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14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Gernot Friebes

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

14-07-2025 11:19

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

25-02-2023 18:36

Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

12-07-2025 16:45

Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'avais d'abord pensé à des stro

05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

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Ascomycete on an old wood stair
Lepista Zacarias, 14-08-2015 00:00
Dear all,
I would like to classify the ascomycete growing in an old portable wood stair. Here are some of its features:
- Apothecia rounded, black, less than 1 mm in diameter;
- Asci 8-spored, up to 100 x 15 um;
- Spores hialine, coiled in ascus, multi-septate (up to 10 septa), with dimensions
(28.5) 30.6 - 38.3 (39.4) x (6.8) 6.9 - 8.5 (9.3) um
Q = (3.6) 3.9 - 5 (5.7) ; N = 26, Me = 34.4 x 7.8 um ; Qe = 4.4;
- Paraphysis anastomosed at the apices with a bluish-black colour;
- All parts I-.
Any help will be appreciated.
Thanks in advance,
zaca
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DirkW, 14-08-2015 00:09
DirkW
Re : Ascomycete on an old wood stair
hi lepista,

thats patellaria atrata in a very dry state. very common on decorticated wood and "human influenced" substrats like stairs, fences etc ... i even found some on an rope ;-)

best

dirk
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Lepista Zacarias, 14-08-2015 00:51
Re : Ascomycete on an old wood stair
Hi Dirk,
In fact, it seems well established in human environments.
Thanks for the help,
Yours,
zaca
Hans-Otto Baral, 14-08-2015 08:17
Hans-Otto Baral
Re : Ascomycete on an old wood stair
Patellara atrata or a very closely related species. In the living state I would see more clear, although the blueish colour tells for my P. "crassispora".

In which region did you collect this?

Zotto
Lepista Zacarias, 14-08-2015 13:56
Re : Ascomycete on an old wood stair
Hi Zotto,
Thanks for the comment.
This material is from Lourinhã, Portugal (west -center coast). It was analyzed just after being collected. What do you see more clear?
Regards,
zaca
Hans-Otto Baral, 14-08-2015 16:33
Hans-Otto Baral
Re : Ascomycete on an old wood stair
The oil drops in the spores tend to be multiguttulate in crassispora but are always a few large in atrata.

Maybe the drought was so long that the fungus did not survive? Or you should test younger apothecia. If you place the piece under water for a minute and then let it dry for a while, the apos will be imbibed and you will perhaps find also living ones.

Lepista Zacarias, 14-08-2015 22:12
Re : Ascomycete on an old wood stair
Thanks, Zotto.
I will try it next week (I'm travelling now) and post new results, if anything different.
Best regards,
zaca
Hans-Otto Baral, 14-08-2015 22:33
Hans-Otto Baral
Re : Ascomycete on an old wood stair
Hi Dirk

Great! - that case I noticed also some years ago :-)

Zotto
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DirkW, 14-08-2015 22:54
DirkW
Re : Ascomycete on an old wood stair
hi zotto,

one should examine more ropes :-)

i remember a rope you documentated with a bunch of orbilias - but unfortunately i lost the picture ...

best

dirk
Hans-Otto Baral, 15-08-2015 18:24
Hans-Otto Baral
Re : Ascomycete on an old wood stair
yes it was this rope, with various ascos.... Orbilia aristata the most frequent.
Lepista Zacarias, 20-08-2015 00:57
Re : Ascomycete on an old wood stair
I followed Zotto recommendation to try to observe some living spores, but it seems that it doesn't worked. I upload a new photo with spores inside the asci, all seeming to be dead.
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Hans-Otto Baral, 20-08-2015 09:14
Hans-Otto Baral
Re : Ascomycete on an old wood stair
you are right :-(
Lepista Zacarias, 20-08-2015 22:37
Re : Ascomycete on an old wood stair
Thanks, Zotto, for confirmation.
By the end of the week I will return to the place and will collect another sample.
Best regards,
zaca