinia binucleata?

William Slosse

Hello everyone,On 23/03/26, I found the following

21-03-2026 15:13

MYXOMYCETICOLOUS FUNGI

Lepista Zacarias

Hello everyone, Does any one know of any literatu

24-03-2026 21:37

Helminthosphaeria

Elisabeth Stöckli

Bonsoir,Sur bois (tronc) très pourri de conifère

24-03-2026 21:07

Eupezizella aureliella ?

Ethan Crenson

Hello all, A friend collected this asco in a wood

23-03-2026 20:16

Coprotus 210226 315

Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

Ciboria betulicola?

Henri Koskinen, 12-04-2023 07:35

Hi all. Here is a Ciboria I collected 09.04 in Finland. I was thinking maybe Ciboria betulicola as there were leaves of birch and catkins which looked like birch male catkins. Spores were 10 - 12 x 5 - 7. I find very little info about C. betulicola but I think spores of betulicola should be smaller?

Martin Bemmann, 12-04-2023 10:28

Re : Ciboria betulicola?

Hi Henri,

the old online-key by Schumacher and Holst-Jensen has a 'Ciboria' betulae (Woronin) White with larger spores.

Regards

Martin

Hans-Otto Baral, 12-04-2023 14:52

Re : Ciboria betulicola?

What a nice collection! To clarify, better micros would be necessary.

If you have the spores a bit larger and without measurements, I could better see the contents. It seems they are 1-nucleate but if you have more photos this could become

clearer.

Also needed is the IKI reaction of the ascus apex and the croziers at their base.

C. betulicola has indeed smaller spores, e.g. in Elliott 1973. In my folder there is one with living spores of8,2 - 9,4 x 3,6 - 4,7 µm.

C. betulae hase slightly fusoid, warted spores and lacks croziers. It grows on seeds instead of catkins.

Stop: Now I looked at the substrate, it looks to me much like Salix male catkins that lost their flowers. So this is Ciboria caucus. If you tell me place where you found it, I will put these data to the photos.

Henri Koskinen, 12-04-2023 17:01

Re : Ciboria betulicola?

Thank you, I add 4 images (used water and Melzer). I left the spore images very dark for better details, maybe they are too dark.

Hans-Otto Baral, 12-04-2023 17:15

Re : Ciboria betulicola?

Spores are sharp, croziers are splendid, for the asci poil imkmerison is necessary. But I am now sure about the identity.

here my drawing shows Salix caprea remnants of the catkins.

Henri Koskinen, 12-04-2023 17:24

Re : Ciboria betulicola?

Thank you, there were also Salix caprea nearby, even though birch was dominating. This was collected in Helsinki, Finland.

Hans-Otto Baral, 12-04-2023 17:33

Re : Ciboria betulicola?

Can you please be a bit more precise, was it inside the town, in which part of the town?

Henri Koskinen, 12-04-2023 18:03

Re : Ciboria betulicola?

Inside Helsinki city limits, humid broad leaf woodland, birch, Salix caprea, ferns. Exact spot is N=6677572.179, E=389648.141 (ETRS-TM35FIN). Is this useful? Helsinki, Keinumäki.

Hans-Otto Baral, 12-04-2023 18:57

Re : Ciboria betulicola?

I transferred to 60°13'11.825" 25°0'29.298" and find it in Viikin arboretum.

Henri Koskinen, 12-04-2023 19:14

Re : Ciboria betulicola?

Yes that is correct, it is a large dendrological arboretum where some parts are left more or less unattended and in quite natural state.

Accès membres

Forum AscoFrance