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28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

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Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

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Yanick BOULANGER

BonjourRécolté sur une brindille au fond d'un fo

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Francois Guay Francois Guay

I found this interesting yellowish asco growing on

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Elisabeth Stöckli

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02-07-2025 09:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello, bonjour.Here is the paper I'm searching for

30-06-2025 16:56

Lydia Koelmans

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30-06-2025 12:09

Edvin Johannesen Edvin Johannesen

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30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

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Otidea umbrina 170115 140
Miguel Ángel Ribes, 27-01-2015 00:55
Miguel Ãngel RibesGood night

Another species from dune environment. I am not capable to separate O. umbrina of O. grandis, O. olivacea and O. olivaceobrunnea. Could you help me?

Apos directly on sand of a north face dune with bryophytes, up to 10 cm tall. Slightly furfuraceous exterior.
Asci eight spores, IKI-, with croziers.
Spores type III (slightly fusiform), smooth, (12.6) 13.5 - 15.3 (15.8) x (6.0) 6.2 - 7.0 (7.4) µm
Q = (1.8) 2.0 - 2.3 (2.5); Me = 14.2 x 6.6 µm ; Qe = 2.2.
Paraphysis bent at tip, plenty of small brown guttules at top cell.
Ectal Excipulum of textura subglobosa-angularis.
Medullar Excipulum of textura intricata.

Thank you.
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Nicolas VAN VOOREN, 29-01-2015 14:55
Nicolas VAN VOOREN
Re : Otidea umbrina 170115 140
Hi Miguel Angel,
In my opinion, this is Otidea bufonia. Spore shape and size match well. To be sure, check if some hyphae of the medullary excipulum present an external brown pigment, looking like finger-prints.
Cheers.
Miguel Ángel Ribes, 29-01-2015 22:36
Miguel Ãngel Ribes
Re : Otidea umbrina 170115 140
Thanks a lot, Nicolas

Something like this?

There are not good pictures (600x), now I have the specimens dried, is it possible to see it if I make new micro from dried material?

Best wishes.
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Nicolas VAN VOOREN, 30-01-2015 14:28
Nicolas VAN VOOREN
Re : Otidea umbrina 170115 140
Yes, it is. So O. bufonia is confirmed.
Miguel Ángel Ribes, 30-01-2015 15:22
Miguel Ãngel Ribes
Re : Otidea umbrina 170115 140
Merci Nicolas

The best.