08-11-2025 00:29
Francois Guay
I found this species in Quebec, Canada, on herbace
04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
04-11-2025 12:43
Edvin Johannesen
Hi! One more found on old Populus tremula log in O
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
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