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20-02-2026 18:47

Marc Detollenaere Marc Detollenaere

Hello Forum,On rotten wood of Fagus, I found some

07-02-2023 22:28

Ethan Crenson

Hello friends, On Sunday, in the southern part of

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

09-02-2026 22:01

ruiz Jose

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

19-02-2026 13:50

Margot en Geert Vullings

We found this collection on deciduous wood on 7-2-

19-02-2026 12:01

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España), recole

17-02-2026 09:41

Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

16-02-2026 21:25

Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

17-02-2026 17:26

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous, Je recherche cette publication :

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Asco sur Populus
Patrice TANCHAUD, 01-02-2024 23:24
Bonsoir,

récolte sur branche de peuplier au sol. Apothécies 1-3 mm. Asques 85-90 µm à sommet IKI négatif. Spores 9,5-13 x 2,8-3,2 µm.

Merci d'avance pour vos suggestions.

Patrice
Hans-Otto Baral, 02-02-2024 05:40
Hans-Otto Baral
Re : Asco sur Populus
Hmm, I fear more data are necessary. I considered Calycina lactea and C. subparilis, but both have strongly hemiamyloid apical rings.

Could you do a photo of the ascus apex in IKI, best in dead state?

C. lactea has croziers and only 4 developed spores and the apos are distinctly stalked. C. subparilis is simple-septate and 8-spored and the apos are very short-stalked.
Patrice TANCHAUD, 02-02-2024 23:14
Re : Asco sur Populus
Thanks Zotto. I put a preparation in KOH, then in Lugol, but I have no reaction from the top of the asci, I think my Lugol (from 2018) may be expired.

Otherwise, the apothecia are poorly stipitated. And there are 8 spores per asci, but it is not easy to highlight and photograph.

Patrice
  • message #78124
Hans-Otto Baral, 03-02-2024 10:29
Hans-Otto Baral
Re : Asco sur Populus
Difficult to say, and whether some have only 6 large spores could also be due to senescence.
Patrice TANCHAUD, 03-02-2024 10:32
Re : Asco sur Populus
OK. I will try to let it ripen by leaving the piece of wood in a cool place outside.

Thanks.

Patrice