18-05-2026 12:43
Sylvie Le GoffBonjour à tousPuis je avoir votre aide sur ce que
18-05-2026 10:13
Lieve Deceuninck
Dear forum members,I identified this as the teleom
17-05-2026 19:05
Thomas FlammerI have found this tiny 200 ym cup shaped apothecia
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Margot en Geert VullingsWe found this Lachnum on an old Rubus stem.Fruitbo
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Lothar Krieglsteiner
on wood of Ceratonia, Algarve, 3.4.2026.The color
15-05-2026 13:33
Sylvie Le GoffBonjour à tousJe serais très reconnaissante enve
16-03-2011 14:31
roman vargas albertoHi. I would like some opinion about this Peziza
14-05-2026 05:36
Ethan CrensonHi all, I haven't paid much attention to Lachnu
Discomycete on Quercus rubra branches
Alex Akulov,
14-08-2012 19:19
Dear FriendsCan you help me with identification of discomycete sample from Q. rubra branches?
When I collect it, I was sure that it is Pezicula sp., but I meet smaller and distinctly verrucose spores.
Grateful before,
Alex
Hans-Otto Baral,
14-08-2012 19:38
Re : Discomycete on Quercus rubra branches
Hi Alex
did you test with Lugol? I suppose it is a Pezicula which should show a deep red apical ring. Don't use Melzer 'cause that would resulat in no reaction at all.
Zotto
did you test with Lugol? I suppose it is a Pezicula which should show a deep red apical ring. Don't use Melzer 'cause that would resulat in no reaction at all.
Zotto
Alex Akulov,
14-08-2012 20:21
Re : Discomycete on Quercus rubra branches
Thank you, Zotto,
But I dont seen red apical ring in Lugol.
Alex.
But I dont seen red apical ring in Lugol.
Alex.
Alex Akulov,
14-08-2012 20:38
Re : Discomycete on Quercus rubra branches
Sligthly roseous tips can be considered in several asci, but it is not deep red.
Alex
Alex
Hans-Otto Baral,
14-08-2012 20:47
Re : Discomycete on Quercus rubra branches
Maybe you need to apply more of your solution. You are sure it does not contain chloralhydrate?
Zotto
Zotto
Alex Akulov,
14-08-2012 20:53
Re : Discomycete on Quercus rubra branches
Can it be immature Pezicula cinnamomea?
I used pure Lugol.
Alex
I used pure Lugol.
Alex
Hans-Otto Baral,
14-08-2012 20:58
Re : Discomycete on Quercus rubra branches
Yes, I suppose, but I would rather say dead instead of immature. The asci have their deep red apical ring already very early during development, when the spores are still not present.
Your Lugol should look honey-brown in the bottle, if yellow you need to add a few iodine crystals. But the pure red reaction in Pezicula (type rr) is shown with yellow Lugol also.
Your Lugol should look honey-brown in the bottle, if yellow you need to add a few iodine crystals. But the pure red reaction in Pezicula (type rr) is shown with yellow Lugol also.
Alex Akulov,
14-08-2012 20:58
Re : Discomycete on Quercus rubra branches
I try to prepare fresh Lugol solution tomorrow and to make photo again.
Alex
Alex
Alex Akulov,
14-08-2012 21:02
Re : Discomycete on Quercus rubra branches
Thank you for advise!
Really, I was able to see the redish color only in the very immature asci, where spores has only begun to take shape.
Alex
Really, I was able to see the redish color only in the very immature asci, where spores has only begun to take shape.
Alex