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03-10-2025 13:44

Unknown on Populus -> Pyxidiophora species
Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

13-10-2025 19:05

Blanc sur tronc décortiqué
Louis DENY

Bonjour forumSur tronc décortiqué de feuillu x,

17-02-2013 21:11

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Peter Welt Peter Welt

Jamoni, P.G. 1998. Un nuovo discomicete coprofilo

11-10-2025 20:27

On Robinia pseudoacasia
Marcel Heyligen Marcel Heyligen

Found on a barked branch, 14 mm in diameter, of Ro

11-10-2025 14:20

Chromelosporium
Jean-Luc Ranger

bonjour à tous, Je ne vois pas comment l'on peut

09-10-2025 22:14

Hymenoscphyus or Bryoscyphus? Yellow cup / white stipe
S. Rebecca

We just had the Bavarian Mycology Conference in Au

10-10-2025 00:49

Amicodisca svrcekii ?
Ethan Crenson

Hello all, This was found last weekend on a hardw

06-10-2025 15:57

Lophiostoma
David Chapados David Chapados

Hi, Could anyone help me with this Lophiostoma? 

04-10-2025 02:13

Hymenoscyphus with a reddish stipe
Francois Guay Francois Guay

Hi everyone,   I found this Hymenoscyphus growi

03-10-2025 22:17

White asco on Fagus grandifolia leaf
Francois Guay Francois Guay

Hi everyone,   I found this white, star-shaped

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Otidea cf.umbrina
Pavol Palo, 27-08-2014 21:08
Hello friends,


what do you think about Otidea cf. umbrina ? I found this one under Picea sp., Alnus glutinosa and Pinus sp..

Fruitbody 30-50 x 20-90 x 20-90 mm


Spores (12)13-16(17) x 6-7 µm


Regards


Pavol


 

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Ibai Olariaga Ibarguren, 29-08-2014 23:10
Re : Otidea cf.umbrina

Hi there!

To me it looks like O. mirabilis as I can see some bluish-violaceous shades in the young ascoma of the first fruitbody. The only other species it can be is O. bufonia, with brown crystal deposits in the medullary excipulum (in water or Melzer). You should check that to rule it out.

At least in Northern Europe O. mirabilis appears to only occur in calcareous localities.

Cheers!

Ibai.
Pavol Palo, 01-09-2014 22:11
Re : Otidea cf.umbrina

Hi Ibai


thank you very much, it will be O.mirabilis


With Best Wishes,
Palo


 

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Ibai Olariaga Ibarguren, 02-09-2014 09:10
Re : Otidea cf.umbrina
Hi Pavol,

Actually it looks like the medullary excipulum has the sphaeroid brown crystaliized deposits characteritic of O. bufonia. Could you get a photo with the brown crystals in focus?

Cheers!

Ibai.
Pavol Palo, 02-09-2014 17:28
Re : Otidea cf.umbrina

Hi Ibai


this is my best quality :-(


regards 


Pavol

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Ibai Olariaga Ibarguren, 02-09-2014 18:06
Re : Otidea cf.umbrina

Yes, they look like those of O. bufonia. We have also seen O. bufonia specimens with light bluish shades when young and thus reminiscent of O. mirabilis, which seems to be the case. We have never seen sphaeroid crystals like those you have photographed in O. mirabilis.

Thanks!

Ibai.