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29-12-2025 23:20

éric ROMERO éric ROMERO

Bonjour, Une récolte du mois d'août 2025 en tou

30-12-2025 16:44

Pascal Ducos

Bonjour,Une anamorphe rose stipitée, très nombre

30-12-2025 17:14

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous aider Albe

30-12-2025 15:31

Johan Boonefaes Johan Boonefaes

I found this unknown star form by the microscopy o

29-12-2025 10:15

Hulda Caroline Holte

Hello, I found and collected this propoloid ascom

30-12-2025 09:04

Josep Torres Josep Torres

Hello.A Pyrenomycete sprouting sparsely but very d

29-12-2025 17:44

Isabelle Charissou

Bonjour,J'aimerais savoir si d'autres personnes au

12-11-2021 00:03

Lepista Zacarias

Hi everybody,A week ago in my fiels trip I noticed

29-12-2025 17:51

Blasco Rafael Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

29-12-2025 17:12

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

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Heterosphaeria patella?
hannie wijers, 12-04-2018 19:31
Hello.
a friend  found on a spot where there are many Achillea millefolium I saw old stems of which she thinks it is Achillea. These stems are all covered with black frb. I did it under the bino. Measure of the spores 12-17x3-5 µm. Asci 80 µm with croziers at the end. Parafysen Setpated and with drops in it J- with Melzer. Both of us think of Heterosphaeria patella. Are we right?

Sincerely Hannie Wijers
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Hans-Otto Baral, 13-04-2018 09:38
Hans-Otto Baral
Re : Heterosphaeria patella?
I think so. The ascus tip reacts faintly red, perhaps you used Melzer? It should be deeply red.

The medulla should be very thick and gelatinised.

Some other species of Heterosphaeria exist which are not always easy to identify.

hannie wijers, 13-04-2018 19:17
Re : Heterosphaeria patella?
Yes I used Melzer. Maybe sounds stupid, but what is the medulla? Thanks Zotto,

Groeten
Hannie
Hans-Otto Baral, 14-04-2018 08:02
Hans-Otto Baral
Re : Heterosphaeria patella?
Medullary excipulum is the inner excipulum. The ectal excipulum is a brown globulosa in Heterosphaeria but very thin.
hannie wijers, 14-04-2018 19:37
Re : Heterosphaeria patella?
Zotto, do you mean this? The first the inner and second the outer side?

GroetenHannie
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Hans-Otto Baral, 14-04-2018 20:37
Hans-Otto Baral
Re : Heterosphaeria patella?
Hmm, it doesn't look as it should. But you don't have a razor blade? Near the margin the inner texture may look like this, but at the lower flanks it changes to intricate with gel, see below.

But the genus is very clear.
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hannie wijers, 14-04-2018 20:44
Re : Heterosphaeria patella?
Hello, 

I have a razor blade. I will look if there is a new one Thanks fot explaning

groeten
Hannie