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29-03-2024 09:21

Michel Hairaud Michel Hairaud

Bonjour, Je recherche la description du genre Mac

26-03-2024 17:14

Juuso Äikäs

These little black ascos were growing on a dead, d

28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

27-03-2024 22:53

Charles Aron Charles Aron

Hi All,Recently I came across these minute, setose

25-03-2024 13:41

B Shelbourne B Shelbourne

• Hyaloscyphaceae (no VBs), Hyaloscypha: Macro a

25-03-2024 21:27

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, March 2024

26-03-2024 14:37

DAVID MARCOS DAVID MARCOS

Spores (telles qu'elles apparaissent à l'intérie

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-03-2024 11:06

michel bertrand

Bonjour, Malgré de nombreuses recherches, je n'a

25-03-2024 14:08

Ursula Kozik

Bonjour et bonne journée, On m'a envoyé une tro

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Similar to Helminthosphaeria?
Mirek Gryc, 28-02-2021 17:30
Hello everyone
Ascomata grew on the trunk of broken pine (Pinus sylvestris), on wood. Morphologically similar to Helminthosphaeria but I do not know this species so I am asking everyone for help in identification.
The size of the spores varies greatly, so I am giving only an example in the photo.
greetings
Mirek
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Andrew N. Miller, 28-02-2021 18:18
Andrew N. Miller
Re : Similar to Helminthosphaeria?
The ascospore germ slit suggests Coniochaeta.  Helminthosphaeria ascospores have a germ pore.

Cheers,
Andy
Mirek Gryc, 28-02-2021 20:48
Re : Similar to Helminthosphaeria?
Hi Andy
Thank you very much for specifying the type.
Looks like I have a serious problem again. The genre is completely unknown to me, but luckily some literature can be found.
So far I have looked at a few works and the only genre that has common features with my collection is Coniochaeta Tilakii.
- very similar sizes of spores
- a slit on one side of the spores
- spores in a gel shell
- perithecia densely covered with setae

However, I do not want to believe that this is this species?
A completely different substrate.
I suspect it will remain "sp" but I will try to explore more mature perithecia anyway.
Mysterious kind!
greetings
Mirek

Peter Püwert, 28-02-2021 21:02
Peter Püwert
Re : Similar to Helminthosphaeria?
Hi, possibly Coniochaeta malacotricha ?

Peter.
Mirek Gryc, 01-03-2021 09:09
Re : Similar to Helminthosphaeria?
Thank you Peter
It is not enough to have a key, you have to be able to use it. The first species of its kind, so I missed something and missed that species.
The species you propose seems very likely and even found in Poland by Chlebicki, also on a pine tree.
The features are very compatible, but the description of the spores makes me wonder?
Is Chlebicki researching dead spores: "large refractive oil-drop"?
Thank you once again.
I check other features yet but I suspect that I determine it just as you suggest.
greetings
Mirek
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