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24-02-2026 00:21

Benoît Segerer

Hello,I'm new to this forum, I hope I won't be irr

23-02-2026 11:22

Thomas Læssøe

https://svampe.databasen.org/observations/10584971

29-11-2024 21:47

Yanick BOULANGER

BonjourJ'avais un deuxième échantillon moins mat

07-02-2023 22:28

Ethan Crenson

Hello friends, On Sunday, in the southern part of

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

19-02-2026 13:50

Margot en Geert Vullings

We found this collection on deciduous wood on 7-2-

19-02-2026 12:01

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España), recole

17-02-2026 09:41

Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

16-02-2026 21:25

Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

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Black ascomata the bark Prunus sp.
Mirek Gryc, 30-04-2021 19:59

Hello
Perithecium very small, barely visible without a magnifying glass.
ASCI - reaction to the iodine did not notice.
Spores - change the color to olive under the influence of iodine.
(15.8) 16.6 - 22.3 (22.5) × (6.3) 6.4 - 7.2 (7.5) µm
Q = (2.3) 2.4 - 3.3 (3.4); N = 12
Me = 19.2 × 6.8 µm; QE = 2.8
I have no idea.
Mirek
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Jac Gelderblom, 03-05-2021 17:19
Re : Black ascomata the bark Prunus sp.
Hello Mirk

It could be Sydowiella ambigua.

See attached pdf

greetings

Jac gelderblom
Mirek Gryc, 03-05-2021 19:43
Re : Black ascomata the bark Prunus sp.
Hi Jac.
I do not know if Ascomata is properly mature so I keep them alive. I will try to examine again for some time.
I do not know this species but worried me spores.
At Sydowiella ambigua, there is a visible stenosis at the septa. In my spores I did not notice it?
Thanks for the suggestions.
greetings
Mirek
Mirek Gryc, 10-05-2021 13:50
Re : Black ascomata the bark Prunus sp.
It seems to me that Ascomata is already mature and further breeding does not make sense. Spores have changed slightly but are still smooth.
Their Olive Colore leads me towards Amphisphaeria?
Also the characteristic Septa in the spores indicates this type.
With such features I came to two species:
Amphisphaeria Vibratilis - here all the features agree in addition to the dimensions of spores. Difference too big to recognize my find for this species, although I saw so marked on the internet, with such dimensions of spores.
Next species, whose dimensions of spores better fit, are Amphisphaeria Micheliae, which was also listed with Prunus.
In this species, however, there should be a blue reaction asci, which is not observed.

In this situation, unfortunately but I will not find solutions for this collection unless someone friendly help.
I think will remain: Amphisphaeria Sp.


Spores - new measurement


(18.8) 19 - 20.16 (20.2) × (7.5) 7.6 - 8 µm
Q = (2.5) 2.51 - 2.59 (2.6) ; N = 8
Me = 19.6 × 7.7 µm ; Qe = 2.5


 


greetings
Mirek

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