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22-04-2026 20:54

Pyrenopeziza on monocot.
Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

lachnum pudicellum
Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

24-04-2026 03:16

Trinacrium robustum?
David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 01:06

Neonectria ou thelonectria ?
Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

22-04-2026 20:17

Pseudaegerita spec.
Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

Fungus sp
François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Peziza
Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 19:12

Poilu, violet avec KOH
Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Hymenoscyphus sp
Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

21-04-2026 13:36

Wentiomyces-like on Salix
Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

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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