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19-09-2025 23:55

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Philippe PELLICIER

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Pézizes de 1-4 mm, brun grisâtres, sur les capsu

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Conioscyphascus?
Rubén Negrín, 02-02-2017 10:09
Hola a todos.

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

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Jacques Fournier, 02-02-2017 10:45
Jacques Fournier
Re : Conioscyphascus?
Hola Ruben,
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
Eduard Osieck, 02-02-2017 13:47
Re : Conioscyphascus?
Hi Ruben,

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.
Rubén Negrín, 03-02-2017 00:04
Re : Conioscyphascus?
Gracias Jacques y Eduard por sus respuestas y comentarios.

Saludos,

rubén