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21-03-2026 22:59

Hysteriaceae ??
Petr Soucek

Good evening, I would appreciate some advice on th

21-03-2026 15:13

MYXOMYCETICOLOUS FUNGI
Lepista Zacarias

Hello everyone, Does any one know of any literatu

20-03-2026 12:53

Eutypa spec. (?)
Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Hymenoscyphus ¿calycinoides?
Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Pseudomassaria-like on Cornus alba
Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Xylariaceae? on Carpinus betulus wood
Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

Myriosclerotinia curreyana?
William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

Lasiobelonium corticale ?
François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

"Lasiosphaerioid"
Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Massarina on Corylus
Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

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Pezicula cinnamomea ? sur branche morte de Tilia ?
Bernard CLESSE, 10-11-2017 18:48
Bernard CLESSEBonsoir à tous,

Voici ce que je pense être Pezicula cinnamomea sur branche pourrie, de tilleul très probablement.

Qu'en pensez-vous ?

Bernard
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  • message #51152
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Hans-Otto Baral, 10-11-2017 21:22
Hans-Otto Baral
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
I tend to say P. cinnamomea, yes. The apical ring should react deep red as in most species.
Bernard CLESSE, 10-11-2017 23:22
Bernard CLESSE
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
Thank you for your answer, Zotto. It is possible that my lugol is no longer of good quality.

Bernard
Bernard CLESSE, 12-11-2017 12:14
Bernard CLESSE
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
Hi, Zotto, here are apical ring of asci with the brownish-reddish colour in IKI + Melzer.

Bernard
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Hans-Otto Baral, 12-11-2017 12:16
Hans-Otto Baral
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
that's good, I only don't understand why you added Melzer. Melzer may show the redbrown stain for a few seconds but then the chloralhydrate clears the reaction.
Bernard CLESSE, 12-11-2017 12:18
Bernard CLESSE
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
OK thank you, Zotto ! As my lugol is old, I thought that by putting a little more iodine with the melzer that the effect would be strengthened ... :o)

Bernard
Hans-Otto Baral, 12-11-2017 12:26
Hans-Otto Baral
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
Not sure what kind of MLZ you have. If you put enough of it, you should see no reaction anymore, though the plasma is yellow. If the red is still there in full strength, your MLZ is more probably Lugol and lacks the chloral hydrate. But you can smell this substance also.
Bernard CLESSE, 12-11-2017 12:29
Bernard CLESSE
Re : Pezicula cinnamomea ? sur branche morte de Tilia ?
OK Zotto, thank you for your information!

Bernard