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02-05-2026 12:42

Hilfe :pour cette éventuelle Orbiliaceae
Alain BRISSARD

Bonjour à tousJeuidi 30 avril dernier on m'a remi

02-05-2026 13:06

Small perithecia on Oenanthe crocata
Pauline. Penna

Bonjour  Please can someone help me with this id

01-05-2026 22:45

Cheilymenia coprophile
Thierry Blondelle Thierry Blondelle

Bonjour à tous, Une récolte sur bouse séchée d

28-04-2026 20:07

Marthamycetales? - from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

14-04-2026 05:32

Pyrenomycete with yellow subiculum on Aralia
Ethan Crenson

Hi all, A few weeks back a friend pointed out som

28-04-2026 20:33

Parasite on Trochila ilicina?
Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

30-04-2026 10:43

Calycina ??
Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia, España, 

30-04-2026 10:28

Lecanicillium tenuipes?
Rot Bojan

Hello, by appearance I would say that I am dealing

27-04-2026 18:48

Micropodia pteridina?
Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 20:52

Mollisia or related genus from Portugal - with quite peculiar character
Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

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Ciboria (?) en xérobrometum
Bernard CLESSE, 13-12-2017 10:41
Bernard CLESSEBonjour à toutes et tous,

J'ai trouvé hier en pelouse calcicole xérique très rase (xérobrometum) ce petit asco qui me fait penser à un Ciboria.

a) diamètre apothécie : 2,5 mm
b) longueur pied : 2 mm
c) spores elliptiques-subfusiformes, à 2 guttules polaires : 18,5-21x8,5-9 µ
d) asques IKI+
e) excipulum à textura globosa, à cellules brunes, les terminales hyalines et cylindro-clavées
f) paraphyses hyalines, à peine élargies à l'apex.

Bernard
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Lothar Krieglsteiner, 13-12-2017 11:15
Lothar Krieglsteiner
Re : Ciboria (?) en xérobrometum

Hi Bernard,


I think this is Sclerotinia trifoliorum.


You have overlooked the sclerotia.


Look at your ascus-foto - you see 4 small and 4 larger spores.


The habitat is quite typical, the species is quite common in meadows, but mostly only solitary or few ascomata.


Best regards, Lothar

Bernard CLESSE, 13-12-2017 11:22
Bernard CLESSE
Re : Ciboria (?) en xérobrometum
Big thanks for your answer Lothar!

Do you know the potential hosts of this Sclerotinia because in this environment there is to my knowledge no Trifolium but many other Fabaceae (Hippocrepis, Anthyllis, Medicago…) ?

Best regards,

Bernard

Lothar Krieglsteiner, 13-12-2017 15:34
Lothar Krieglsteiner
Re : Ciboria (?) en xérobrometum

Hi Bernard,


I fear I cannot help you with this - perhaps the species is not very specialized.


Best regards from Lothar

Bernard CLESSE, 13-12-2017 15:45
Bernard CLESSE
Re : Ciboria (?) en xérobrometum
OK Lothar, thank you.

Bernard
Martin Bemmann, 13-12-2017 16:01
Martin Bemmann
Re : Ciboria (?) en xérobrometum
Dear Bernard,

check this database: https://nt.ars-grin.gov/fungaldatabases/fungushost/fungushost.cfm

there are a lot of hosts for S. trifoliorum!

Best regards
Martin
Bernard CLESSE, 13-12-2017 16:14
Bernard CLESSE
Re : Ciboria (?) en xérobrometum
Great thanks Martin !

I see that Medicago, Lotus corniculatus and Anthyllis could be hosts of Sclerotinia trifoliorum, which may be suitable.

Best regards,

Bernard