26-11-2025 18:13
Jason Karakehian
The entire run of Mycotaxon is now available throu
25-11-2025 14:24
Thomas Læssøehttps://svampe.databasen.org/observations/10490522
25-11-2025 11:03
Mick PeerdemanHi all,One of my earliest microscopy attempts, so
24-11-2025 15:23
Arnold BüschlenHallo, auf einer offenen Kiesfläche am Rande ein
23-11-2025 11:16
Bohan JiaHi, I found small discs growing on dead stem of
21-11-2025 10:56
Christopher Engelhardt
Very small (~0,5 mm) white ascos, found yesterday
Encontré estos peritecios hialinos inmersos, de 400 x 380 µm y cuello de 490 x 115 µm, emergiendo solo el cuello, en ramas de Prunus lusitanica ssp. Hixa. Ascas con anillo apical refractivo, IKI negativo pero bien visible en Rojo Congo o Floxina. Esporas de 34,5-41,6 x 4-4,9 µm, Me = 39,1 x 4,5 µm, septadas, la mayoría aparentemente con 7 septos, cuya morfología recuerda a conidios de Fusarium. Pienso que es una especie muy similar a Conioscyphascus varius (o Conioscypha varia ??) pero me gustaría conocer la opinión de alguien que conozca este hongo.
Gracias.
Rubén Negrín
very interesting and nicely illustrated post. Thanks for sharing your notes with us.
I never encountered this fungus but it matches perfectly with the description of C. varius provided by Réblova & Seifert, which rarely happens!
Saludos,
Jacques
Thank you for presenting these very nice photos of Conioscyphascus varius on this forum! In particular the second and third photo showing the hyaline perithecium are great. It isn't easy to make such photos because of the soft and fragile fruit bodies largely hidden in the wood.
I firstly encountered the species a few years ago and that collection got its name thanks to Björn Wergen. Since then I have found it regularly especially on Fraxinus branches which were kept in a damp box for some time.
Conioscyphascus varius is the name under which the species was originally described by Réblová & Seifert (2004). The anamorph was earlier described under the name Conioscypha varius. The latter is the proper name since the adoption of the "one fungus, one name" principle.
Saludos,
rubén