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Mot de passe perdu? S'inscrire

25-01-2015 12:02

Leandro Sánchez Leandro Sánchez

Sur terrain sablonneux, dunes établies, près de

23-01-2015 08:26

brigitte vignot

bonjour trouvé sur écorce de feuillus (probable

22-01-2015 20:46

Miguel Ãngel Ribes Miguel Ángel Ribes

Hello, good nightI have this small (1-2 mm broad)

25-01-2015 09:45

Vasileios Kaounas Vasileios Kaounas

I want to ask a question. Can we only from a featu

25-01-2015 09:31

Nina Filippova

I was following Barr (1970) for identification of

24-01-2015 14:31

Nina Filippova

Good day to everyone,there is some uncertainty wit

23-01-2015 20:56

Godorova Olga Godorova Olga

Hello. I thought, I've found some tiny Cheilymenia

23-01-2015 18:08

Godorova Olga Godorova Olga

Hello. I've found these on rotten stems of grass i

23-01-2015 16:06

Malcolm  Greaves Malcolm Greaves

This second Ascobolus was found on Alpaca dung but

23-01-2015 13:54

Garcia Susana

Apothecia found on hardwood.Size of 250-850um. Gra

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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.