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17-01-2026 19:35

Arnold Büschlen

Hallo, ich suche zu Cosmospora aurantiicola Lite

17-01-2026 10:41

Blasco Rafael Blasco Rafael

Hola, he descubierto que he creado una Pulvinula t

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-01-2026 00:45

Ethan Crenson

Hi all, On decorticated hardwood from a New York

16-01-2026 11:20

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) 

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

13-01-2026 07:28

Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

15-01-2026 15:55

Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

15-01-2026 10:35

Johan Boonefaes Johan Boonefaes

Last week I found this fungus, possibly a hyphomyc

13-01-2026 08:43

Danny Newman Danny Newman

Tricladium varicosporioides on indet. decorticate

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Ciboria?
Hans Adema, 07-04-2016 16:10
A friend of mine found these Cup Fungi on barren soil in a parc in Amsterdam. No Dumontinia, the spores are those of a Ciboria I think. They grow on a soft black sclerotium wich is pure white inside. Can anyone help me?
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Hans-Otto Baral, 07-04-2016 16:22
Hans-Otto Baral
Re : Ciboria?
Is the fungus of a similar size as D. tuberosa?
I need to see the spores in water, then it is possible (not easy) to discern if there are two or four nuclei in each spore. D. tuberosa is 4-nucleate.

Did you notice any plants around?
Zotto
Hans Adema, 07-04-2016 16:26
Re : Ciboria?
They are smaller than Dumontinia. Plants in the surroudings were Corydalis, Cheledonium, Betula, Adoxa and Lysimachia nummularia. There is a Ciboria on seeds of Betula, but i do not know if that species has such a big sclerotium.
Hans-Otto Baral, 07-04-2016 16:34
Hans-Otto Baral
Re : Ciboria?
When there is Corydalis then I suppose this is the host plant. The apo diameter is probably around 5 mm, or?

On Corydalis and Ficaria occurs an apparently undescribed species which is very easily confused with D. tuberosa.
Lothar Krieglsteiner, 07-04-2016 16:36
Lothar Krieglsteiner
Re : Ciboria?

This is no Ciboria - Ciboria species do not have sclerotia but only sclerotize the substratum that may become black for instance. Ciboria betulae is a very small species with warted spores and has nothing to do with your specimen.


Regards from Lothar


P.S. the plants around. No Anemone nemorosa - o.k.


What about Ranunculus ficaria, Polygonatum, Paris?

Hans-Otto Baral, 07-04-2016 16:49
Hans-Otto Baral
Re : Ciboria?
Or Corydalis :-)
Hans Adema, 08-04-2016 14:29
Re : Ciboria?
Paris and Polygatum don't occur in the surroundings of Amsterdam, so Corydalis en Ficaria are left as possible host
Hans Adema, 08-04-2016 14:30
Re : Ciboria?
Thanks!