21-11-2025 11:52
Jean-Luc RangerBonjour à tous, on voit toujours 2 espèces areni
21-11-2025 10:56
Christopher Engelhardt
Very small (~0,5 mm) white ascos, found yesterday
14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
17-11-2025 21:46
Philippe PELLICIERBonjour,Récolté sur bois pourrissant de feuillu
20-11-2025 14:14
Mick PeerdemanFound on the leaves of 'Juglans regia' in the Neth
20-11-2025 13:07
Mick PeerdemanIn January i found these black markings on the dea
Otidea umbrina 170115 140
Miguel Ángel Ribes,
27-01-2015 00:55
Good nightAnother 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.
Nicolas VAN VOOREN,
29-01-2015 14:55
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.
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
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.
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.
Nicolas VAN VOOREN,
30-01-2015 14:28
Re : Otidea umbrina 170115 140
Yes, it is. So O. bufonia is confirmed.
Miguel Ángel Ribes,
30-01-2015 15:22
Re : Otidea umbrina 170115 140
Merci Nicolas
The best.
The best.