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18-07-2025 23:03

Help with some conidia.
Josep Torres Josep Torres

Hello.Fruitings between 51 and 130 microns in tota

17-07-2025 11:55

Una para ID 833
Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Sphaerulina cornicola versus Septoria cornina
Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Une hélotiale sur Sphagnum palustre
Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

literature request
Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Troposporella fumosum => Troposporella monilipes
Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Hypoxylon cf ticinense
Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Jackrogersella minutella VS Hypoxylon cohaerens var. microsporum
Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Olla aff. millepunctata (croziers +) on Rubus idaeus
Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Rutstroemia ulmariae(?) on Saxifraga rotundifolia
Gernot Friebes

Hi,do you think this collection could be R. ulmari

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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
  • message #51152
  • message #51152
  • message #51152
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
  • message #51195
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