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03-02-2026 20:44

Mycoparasite with irregular conidia
Zetti Mario

When I first saw this white mould on an Agaricus s

18-08-2025 15:07

pyrenomycete on dead parts of foliose liverwort from Norway
Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Dark disc on Populus
Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Lichénicole sur Lobaria
Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Lichénicole sur Peltigera
Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Lichenicole hypocreale
Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

02-02-2026 09:29

Scutellinia hirta ? sur souche moussue
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

01-02-2026 19:29

Lambertella sur Olea
Nicolas Suberbielle Nicolas Suberbielle

Bonjour, Marie-Rose D'Angelo (Société Mycologiq

30-01-2026 22:49

Calycina ?
éric ROMERO éric ROMERO

Bonjour tous, Récolté dans les Vosges le 22/10/

31-01-2026 09:17

Small hairy discs on Castanea
Marc Detollenaere Marc Detollenaere

Dear Forum,On decorticated wood of Castanea,I foun

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Ceuthospora hederae?
Viktorie Halasu, 12-01-2019 14:05
Viktorie HalasuHello forum,

is this correctly identified as Ceuthospora hederae Grove? On leaves of Hedera, conidiomata opening with 2-4 cracks, conidia cylindric, OCI ~ 1 (few tiny LBs at each pole, sometimes also in the middle), non-septate, *(10) 11,7-13,6 (14,6) × (2) 2,4-2,7 (3) ?, with appendix 2,5-4,5 (6) ? long on the lower end, with a congophilous sheath. And is this anamorph of Trochila craterium? I don't have any study in culture or molecular in my literature, any tips are very welcome.

Thank you in advance.
Viktorie 


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Hans-Otto Baral, 12-01-2019 15:16
Hans-Otto Baral
Re : Ceuthospora hederae?
Yes I think it is the Trochila craterium anamorph. In any case it fits the description of C. hederae. I did not have microphotos of this anamorph so far, only macros (see my folder in Cenangiaceae).

As far as I see there is no public genetic proof for this connection.
An incomplete ITS sequence of T. craterium is in GenBank: LT158459,
and SSU V1-V4: KX090886
Viktorie Halasu, 12-01-2019 23:03
Viktorie Halasu
Re : Ceuthospora hederae?
Dear Zotto, 
thank you for confirmation. I've sent you the collection data.
Viktorie