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18-05-2024 10:47

Anna Klos

Goodmorning,We found this tiny ascomycete (max. 1m

10-05-2024 17:40

Anna Klos

Good afternoon, Thursday during an inventory we f

14-04-2024 20:04

Manak Roman

Hi all,I have two very similar finding last weeken

17-05-2024 15:17

éric ROMERO éric ROMERO

Bonjour, Un besoin d'aide pour ce Podospora (...?

17-05-2024 16:25

Pavel Jiracek

Erioscyphella lunata, found on a fallen needle of

29-01-2022 21:44

Jan Eckstein

Good evening, apothecia small, yellowish, 150-300

16-05-2024 11:19

Sylvie Le Goff

Bonjour, j'ai récolté sur une branchette de feui

14-05-2024 09:19

Hans-Otto Baral Hans-Otto Baral

Hi, I want to announce for next Sunday 17.00 middl

16-05-2024 11:49

Castillo Joseba Castillo Joseba

De ayer en rama de abetoNo se por donde mirarA ver

14-05-2024 09:50

Yannick Mourgues Yannick Mourgues

Hi. Found on decorticated wod of Populus cf. alba

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Otidea under Quercus
Enrique Rubio, 04-11-2013 19:56
Enrique RubioHi to all
This nice Otidea makes auricularioid apothecia briefly stipitate up to 60 mm high with some basal ribs that may be branched and anastomosed. The excipulum is citrine yellow and furfuraceous (under lens!) and the hymenium first greyish late ochraceous. 
It grew on a oromediterranean environnement at 1100 m of altitude under Quercus pyrenaica and Quercus ilex at the north of Spain (province of León).


The paraphyses have no pigmented vacuoles and they are straight or curved. The cells of the textura  prismatica of the ectal excipulum have rich citrine yellow incrusting pigment but they have not amber drops in Melzer or IKI reagent.


I feel this fungus is close to O. concinna or O. phlebophora . What's your opinion?
Thanks again  

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Nicolas VAN VOOREN, 05-11-2013 07:23
Nicolas VAN VOOREN
Re : Otidea under Quercus
Hi Enrique.
I think it's O. concinna. This particular yellow color is typical. Note also that the paraphyses are not very curved at the top, this is another good feature.
O. phlebophora has narrower spores.
Enrique Rubio, 05-11-2013 14:37
Enrique Rubio
Re : Otidea under Quercus
Thanks, Nicolas. Please, what's the spore size for phlebophora?