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12-03-2026 19:44

Enrique Rubio Enrique Rubio

Hi to everybody.Can you give me any suggestions ab

11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

12-03-2026 15:45

Åge Oterhals

Dear forum,I found this small discomycete on a ver

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

12-03-2026 16:17

Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

12-03-2026 14:37

David Wasilewski

These small ascomycota (1-3 mm) ere observed growi

11-03-2026 16:48

Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

11-03-2026 14:14

Gernot Friebes

Hi,I would like to share a collection of Scopinell

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Ostropoloid fungus on Hibiscus
Enrique Rubio, 12-03-2026 19:44
Enrique RubioHi to everybody.
Can you give me any suggestions about this ostropoloid fungus that grows in large groups on Hibiscus syriacus wood? The asci show a reddish reaction in IKI even after pretreatment with KOH, the paraphyses lack a pigmented epithecium, and the spores appear to form chains of cuboid, prismatic or almost roundish part-spores that quickly disarticulate.
I don't even know if it is Stictis, Schizoxylon, or some other related genus.
Thank you in advance for your help.

 

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Hans-Otto Baral, 13-03-2026 11:35
Hans-Otto Baral
Re : Ostropoloid fungus on Hibiscus
It appears that the asci are inamyloid. No idea where this reddish reaction is located, can you exclude the ascus plasma?

Inamyloid asci in Ostropales are rather rare, as far as I know. Robergea is inamyloid (even after KOH), but no wonder for a perithecioid fungus.