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12-11-2025 21:47

ruiz Jose

Hola a todos, me envían esta colección en resto

12-11-2025 09:25

Viktorie Halasu Viktorie Halasu

Hello, I need help with a pale terrestric Pseudom

11-11-2025 20:16

Bohan Jia

Hi, lastly I have found these tiny yellow decayin

09-11-2025 13:20

Josep Torres Josep Torres

Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

08-11-2025 09:15

Michel Hairaud Michel Hairaud

Bonjour, Pouvez vous m'aider à identifier ce Mol

06-11-2025 16:50

Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

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Cosmospora from rhizomorphs of Armillaria mellea s.s.
Piotr Perz, 03-04-2022 14:15
Hello, 

as far I remember, many fungicolous species of Cosmospora are host specific. 
There is a known name for Cosmospora parasiting on rhizomorphs of Armillaria mellea s.str.?

Cheers, 
Peter
Jacques Fournier, 04-04-2022 19:04
Jacques Fournier
Re : Cosmospora from rhizomorphs of Armillaria mellea s.s.
Hello Piotr,
cosmospora-like nectriaceae are often host specific but some species are plurivorous, making identification fairly tricky without a thorough morphological study, culture characteristics and phylogenetic data.
That said, I am not aware of reports of such fungi on rhizomorphs of Armillaria, which is a most unusual substrate for them.
Christian's expertise is unfortunately greatly missing.

Cheers,
Jacques
Piotr Perz, 05-04-2022 15:21
Re : Cosmospora from rhizomorphs of Armillaria mellea s.s.
Thank you :-)