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13-09-2025 14:10

Hymenoscyphus on Rubus
Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

13-09-2025 15:43

Recherche
Edmond POINTE Edmond POINTE

Bonjour Christian,J'ai trouvé deux spores ressemb

11-09-2025 16:57

Marthamycetales revision published
Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

13-09-2025 14:01

Otidea platyspora or something else?
Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 23:53

Strickeria kochii?
Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

10-09-2025 17:18

Pseudocoprotus catenipilus ???
Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

02-09-2025 11:34

dark- and small-spored Sordariomycetes on Fraxinus - Denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10527903

07-09-2025 08:19

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Trichobolus
Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

08-09-2025 19:07

Hymenoscyphus sp
ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

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Capitotricha bicolor ?
Ethan Crenson, 16-03-2025 17:15
Hi all,

Found recently in a wooded park in New York City, among hardwoods including Quercus, Liriodendron, Liquidambar, Prunus. These were on a well rotted branch. My sense is that they are Capitotricha bicolor, but I'm not entirely sure, especially because I detect croziers at the ascus base. I did not find clusters of crystals at the hair ends, though there are crystals among hairs and elsewhere.

Spores hyaline, fusiform, 5.0-9.8 x 1.8-2.5µm

Asci IKI+, with apparent croziers (see photo), 45-50 x 4-4.5µm

Hairs are septate, minutely warted, encrusted with what appear to be crystals, occasionally inflated at the ends.

Paraphyses narrow, projecting above the asci up to 10µm.

Thank you in advance,

Ethan
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Alain BRISSARD, 16-03-2025 18:13
Re : Capitotricha bicolor ?
Merci Ethan
 Cependant on  ne peut pas retenir Capitotricha vu l'absence de paraphyses lanceolées
Il semble qu"il faille se pencher sur le genre Arachnopeziza ou Arachnoscypha dont les caractères conviennent mieux. Possible Arachnopeziza trabinelloides ??
Ethan Crenson, 16-03-2025 19:30
Re : Capitotricha bicolor ?
Alain,

Thank you for your reply.  I think that Arachnopeziza trabinelloides would have 1-septate spores. I neglected to mention that these spores are aseptate.  By coincidence, I found Arachnopeziza trabinelloides in a local park just yesterday.

Ethan
Hans-Otto Baral, 16-03-2025 21:37
Hans-Otto Baral
Re : Capitotricha bicolor ?
The yellowish disc is strange, otherwise it reminds me of Dasyscyphella nivea.