26-03-2026 15:31
Åke Widgren
Hello,I found this one in October last year, on r
27-03-2026 10:47
Åge OterhalsI have tentatively identified this Stictis to S. f
25-03-2026 10:35
Hulda Caroline HolteHello,I collected this species growing on a dead b
24-03-2026 21:37
Elisabeth StöckliBonsoir,Sur bois (tronc) très pourri de conifère
25-03-2026 22:23
Marc Detollenaere
Dear Forum,On a debarked stem of Tilia, we found s
24-03-2026 15:44
Åge OterhalsI hope someone can confirm the name of this collec
25-03-2026 20:53
François BartholomeeusenDear forum members,On 23 March 2026, I found sever
23-03-2026 20:16
Miguel Ángel Ribes
Good eveningI'm unable to identify this Coprotus o
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
Patrice
doc1-0001.pdf
Hans-Otto Baral,
02-02-2024 05:40
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
Hans-Otto Baral,
03-02-2024 10:29
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
Patrice